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01608 510 121

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admin@rida-reports.co.uk

Drainage Consultants for Planning & Development

RIDA provides surface water and foul drainage consultancy for homeowners, architects and developers across the UK. We prepare drainage reports, calculations and drawings for planning applications and development projects.
Send us your plans and any drainage comments from the council. We’ll review the requirements and provide a quote for the work

steve Morley

MDA Wirral Ltd

“Always efficient, responsive and reliable working with tight deadlines, highly recommended.”
Flood Risk Assessment and Drainage Strategies Services by RIDA Reports
Flood risk assessment for housing development near water channel

21+ Years

UK Drainage Consultants

Drainage advice for your project

You may need drainage information for a new planning application, a response to a planning condition or design work for an approved development.
We review the proposed layout, available site information and the requirements raised by the council. This helps identify the reports, calculations and drawings needed for your project.
If you have received a request from the planning officer, send us the wording. You do not need to choose a service or package before contacting us.

Our drainage services

Drainage strategies

Reports setting out how surface water and foul water will be managed on a proposed development, with supporting information for the planning submission.

Drainage design

Drainage layouts and calculations developed around the proposed buildings, site levels and discharge arrangements.

SuDS design

Design of sustainable drainage features to manage runoff from roofs, roads and other hard surfaces within the available space.

Foul water drainage design

Layouts and calculations for wastewater drainage, taking account of site levels, expected flows and connection arrangements.

What your appointment covers

Your quotation will identify the reports, calculations and drawings included in the work.

The documents needed for a planning application can differ from those required for construction. We will set out the design stage covered by the appointment and identify any missing site information needed for the work.
Send any existing surveys, drainage reports or test results with your enquiry so we can review what is already available.

If the council has requested flood information, see our flood risk assessment for planning service. For advice on the flood-risk scope before commissioning reports, speak to our flood risk assessment consultants

Professional drainage consultancy helping architects and developers meet planning requirements

Drainage advice for your project

If you do not have all of this information, send what you have. We can identify what else is needed.

Email your plans to admin@rida-reports.co.uk or use the enquiry form below.

Please send:

Questions before appointing us

Send us the condition wording and approved plans. We can review the drainage information requested and quote for the work needed to address it.

A drainage strategy sets out the proposed approach to managing water on the site. Drainage design develops the layouts and calculations for the required project stage. Send us your plans and any council comments so we can identify the service you need.

The fee reflects the size of the task, the available site information and the documents required. We quote for your project after reviewing the information you send.

Tell us your target date when you enquire. We can check the required work and our availability before you appoint us.

We do not carry out soakaway or infiltration testing. Where infiltration drainage is proposed, we can use suitable test results supplied by a separate testing contractor.

Send us its comments. We can review them against the original appointment and identify whether further assessment, revised drawings or other work is needed.

Blog

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New surface water depth and climate change datasets are now live on the Flood

NPPF update August 2026

The **17 August 2026 NPPF update** introduces important changes for flood risk, drainage and

Request a Drainage Quote

Tell us about your site, proposed development and the drainage information you need.

Use the form or email your plans to admin@rida-reports.co.uk.

Call 01608 510 121 to discuss your project.

Request a Drainage Quote

Tell us about your site, proposed development and the drainage information you need.

Use the form or email your plans to admin@rida-reports.co.uk.

Call 01608 510 121 to discuss your project

Send your project details