What your FRA package includes
A complete Flood Risk Assessment typically includes:
- Flood zone classification
- Environment Agency data review
- Surface‑water flood risk analysis
- Groundwater and drainage assessment
- Site levels and topography review
- Flood depth and hazard mapping
- Sequential and exception test (if required)
- Mitigation strategy and resilience measures
- Safe access and egress assessment
- Drainage and runoff recommendations
- Full FRA report for planning submission
All reports are compliant with NPPF, Environment Agency guidance, and local policy.
Our process
A clear, structured workflow designed to satisfy planning requirements:
- Site assessment We review flood maps, EA data, and local drainage constraints.
- Risk analysis We assess fluvial, pluvial, groundwater, and surface‑water risks.
- Mitigation strategy We recommend measures such as floor levels, drainage, and resilience.
- FRA report preparation A full planning‑ready report is produced with all required evidence.
- Submission & liaison We provide the FRA and submit it directly with your planning application.
Fees
Typical fees start from:
- £295–£495 for small residential extensions
- £495–£895 for new builds or conversions
- £895+ for multi‑unit or complex sites
A fixed quote is provided after reviewing your site location and drawings.
Borough‑specific considerations
Flood risk requirements vary significantly between councils. We specialise in:
- London boroughs — surface‑water risk, basements, drainage constraints
- Kensington & Chelsea — strict basement policies and flood resilience
- Westminster — tidal and surface‑water considerations
- Camden — groundwater and drainage capacity
- Lancashire authorities — river proximity, rural drainage, runoff impacts
- Critical drainage areas — mandatory mitigation and runoff controls
Your FRA is tailored to your borough’s specific policy requirements.
Common mistakes to avoid
Applications are often delayed or refused when:
- No FRA is submitted for a flood‑zone site
- The FRA is generic or lacks site‑specific data
- Mitigation measures are missing or unrealistic
- Basement proposals ignore groundwater risk
- Drainage impacts are not addressed
- Access and egress routes are not assessed
Planning World ensures your FRA is detailed, compliant, and planning‑ready.
