Hillingdon SuDS Design & Evaluation Guide

Outline Design
8.3.1 Information to support Outline Design
Limited information may be available at
Concept Design Stage and must be
augmented to provide a full understanding of
the site at Outline Design.
The following information should be collated
to evaluate site constraints and inform SuDS
design:
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Existing services, including location and
depth. These can influence layout, depth
and placement of SuDS features.
Planning conditions, for example SuDS in
‘conservation areas’, which may influence
choice of SuDS components and the use
of materials.
Ownership and future management of
SuDS will influence component selection,
typically adoption by Local Authorities
and especially Highways Departments.
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Consents affecting off-site and on-site
elements of the SuDS.
Confirmation of the method of discharge:
infiltration or runoff to a watercourse or
sewer and impact of runoff volumes on
the site.
Confirmation of ownership and maintenance
arrangements would be subject to a planning
condition.
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A biodiversity raingarden at Renfrew Close,
Newham with cornfield annuals alongside
meadow flora for the future.
London Borough of Hillingdon SuDS D & E Guide
© 2018 McCloy Consulting & Robert Bray Associates