Flood Risk Assessments & Drainage Strategies in Birmingham
Independent flood risk consultants serving Birmingham and surrounding areas. Planning-ready FRAs and SuDS drainage strategies from £295, delivered within 3–5 working days.
Flood Risk Assessments in Birmingham
Flood Risk Environmental provides Flood Risk Assessments, SuDS drainage strategies and detailed drainage design for planning applications across Birmingham and the wider West Midlands region.
Birmingham and the wider West Midlands has significant flood risk from the River Tame and its tributaries, as well as widespread surface water flood risk across many urban areas. Many brownfield regeneration sites in Birmingham require detailed drainage strategies to satisfy Birmingham City Council's SuDS requirements.
Our reports are prepared by a qualified consultant with over 17 years' experience and written specifically to satisfy the requirements of Birmingham City Council, Solihull MBC, Coventry City Council or whichever LLFA has jurisdiction over your site.
Services in Birmingham
- Flood Risk Assessments — from £295
- SuDS drainage strategies for planning
- Detailed SuDS and drainage design
- LLFA SuDS proforma completion (Birmingham City Council)
- Sequential and Exception Test submissions
- S23 Ordinary Watercourse Consent
- EA Flood Risk Activity Permit applications
- LLFA drainage objection responses
Flood risk in Birmingham
As one of the most heavily urbanised catchments in the country, Birmingham's flood risk is dominated by surface water. Extensive impermeable cover and an ageing, often combined, sewer network mean intense rainfall quickly overwhelms drainage and floods streets, underpasses and low-lying plots — well away from any river. Almost every FRA in the city has a strong surface water and drainage component.
Fluvial risk is concentrated along the valleys of the Rea, Tame and Cole. Many of Birmingham's smaller watercourses are historically culverted beneath the city, so development regularly encounters ordinary watercourses that require Land Drainage Consent (an S23 consent) and careful attention to flow routing and betterment.
Birmingham City Council is the Lead Local Flood Authority and consultee on surface water drainage. We design SuDS-led strategies that discharge at greenfield or betterment rates and satisfy the council's drainage standards, alongside the FRA.
Local flood facts — Birmingham
- Main watercourses: River Tame, River Rea and River Cole
- Lead Local Flood Authority: Birmingham City Council
- Main flood sources: Surface water (dominant) and localised fluvial
- Key FRA consideration: Urban surface water flooding and culverted ordinary watercourses
When Do You Need a Flood Risk Assessment in Birmingham?
Planning applications in Birmingham require a Flood Risk Assessment in the following circumstances:
Development in Flood Zone 2 or 3
Any development in London's Flood Zone 2 or 3 areas requires an FRA. The LLFA will object to applications in flood risk areas without a robust FRA and drainage strategy.
Major Applications (10+ dwellings)
Major planning applications in Birmingham — 10 or more dwellings, sites over 0.5ha, or non-residential floorspace over 1,000m² — require an FRA in any flood zone.
Sites Over 1 Hectare in FZ1
Large sites in Flood Zone 1 may require an FRA if over 1 hectare, to demonstrate that drainage is adequate and runoff won't increase downstream flood risk.
LLFA Drainage Conditions
Where Birmingham City Council has imposed a pre-commencement drainage condition, we prepare the detailed SuDS design package needed to satisfy the condition and secure approval.
LLFA Drainage Objections
If your Birmingham planning application has received a flood risk or drainage objection from the LLFA, we can review it and prepare a technical response to resolve it fast.
Change of Use
Converting commercial buildings to residential use in a flood risk area in Birmingham typically requires a new Flood Risk Assessment to confirm future occupiers will be safe.
Frequently Asked Questions
Trusted by Developers, Architects & Planning Consultants
★★★★★ 5.0 from 6 Google reviews
“Antony was great to work with when we needed a Flood Risk Assessment and Emergency Flood Plan. As an architect I would definitely use FRE Consultants again… his report went a good way in helping us get planning permission on a tricky site. Highly recommended.”
“Antony carried out my Flood Risk Assessment and has done a great job. My architect commented that the report was professionally drafted and very easy to follow. I highly recommend Antony's services.”
“Antony carried out a SuDS report for one of our projects and provided an excellent service throughout — quick to respond, clear communication, and a thorough, detailed report within the agreed timescale. We will certainly be using his services on all future projects!”
“Extremely helpful, prompt and friendly service carrying out a Flood Risk Assessment for a home project that required planning permission in a flood risk area… the price was reasonable and given up-front, and the final report was highly professional and exactly as required.”
“I had an extension completed on my house and needed a Flood Risk Assessment for planning. The service received was great and at a competitive cost. We were granted planning after first submission.”
“Nice and quick service. Recommend A++”
Need a Flood Risk Assessment in Birmingham?
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