Reserve Sites Assessment - Hyder Consulting

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Reserve Sites Assessment - Hyder Consulting

Snowdonia National Park Authority

Local Development Plan

Strategic Environmental Assessment and

Sustainability Appraisal

Reserve Sites Assessment


Hyder Consulting (UK) Limited

2212959

Firecrest Court

Centre Park

Warrington WA1 1RG

United Kingdom

Tel: +44 (0)1925 830 206

Fax: +44 (0)1925 830 207

www.hyderconsulting.com

Snowdonia National Park Authority

Local Development Plan

Strategic Environmental Assessment and

Sustainability Appraisal

Reserve Sites Assessment

Author

David Hourd

Checker

Nicky Hartley

Approver

Nicky Hartley

Report No

017-NH51128-NHR-01

Date 3 December 2010

This report has been prepared for Snowdonia National Park

Authority in accordance with the terms and conditions of

appointment for Strategic Environmental Assessment and

Sustainability Appraisal dated 22 November 2010 . Hyder

Consulting (UK) Limited (2212959) cannot accept any

responsibility for any use of or reliance on the contents of

this report by any third party.

Local Development Plan—Strategic Environmental Assessment and Sustainability Appraisal

Hyder Consulting (UK) Limited-2212959

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Local Development Plan—Strategic Environmental Assessment and Sustainability Appraisal

Hyder Consulting (UK) Limited-2212959

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CONTENTS

Abbreviations ................................................................................................... ii

1 Introduction ........................................................................................... 1

2 Impact Assessment .............................................................................. 1

Local Development Plan—Strategic Environmental Assessment and Sustainability Appraisal

Hyder Consulting (UK) Limited-2212959

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Page i


Abbreviations

BAP

EA

GQA

km

LDP

m

SA

SAC

SEA

SuDS

SSSI

Biodiversity Action Plan

Environment Agency

General Quality Assessment

kilometre

Local Development Plan

metre

Sustainability Appraisal

Special Area of Conservation

Strategic Environmental Assessment

Sustainable Drainage Systems

Site of Special Scientific Interest

Local Development Plan—Strategic Environmental Assessment and Sustainability Appraisal

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Page ii


1 Introduction

This report presents an assessment of ten Reserve Sites against the 21 Sustainability Appraisal

(SA) Objectives developed for the combined SA and Strategic Environmental Assessment

(SEA) of the Snowdonia National Park Authority Local Development Plan (LDP).

This report provides additional information to be read in conjunction with the SA/SEA Report

(008-NH51128-NHR-02) and associated addenda reports.

The ten Reserve Sites are:

• Land adjacent Y Rhos – Llanegryn

• Land near Clydfan, Bryncrug

• Land near Bennar Terrace, Dolwyddelan

• Land near Ganllwyd Primary School, Ganllwyd

• Land adjacent to Glenville, Tal-y-Bont

• Land near Llwyn-y-Gadair, Llanfair

• Land near Maes y Waen, Penmachno

• Land near Rhys Terrace, Pennal

• Land adjacent to Roualeyn Nursery, Trefriw

• Land behind Ysgol Bro Tryweryn, Frongoch

2 Impact Assessment

Table 2-2 presents the assessment of the sites against each objective. It also identifies possible

cumulative effects, a summary and key recommendations for each site.

A key for the nomenclature used in the Table 2-2 is provided in Table 2-1 below.

Table 2-1

Assessment Notation Used to Complete the Matrices

Impact Description Symbol

Major Positive

Impact

The proposal contributes to the achievement of all elements

of the SA Objective.

++

Positive Impact The proposal contributes partially to the achievement of the

SA Objective but not completely.

+

No Impact/

Neutral

There is no clear relationship between the proposal and/or

the achievement of the SA Objective or the relationship is

negligible.

Negative Impact The proposal detracts from the achievement of some

elements of the SA Objective.

-

Major Negative

Impact

Uncertain

impact – more

information

required

The proposal detracts from the achievement of all elements

of the SA Objective.

It is not possible to determine the nature of the impact as

there may be too many external factors that would influence

the appraisal or the impact may depend heavily upon

implementation at the local level.

- -

?

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Impact Description Symbol

Positive and

Negative

Impacts

Level of

Uncertainty

Permanent

Impact

Temporary

Impact

Direct Impact

The proposal has a combination of both positive and

negative contributions to the achievement of the SA

Objective.

There is a high degree of uncertainty in the impact

prediction

There is a medium degree of uncertainty in the impact

prediction

There is a low degree of uncertainty in the impact prediction

A receptor would experience a permanent change as a

result of the proposal.

A receptor would experience a temporary change as a

result of the proposal.

A receptor would be impacted as a direct result of the

proposal.

Indirect Impact A receptor would be impacted as an indirect result of the

proposal.

+/-

H

M

L

P

T

D

I

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Table 2-2

Impact Matrix for Reserved Sites

SA Objectives

Manage the effects of

climate change

through mitigation

and adaptation

Ensure that the

location and design of

new development is

acceptable in terms of

the potential

consequences of

flooding

Promote the use of

sustainable locally

sourced material

including energy

Land adjacent Y

Rhos - Llanegryn

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

L

Near but not in

floodplain. Possible

cumulative increase in

surface run-off.

Potential future issue.

SuDS should be

incorporated.

L

Promote the use of

sustainable transport

modes and reduce the L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

Land nr Clydfan,

Bryncrug

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L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

L

Near to extensive areas

of fluvial flood potential

but site is not within

floodplain. Possible

cumulative increase in

surface run-off.

Potential future issue.

SuDS should be

incorporated.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

L

Land nr Bennar

Terrace,

Dolwyddelan

H

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

Flood mitigation not

known.

-

L-T, D, L

The site lies adjacent to

a watercourse. Although

not clear, the EA flood

map (EA website)

suggests that part of the

site could be within the

floodplain of the river.

This site should be

reviewed in greater

detail for flood potential

with the EA and an

appropriate flood risk

assessment should be

undertaken.

SuDS should be

incorporated.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

+

M-T, I, M

Land nr Ganllwyd

Primary School,

Ganllwyd

H

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

Flood mitigation not

known.

?

H

The site lies adjacent to

the Afon Mawddach.

Although not clear, the

EA flood map (EA

website) suggests that

the site could be

immediately adjacent to

floodplain. This site

should be reviewed in

greater detail for flood

potential with the EA

and an appropriate

flood risk assessment

should be undertaken if

necessary. SuDS

should be incorporated.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

L

Land adjacent to

Glenville, Tal-y-Bont

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

L

Not in floodplain.

Possible cumulative

increase in surface runoff.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

+

Land nr Llwyn-y-

Gadair, Llanfair

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

L

Not in floodplain.

Possible cumulative

increase in surface runoff.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

Land nr Maes y

Waen, Penmachno

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

L

Floodplain associated

with the Afon Machno

lies approximately 150-

200m to the west.

Possible cumulative

increase in surface runoff.

SuDS should be

incorporated.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

Land near Rhys

Terrace, Pennal

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

L

Not in floodplain.

Possible cumulative

increase in surface runoff.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

Land adjacent

Roualeyn Nursery,

Trefriw

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

H

Floodplain associated

with the Crafnant lies

approximately 50m to

the west. Possible

cumulative increase in

surface run-off. SuDS

should be incorporated.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.

M-T, I, M L L L L L

Land behind Ysgol

Bro Tryweryn,

Frongoch

L

Too small to generate

significant emissions.

Possible cumulative

effects. Design and

mitigation measures

unknown at this point.

Flood mitigation not

known.

-

L-T, D, M

The site appears to fall

partly within the flood

plain of the Afon

Tryweryn. It is not clear

from the EA flood map

(EA website) whether

this is at risk from

extreme flooding only.

This site should be

reviewed in greater

detail for flood potential

with the EA and an

appropriate flood risk

assessment should be

undertaken.

SuDS should be

incorporated.

L

Neutral effects

predicted, unlikely to

cause significant

effects. However, use of

locally sourced

materials should be

promoted.


SA Objectives

impact of cars, road

freight and

infrastructure

Protect and enhance

landscape character

and quality

Protect and enhance

air quality

Land adjacent Y

Rhos - Llanegryn

Llanegryn is described

in the LDP as having a

range of poor to good

public transport

provision. There is a

bus stop opposite the

site. This is likely to

have little benefit to this

objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby Tywyn

which can be reached

by bus.

M

Greenfield urban fringe

site. May have minor

effects on townscape

and views at a local

level given the relative

size of the site.

Deemed insignificant

effect at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Land nr Clydfan,

Bryncrug

Bryncrug is described in

the LDP as having a

range of poor to good

public transport

provision. There is a

bus stop in the village.

This is likely to have

little benefit to this

objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby Tywyn

which can be reached

by bus.

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M

Greenfield urban fringe

site. May have minor

effects on townscape

and views at a local

level given the relative

size of the site.

Deemed insignificant

effect at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Land nr Bennar

Terrace,

Dolwyddelan

Dolwyddelan is fairly

well served by public

transport. The

settlement is served by

buses and has a railway

station which is near to

the site. Higher level

services are located in

nearby Betws-y-Coed

which can be reached

by bus and rail. Travel

by car is still likely to be

the main mode of

transport in this rural

area.

M

Site is located in an

area of scrub and

scattered trees within

the river valley near to

existing housing. Some

screening from the road

may exist. May have

minor effects on

townscape and views at

a local level and from

local high-points.

Deemed insignificant at

the strategic level

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car. Good

public transport links.

Land nr Ganllwyd

Primary School,

Ganllwyd

Ganllwyd is described in

the LDP as having a

range of poor to good

public transport

provision. There is a

bus stop near to the site

on the A470. This is

likely to have little

benefit to this objective

given the overall

likelihood of car

dependence. However,

higher level services are

found in nearby

Dolgellau which can be

reached by bus.

-

L-T, D, H

Greenfield site adjacent

to A470 in small

roadside hamlet.

Surrounding valley

landscape is of a high

quality and site might

have minor adverse

effects at the local level.

Some uncertainty as to

how significant this

could be at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Emissions from the

A470 may affect the

new residents at the

Land adjacent to

Glenville, Tal-y-Bont

Tal-y-bont is described

in the LDP as having a

range of poor to good

public transport

provision. There are bus

stops and a rail station

within walking distance

from the site. Higher

level services are

located in nearby

Barmouth which can be

reached by bus and rail.

Travel by car is still

likely to be the main

mode of transport in this

rural area.

M

Greenfield urban fringe

site. May have minor

effects on townscape

and views at a local

level given the relative

size of the site.

Deemed insignificant

effect at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car. Good

public transport links.

Land nr Llwyn-y-

Gadair, Llanfair

Llanfair is described in

the LDP as having a

range of poor to good

public transport

provision. There is a

bus stop in the village.

There is also a railway

station approximately

2km from the site at

Llandanwg. This is likely

to have little benefit to

this objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby Harlech

which can be reached

by bus and rail.

M

Greenfield urban fringe

site. May have minor

effects on townscape

and views at a local

level given the relative

size of the site.

Deemed insignificant

effect at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Land nr Maes y

Waen, Penmachno

Penmachno is

described in the LDP as

having a range of poor

to good public transport

provision. There is a

bus stop near to the

site. This is likely to

have little benefit to this

objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby Betws–

y-Coed which can be

reached by bus.

M

Greenfield urban fringe

site. May have minor

effects on townscape

and views at a local

level given the relative

size of the site.

Deemed insignificant

effect at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Land near Rhys

Terrace, Pennal

Pennal is described in

the LDP as having a

range of poor to good

public transport

provision. There is a

bus stop in the village.

This is likely to have

little benefit to this

objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby

Machynlleth which can

be reached by bus.

M

Infill of area of open

space within the village.

May have minor effects

on townscape and

views at a local level.

Deemed insignificant

effect at the strategic

level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Land adjacent

Roualeyn Nursery,

Trefriw

Trefriw is described in

the LDP as having a

range of poor to good

public transport

provision. There is a

bus stop in the village.

This is likely to have

little benefit to this

objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby

Llanrwst and Betws-y-

Coed which can be

reached by bus.

M

Greenfield urban fringe

site on a sloping valley

side. May have minor

effects on townscape

and views at a local

level including from the

opposite side of the

valley. Deemed

insignificant effect at the

strategic level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.

Land behind Ysgol

Bro Tryweryn,

Frongoch

Frongoch is a very

small settlement. The

LDP describes it as

having a range of poor

to good public transport

provision. There is a

bus stop in the village.

This is likely to have

little benefit to this

objective given the

overall likelihood of car

dependence. However,

higher level services are

found in nearby Y Bala

which can be reached

by bus.

-

L-T, D, H

Greenfield site adjacent

to road in small

roadside hamlet.

Surrounding valley

landscape is rural and

site might have minor

adverse effects at the

local level. Some

uncertainty as to how

significant this could be

at the strategic level.

L

Too small to generate

significant traffic

emissions. Possible

cumulative effects with

other sites across the

National Park but air

quality is generally good

and policies in the LDP

seek to minimise travel

by private car.


SA Objectives

Conserve the quality

of soils through

reducing

contamination and

protecting soil

function

Safeguard National

Park geology and

geomorphology

Protect and enhance

biodiversity

Value and protect the

historic environment

including built

heritage, archaeology

Land adjacent Y

Rhos - Llanegryn

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

L

There would be no

significant effects on

geology and

geomorphology.

L

There are no notable

ecological designations

near to the site. It is

currently agricultural

land of low value to

biodiversity although

hedgerows may be lost.

It is recommended that

hedgerows are retained

where possible.

M

The site does not fall

Land nr Clydfan,

Bryncrug

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

L

There would be no

significant effects on

geology and

geomorphology.

L

There are no notable

ecological designations

near to the site. It is

currently agricultural

land of low value to

biodiversity although

hedgerows may be lost.

It is recommended that

hedgerows are retained

where possible.

M

The site does not fall

Land nr Bennar

Terrace,

Dolwyddelan

-

L-T, D, M

There would be a very

small loss of soil

resources. The quality

of the land is unknown.

M

There would be no

known significant

effects on geology and

geomorphology.

?

H

There are no notable

ecological designations

near to the site. There is

potential for the site to

be used by BAP and

protected species (e.g.

otters) given its

secluded location and

proximity to a

watercourse.

Appropriate ecological

surveys and

assessments would be

required.

M

The site does not fall

Land nr Ganllwyd

Primary School,

Ganllwyd

development.

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

M

There would be no

known significant

effects on geology and

geomorphology.

?

H

The site lies near to

the Afon Eden - Cors

Goch Trawsfynydd SAC

and SSSI, designated

for, amongst other

things, otters. The

Meirionnydd Oakwoods

and Bat Sites SAC, a

NNR and a woodland

SSSI also lie near to the

site. There is potential

for the proposed works

to impact upon mobile

protected species

although other policies

in the LDP ensure

against this. Appropriate

ecological surveys and

assessments would be

required.

?

H

The site does not fall

Land adjacent to

Glenville, Tal-y-Bont

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

L

There would be no

significant effects on

geology and

geomorphology.

?

H

The site lies around

250m from the

Meirionnydd Oakwoods

and Bat Sites SAC and

Coed Cors Y Gedol

SSSI. There is a small

potential for the

proposed works to

impact upon mobile

protected species (e.g.

bats) although other

policies in the LDP

ensure against this.

Appropriate ecological

surveys and

assessments would be

required.

?

H

The site does not fall

Land nr Llwyn-y-

Gadair, Llanfair

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

L

There would be no

significant effects on

geology and

geomorphology.

L

Site lies approximately

1km from coastal nature

conservation

designations (SSSI and

SAC). It is currently

agricultural land of low

value to biodiversity.

M

The site does not fall

Land nr Maes y

Waen, Penmachno

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

L

There would be no

significant effects on

geology and

geomorphology.

L

Site lies approximately

1-2km from national and

international nature

conservation

designations to the

south and west. It is

currently grazing land of

low value to

biodiversity.

M

The site does not fall

Land near Rhys

Terrace, Pennal

-

L-T, D, L

Open grassed area for

which the use is not

currently determined.

There would be a very

small loss of soil

resources.

L

There would be no

significant effects on

geology and

geomorphology.

L

Site lies within the

village. There are no

statutory designated

sites nearby although

the whole area lies

within a biosphere zone.

Given the village

location and managed

nature of the site it is

considered of low value

to biodiversity.

M

The site does not fall

Land adjacent

Roualeyn Nursery,

Trefriw

-

L-T, D, L

Greenfield land possibly

used for agriculture or

pasture. There would be

a very small loss of soil

resources.

L

There would be no

significant effects on

geology and

geomorphology.

?

H

There are no notable

ecological designations

near to the site. There is

potential for the site to

be used by BAP and

protected species (e.g.

otters) given its

proximity to a

watercourse.

Appropriate ecological

surveys and

assessments would be

required.

M

The site does not fall

Land behind Ysgol

Bro Tryweryn,

Frongoch

-

L-T, D, L

Greenfield land used for

agriculture. There would

be a very small loss of

soil resources.

L

There would be no

significant effects on

geology and

geomorphology.

-

L-T, D/I, M

Site lies adjacent

(except for narrow

buffer) to the Afon

Tryweryn which is

designated as part of

the River Dee and Bala

Lake SAC and the River

Dee SSSI. These are

designated for the

presence of a variety of

protected habitats and

species including

mobile species such as

otters. The construction

and operation of the site

has potential to

adversely affect these

designations. although

other policies in the

LDP should ensure

against this. It is

considered a higher risk

than the other sites

discussed here.

M

The site does not fall

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SA Objectives

and historic

landscape

Value and protect

local diversity and

distinctiveness

including townscape

character

Conserve, promote

and enhance

Snowdonia’s cultural

heritage and the

Welsh language

To safeguard the

quality and quantity of

water resources

Land adjacent Y

Rhos - Llanegryn

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments. However, it

does lie within the

Dysynni Valley Historic

landscape and may

have minor cumulative

effects on heritage

together with other

settlements in the area.

M

May have minor effects

on townscape and

views at a local level

given the relative size of

the site. Deemed

insignificant effect at the

strategic level.

Encourage sensitive

design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

Site lies near to a

tributary of the Afon

Land nr Clydfan,

Bryncrug

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments. However, it

does lie within the

Dysynni Valley Historic

landscape and may

have minor cumulative

effects on heritage

together with other

settlements in the area.

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M

May have minor effects

on townscape and

views at a local level

given the relative size of

the site. Deemed

insignificant effect at the

strategic level.

Encourage sensitive

design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

Site lies near to a

tributary of the Afon

Land nr Bennar

Terrace,

Dolwyddelan

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments.

M

Some screening from

the road may exist. May

have minor effects on

townscape and views at

a local level and from

local high-points.

L

Very unlikely to have a

notable impact given

the scale of

development.

-

S-T, D, M

Site lies adjacent to a

tributary of the Afon

Land nr Ganllwyd

Primary School,

Ganllwyd

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments. However,

the area has a rich

history associated with

gold mining and the

Quaker movement.

Adjacent buildings may

have heritage value. It

is recommended that

appropriate

archaeological studies

are undertaken.

-

L-T, D, M

Greenfield site adjacent

to A470 in small

roadside hamlet.

Although only five units,

these would be very

visible within this small

settlement. Design of

the units should be very

sensitive to their setting.

L

Very unlikely to have a

notable impact given

the scale of

development although

the area does have

strong cultural

associations.

-

S-T, D, H

Site lies opposite the

Afon Mawddach which

Land adjacent to

Glenville, Tal-y-Bont

within a Conservation

Area nor is the site

located in close

proximity to any

Scheduled Ancient

Monuments. It lies

adjacent to a Historic

Park and Garden (now

agricultural land). It also

lies within the Ardudwy

Historic landscape and

may have minor

cumulative effects on

heritage together with

other settlements in the

area. It is recommended

that appropriate

archaeological studies

are undertaken.

M

May have minor effects

on townscape and

views at a local level

given the relative size of

the site. Deemed

insignificant effect at the

strategic level.

Encourage sensitive

design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

Site lies approximately

250m from the Afon

Land nr Llwyn-y-

Gadair, Llanfair

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments. However, it

does lie within the

Ardudwy Historic

landscape and may

have minor cumulative

effects on heritage

together with other

settlements in the area.

M

May have minor effects

on townscape and

views at a local level

given the relative size of

the site. Deemed

insignificant effect at the

strategic level.

Encourage sensitive

design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

There are no notable

watercourses near to

Land nr Maes y

Waen, Penmachno

within a Conservation

Area. A Scheduled

Ancient Monument

(prehistoric cairns) lies

approximately 1km to

the west. This would not

be affected by the

proposals.

M

Greenfield site at

urban/rural fringe. May

have minor effects on

townscape and views

from neighbouring

properties at a local

level given the relative

size of the site.

Deemed insignificant

effect at the strategic

level. Encourage

sensitive design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

Site lies approximately

200m from the Afon

Land near Rhys

Terrace, Pennal

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments.

M

May have minor effects

on townscape and

views at a local level

due to the loss of open

space. Deemed

insignificant effect at the

strategic level.

Encourage sensitive

design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

Site lies approximately

250m from the Afon

Land adjacent

Roualeyn Nursery,

Trefriw

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments.

M

May have minor effects

on townscape and

views at a local level

due to the size of the

site and its more

prominent valley side

location. Deemed

insignificant effect at the

strategic level.

Encourage sensitive

design.

L

Very unlikely to have a

notable impact given

the scale of

development.

M

Site lies near to the

Crafnant. There is no

Land behind Ysgol

Bro Tryweryn,

Frongoch

within a Conservation

Area nor is the site

located near to any

Scheduled Ancient

Monuments.

-

L-T, D, M

Greenfield site at

roadside in small

roadside hamlet.

Although only ten units,

these would be very

visible within this small

settlement. Design of

the units should be very

sensitive to their setting.

L

Very unlikely to have a

notable impact given

the scale of

development.

-

S-T, D, M

Site lies adjacent to he

Afon Tryweryn. Data


SA Objectives

To promote

mechanisms for waste

minimisation,

increased re-use and

recycling

Improve the quantity

and quality of publicly

open space

Land adjacent Y

Rhos - Llanegryn

Dysynni. There is no

River Quality data for

this watercourse

available on the EA’s

online interactive

mapping. However, it is

unlikely that a housing

allocation of this size

would have any adverse

effects. SuDS should

be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

To provide housing to

meet local need +

To promote improved

access to local

services and

Site would remove a

small agricultural field. It

is not known if new

open space would be

provided in the

development.

M-T, D, L

8 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land nr Clydfan,

Bryncrug

Dysynni known as the

Fathew. Data from the

EA website identify this

as being of GQA grade

A (biology) and B

(chemistry). It is unlikely

that a housing allocation

of this size would have

any adverse effects at

this distance. SuDS

should be promoted.

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L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small agricultural field. It

is not known if new

open space would be

provided in the

development. Bryncrug

contains a large area of

playing field and

recreational space.

+

M-T, D, L

8 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land nr Bennar

Terrace,

Dolwyddelan

Lledr. Data from the EA

website identifies this as

being of GQA grade A

(biology) and B

(chemistry). It is

possible that

construction activities

may affect the river.

This should be

prevented using

appropriate construction

environmental

management

techniques. SuDS

should be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small area of scrub. It is

not known if new open

space would be

provided in the

development.

+

M-T, D, L

6 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land nr Ganllwyd

Primary School,

Ganllwyd

is also an SAC and a

SSSI. Data from the EA

website identifies this as

being of GQA Grade A

(biology) and B

(chemistry). It is

possible that

construction activities

may affect the river.

This should be

prevented using

appropriate construction

environmental

management

techniques. SuDS

should be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small agricultural field. It

is not known if new

open space would be

provided in the

development.

+

M-T, D, L

5 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land adjacent to

Glenville, Tal-y-Bont

Ysgethin. There is no

River Quality data for

this watercourse

available on the EA’s

online interactive

mapping. However, it is

unlikely that a housing

allocation of this size

and this distance away

would have any

adverse effects. SuDS

should be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small agricultural field. It

is not known if new

open space would be

provided in the

development.

+

M-T, D, L

8 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land nr Llwyn-y-

Gadair, Llanfair

the site.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove part

of an agricultural field. It

is not known if new

open space would be

provided in the

development.

+

M-T, D, L

8 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land nr Maes y

Waen, Penmachno

Machno. There is no

River Quality data for

this watercourse

available on the EA’s

online interactive

mapping. However, it is

unlikely that a housing

allocation of this size

and this distance away

would have any adverse

effects. SuDS should

be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small agricultural field. It

is not known if new

open space would be

provided in the

development.

+

M-T, D, L

5 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land near Rhys

Terrace, Pennal

Pennal. There is no

River Quality data for

this watercourse

available on the EA’s

online interactive

mapping. However, it is

unlikely that a housing

allocation of this size

and this distance away

would have any adverse

effects. SuDS should

be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

-

l-T, D, M

The site would remove

an open grassed area

within the village

adjacent to a

playground. This may

not officially be a public

space but it may be

used informally.

+

M-T, D, L

6 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land adjacent

Roualeyn Nursery,

Trefriw

River Quality data for

this watercourse

available on the EA’s

online interactive

mapping. However, it is

unlikely that a housing

allocation of this size

and this distance away

would have any adverse

effects. SuDS should

be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small field. It is not

known if new open

space would be

provided in the

development.

+

M-T, D, L

8 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M

Land behind Ysgol

Bro Tryweryn,

Frongoch

from the EA website

identify this as being of

GQA grade A (biology)

and B (chemistry). It is

possible that

construction activities

may affect the river.

This should be

prevented using

appropriate construction

environmental

management

techniques. SuDS

should be promoted.

L

Low levels of

development are

unlikely to result in

significant effects.

However, new housing

would produce more

waste cumulatively.

M

Site would remove a

small field. It is not

known if new open

space would be

provided in the

development.

+

M-T, D, L

10 units are proposed to

meet local needs.

These would be

affordable housing.

+

L-T, I, M


SA Objectives

amenities for all

To promote safe,

healthy and

sustainable

communities

To promote and

facilitate improved

community

involvement

To promote good

transport links to

support the local

economy

To aid the creation of

local employment

opportunities and

businesses related to

National Park

purposes

Land adjacent Y

Rhos - Llanegryn

Llanegryn is described

as having one or more

key local facilities or

having a very strong

relationship with a

settlement which has

these key local facilities

(Tywyn). It also includes

a range of additional

community facilities.

+

L-T, I, L

There is a signed

national cycle network

route adjacent to the

site and a network of

rights of way locally.

These provide

opportunities for

exercise and

sustainable travel. The

safety of the site will

depend upon the level

of safety by design

incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road, cycle and

bus routes.

L

The extension to the

housing development

boundary would not

provide employment

Land nr Clydfan,

Bryncrug

Bryncrug is described

as having one or more

key local facilities or

having a very strong

relationship with a

settlement which has

these key local facilities

(Tywyn). It also includes

a range of additional

community facilities.

+

L-T, I, L

There is a signed

national cycle network

route through the village

and a network of rights

of way locally. These,

together with the

existing paying fields,

provide opportunities for

exercise and

sustainable travel. The

safety of the site will

depend upon the level

of safety by design

incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road, cycle and

bus routes.

L

The extension to the

housing development

boundary would not

provide employment

Land nr Bennar

Terrace,

Dolwyddelan

Dolwyddelan is

described as having

one or more key local

facilities or having a

very strong relationship

with a settlement which

has these key local

facilities (Betws-y-

Coed). It also includes a

range of additional

community facilities.

+

L-T, I, L

The site is in a rural

location at the edge of

the village. A network of

rights of way exist

locally with access to

neighbouring

countryside. The safety

of the site will depend

upon the level of safety

by design incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road, rail and

bus routes providing

access to Betws-y-Coed

and Blaenau Ffestiniog.

L

The extension to the

housing development

boundary would not

provide employment

Land nr Ganllwyd

Primary School,

Ganllwyd

Ganllwyd is a very small

settlement described as

having one or more key

local facilities or having

a very strong

relationship with a

settlement which has

these key local facilities

(Dolgellau). It also

includes a range of

additional community

facilities.

+/-

L-T, I, M

The site is in a rural

location adjacent to a

busy main trunk road

which may pose a

safety risk to residents.

A network of rights of

way exist locally with

access to neighbouring

countryside.

L

No significant effects

are likely.

+

M-T, I, L

Close to main northsouth

road and bus

routes to Dolgellau.

L

The extension to the

housing development

boundary would not

provide employment

Land adjacent to

Glenville, Tal-y-Bont

Tal-y-Bont is a very

small settlement

described as having

one or more key local

facilities or having a

very strong relationship

with a settlement which

has these key local

facilities (Barmouth). It

also includes a range of

additional community

facilities.

+

L-T, I, L

There is a signed

national cycle network

route near to the site

and a network of rights

of way locally. These

provide opportunities for

exercise and

sustainable travel. The

safety of the site will

depend upon the level

of safety by design

incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road, rail and

bus routes providing

access to Barmouth.

L

The extension to the

housing development

boundary would not

provide employment

Land nr Llwyn-y-

Gadair, Llanfair

Llanfair is a very small

settlement described as

having one or more key

local facilities or having

a very strong

relationship with a

settlement which has

these key local facilities

(Harlech/Barmouth). It

also includes a range of

additional community

facilities.

+

L-T, I, L

There is a signed

national cycle network

route near to the site

and a network of rights

of way locally. These

provide opportunities for

exercise and

sustainable travel. The

safety of the site will

depend upon the level

of safety by design

incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road, rail (2km

approx) and bus routes

providing access to

Barmouth and Harlech.

L

The extension to the

housing development

boundary would not

provide employment

Land nr Maes y

Waen, Penmachno

Penmachno is a very

small settlement

described as having

one or more key local

facilities or having a

very strong relationship

with a settlement which

has these key local

facilities (Betws-y-

Coed). It also includes a

range of additional

community facilities.

+

L-T, I, L

The site is in a rural

location at the edge of

the village. A network of

rights of way exist

locally with access to

neighbouring

countryside. The safety

of the site will depend

upon the level of safety

by design incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to A5 and bus

routes to Betws-y-Coed.

L

The extension to the

housing development

boundary would not

provide employment

Land near Rhys

Terrace, Pennal

Pennal is a very small

settlement described as

having one or more key

local facilities or having

a very strong

relationship with a

settlement which has

these key local facilities

(Machynlleth). It also

includes a range of

additional community

facilities.

+

L-T, I, L

There is a signed

national cycle network

route adjacent to the

site and a network of

rights of way locally.

These provide

opportunities for

exercise and

sustainable travel. The

safety of the site will

depend upon the level

of safety by design

incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road, cycle and

bus routes.

L

The extension to the

housing development

boundary would not

provide employment

Land adjacent

Roualeyn Nursery,

Trefriw

Trefriw is a very small

settlement described as

having one or more key

local facilities or having

a very strong

relationship with a

settlement which has

these key local facilities

(Llanrwst). It also

includes a range of

additional community

facilities.

+

L-T, I, L

The site is in a rural

location at the edge of

the village. A network of

rights of way exist

locally with access to

neighbouring

countryside. The safety

of the site will depend

upon the level of safety

by design incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road and bus

routes. Station in

nearby Llanrwst.

L

The extension to the

housing development

boundary would not

provide employment

Land behind Ysgol

Bro Tryweryn,

Frongoch

Frongoch is a very

small settlement

described as having

one or more key local

facilities or having a

very strong relationship

with a settlement which

has these key local

facilities (Y Bala). It also

includes a range of

additional community

facilities.

M

The site is in a rural

location at the edge of

the hamlet. A small

number of rights of way

exist locally. The safety

of the site will depend

upon the level of safety

by design incorporated.

L

No significant effects

are likely.

+

M-T, I, L

Close to road and bus

routes to nearby Y Bala.

L

The extension to the

housing development

boundary would not

provide employment

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SA Objectives

Potential For

Cumulative Effects

Land adjacent Y

Rhos - Llanegryn

Land nr Clydfan,

Bryncrug

Land nr Bennar

Terrace,

Dolwyddelan

Land nr Ganllwyd

Primary School,

Ganllwyd

Land adjacent to

Glenville, Tal-y-Bont

Land nr Llwyn-y-

Gadair, Llanfair

Land nr Maes y

Waen, Penmachno

Land near Rhys

Terrace, Pennal

Land adjacent

Roualeyn Nursery,

Trefriw

Land behind Ysgol

Bro Tryweryn,

Frongoch

opportunities. opportunities. opportunities. opportunities. opportunities. opportunities. opportunities. opportunities. opportunities. opportunities.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area

although potential for

very minor erosion of

historic landscape

together with other

developments in the

valley.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area

although potential for

very minor erosion of

historic landscape

together with other

developments in the

valley.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with

potential to cumulatively

erode the character of

the local landscape and

townscape.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with

potential to cumulatively

erode the character of

the local historic

landscape and

townscape together

with other

developments.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area

although potential for

very minor erosion of

historic landscape

together with other

developments in the

area.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area

although potential for

very minor erosion of

landscape together with

other developments in

the area.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with no

significant predicted

cumulative effects in the

immediate area.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Small-scale

development with

potential to cumulatively

erode the character of

the local landscape and

townscape.

Potential for very minor

cumulative contributions

to surface run-off,

vehicle emissions and

waste production.

Summary

Small site on settlement

boundary and

reasonably close to

facilities in Llanegryn

and nearby Tywyn.

No significant

environmental

constraints.

Site would be locally

visible so sensitive

design should be

promoted to avoid

adverse townscape

effects.

Small site on settlement

boundary and

reasonably close to

facilities in Bryncrug

and nearby Tywyn.

No significant

environmental

constraints.

Site would be locally

visible so sensitive

design should be

promoted to avoid

adverse townscape

effects.

Small site in secluded

valley location adjacent

to a river. Possible

adverse effects upon

flood risk, water quality

and ecology.

Near to railway station

with access to larger

settlements in locality

for

employment/services.

Small site in small

roadside settlement with

good access to services

in Dolgellau.

Has potential to affect

local townscape and

landscape.

Adjacent to floodplain

and numerous

environmental

designations.

Area has historic

interest.

Possible safe access

issues.

Small site on settlement

boundary and

reasonably close to

facilities in the village.

Good public transport

routes to services in

Barmouth.

Has potential to affect

local townscape and

landscape.

Ecological designations

nearby.

Small site on settlement

boundary and

reasonably close to

facilities in the village.

Public transport routes

to services in Harlech

and Barmouth.

No significant

environmental

constraints.

Site would be locally

visible so sensitive

design should be

promoted to avoid

adverse townscape

effects.

Small site on settlement

boundary and

reasonably close to

facilities in the village.

Public transport routes

to services in Betws-y-

Coed.

No significant

environmental

constraints.

Small site within village

on an open grassed

area. This may

represent a loss of

informal open space.

Close to facilities in the

village and public

transport routes.

No significant

environmental

constraints.

Site would be locally

visible so sensitive

design should be

promoted to avoid

adverse townscape

effects.

Small site on field

adjacent to nursery.

Close to facilities in the

village and public

transport.

No significant

environmental

constraints.

Site would be locally

visible so sensitive

design should be

promoted to avoid

adverse townscape

effects.

Small site adjacent to

school, road and river

confluence.

Good access to

services and

employment in Y Bala.

Possible adverse

effects upon flood risk,

water quality and

ecology.

Has potential to affect

local townscape and

landscape.

Site is also adjacent to

a sewage works which

may lead to odour

nuisance to new

residents.

Recommendations

Encourage use of SuDS

to mitigate surface runoff.

Promote sensitive

design.

Recommend safety by

design principles.

Encourage use of SuDS

to mitigate surface runoff.

Promote sensitive

design.

Recommend safety by

design principles.

Undertake more

detailed flood risk

assessment and

appropriate mitigation in

conjunction with EA.

Avoid floodplain with

site layout.

Encourage use of

SuDS.

Undertake ecological

surveys prior to

development and

Undertake more

detailed flood risk

assessment and

appropriate mitigation in

conjunction with EA.

Avoid floodplain with

site layout.

Encourage use of

SuDS.

Undertake ecological

surveys prior to

development and

Undertake ecological

surveys prior to

development and

appropriate mitigation.

Promote sensitive

design and heritage

assessment.

Recommend safety by

design principles

including road access.

Encourage use of SuDS

Promote sensitive

design.

Recommend safety by

design principles.

Promote sensitive

design.

Recommend safety by

design principles.

Encourage use of

SuDS.

Promote sensitive

design.

Recommend safety by

design principles.

Encourage use of

SuDS.

Promote sensitive

design.

Recommend safety by

design principles.

Encourage use of

SuDS.

Undertake more

detailed flood risk

assessment and

appropriate mitigation in

conjunction with EA.

Avoid floodplain with

site layout.

Encourage use of

SuDS.

Undertake ecological

surveys prior to

development and

Local Development Plan—Strategic Environmental Assessment and Sustainability Appraisal

Hyder Consulting (UK) Limited-2212959 Page 9

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SA Objectives

Land adjacent Y

Rhos - Llanegryn

Land nr Clydfan,

Bryncrug

Land nr Bennar

Terrace,

Dolwyddelan

appropriate mitigation.

Land nr Ganllwyd

Primary School,

Ganllwyd

appropriate mitigation.

Land adjacent to

Glenville, Tal-y-Bont

Land nr Llwyn-y-

Gadair, Llanfair

Land nr Maes y

Waen, Penmachno

Land near Rhys

Terrace, Pennal

Land adjacent

Roualeyn Nursery,

Trefriw

Land behind Ysgol

Bro Tryweryn,

Frongoch

appropriate mitigation.

Implement construction

environmental

management to protect

river.

Implement construction

environmental

management to protect

river.

Implement construction

environmental

management to protect

river.

Promote sensitive

design.

Recommend safety by

design principles.

Promote sensitive

design and heritage

assessment.

Recommend safety by

design principles

including road access.

Promote sensitive

design.

Recommend safety by

design principles

including road access.

Local Development Plan—Strategic Environmental Assessment and Sustainability Appraisal

Hyder Consulting (UK) Limited-2212959 Page 10

k:\projects\nh51128-snowdonia-sea\f-reports\017-nh51128-nhr-01-reservesitesassessment-f.docx

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