Flood Risk, Drainage & Environmental Services
Complete flood risk and drainage services — S23 consents, EA permits, detailed SuDS design, condition discharge and Construction SWMPs.
Comprehensive Flood Risk & Drainage Services
A complete end-to-end service covering every flood risk and drainage requirement from initial planning through to detailed design, condition discharge and beyond.
Flood Risk Assessments
Planning-ready FRAs for all flood zones. All sources assessed including fluvial, tidal, surface water, groundwater and sewer flooding. Flood Consequence Assessments for Wales.
- Flood Zones 1, 2 and 3 — all England and Wales LPAs
- Sequential and Exception Test support
- Climate change assessment to EA guidance
- Flood Consequence Assessments (TAN15 Wales)
Detailed SuDS & Drainage Design
Full detailed sustainable drainage design for condition discharge including hydraulic calculations, AutoCAD drawings and construction specifications.
- Attenuation sizing (Flow+ / MicroDrainage)
- Rain gardens, swales, permeable paving, filter drains
- Geocellular and attenuation tank design
- Drainage layout drawings and long sections
Planning Condition Discharge
Complete drainage and flood risk condition discharge packages for pre-commencement and pre-occupation conditions, including technical responses to LLFA objections.
- LLFA technical objection responses
- SuDS Maintenance & Management Plans
- SuDS compliance statements
- Revised calculations and drawings
S23 & Environmental Permits
We manage the complete application process for S23 Ordinary Watercourse Consents and EA Flood Risk Activity Permits for works on or near watercourses.
- S23 OWC applications to the LLFA
- EA Flood Risk Activity Permit applications
- Supporting technical documentation
- Application management and liaison
Construction Surface Water Management Plans
Detailed CSWMPs to manage surface water and control silt pollution on construction sites, satisfying planning conditions and protecting the environment.
- Site-specific silt runoff mitigation
- Silt fences, detention basins, sediment traps
- Regulatory compliance with EA and planning conditions
- Protection from fines and enforcement
Drainage & SuDS Maintenance Plans
Long-term SuDS Maintenance and Management Plans for planning condition discharge, ensuring your drainage systems continue operating effectively over time.
- Maintenance schedules for all SuDS features
- Adoption and responsible body confirmation
- Planning condition compliance
- Long-term sustainability assurance
Trusted by Developers, Architects & Planning Consultants
"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 — professional and produced reports within a good time frame."
"The service received was great and at a competitive cost. We were granted planning after first submission."
"Fast, technically thorough and understood exactly what the LLFA needed. Approved without any queries. Would highly recommend for any flood risk or drainage work."
All Services & Resources
Everything you need for flood risk, drainage and environmental planning consultancy across England and Wales.
Flood Risk
Drainage
Other Services
Areas Covered
Frequently Asked Questions
Trusted by Developers, Architects & Planning Consultants
"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 — professional and produced reports within a good time frame."
"The service received was great and at a competitive cost. We were granted planning after first submission."
"Fast, technically thorough and understood exactly what the LLFA needed. Approved without any queries. Highly recommended for any flood risk or drainage work."
Get a Free Quote
Free, no-obligation fixed-fee quote within 24 hours. All flood zones and LLFAs covered.
Get a Free QuoteOr contact us directly: 07826 705389 •