Hillingdon SuDS Design & Evaluation Guide

Detailed Design
9.8 Amenity
Confirming integrated SuDS design
Amenity is one of the four pillars of SuDS
design and perhaps open to the most
interpretation and judgement.
Amenity focuses on the usefulness and
aesthetic elements of SuDS design
associated with features ‘at or near the
surface’, and considers both multifunctionality
and visual quality.
The amenity value of SuDS will have been
considered at both Concept and Outline
design stages but some finer aspects of value
will be enhanced by detail design at stage.
An evaluation of the successful integration of
amenity uses the design criteria set out in
Concept Design.
Informal play, through integrated design.
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9.8.1 Legibility
Understanding how the SuDS design
functions is important both to everyday users
of the SuDS environment and those who look
after it.
An exercise in following each management
train from source to outfall and imagining
how the scheme presents itself to the visitor
should highlight any problems with legibility.
Considerations will include:
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How is rainfall collected?
What ‘source control’ techniques have
been used and how they can be accessed
and maintained?
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How does runoff travel from where it has
been collected onwards through ‘source
control’ components to each part of the
site. This is conveyance?
Where is runoff stored and cleaned along
the management train in ‘site controls’
recognising that these functions may
occur within permeable construction?
Where are flow controls are located?
Are overflow and exceedance routes clear
and understandable?
Is the outfall obvious, accessible and
understandable?
London Borough of Hillingdon SuDS D & E Guide
© 2018 McCloy Consulting & Robert Bray Associates