Embedded Files
What is a Drainage Strategy or SuDS Report?
Drainage strategies and SuDS (Sustainable Drainage Systems) reports are a vital part of most planning applications in England and Wales, particularly where surface water runoff must be managed on-site. Whether requested by Local Planning Authorities, Lead Local Flood Authorities (LLFAs), or Building Control, our reports are fully compliant, clearly presented, and supported by detailed calculations and modelling.
Flood Risk Consult produces site-specific drainage reports using industry-standard tools such as MicroDrainage and InfoDrainage, ensuring accuracy, compliance, and planning approval confidence.
End-to-End Drainage Design Services
We can take your drainage scheme from concept through to construction — offering a complete design and coordination service:
Drainage Strategy Reports (pre-planning / outline)
Conceptual & Preliminary Layouts for design team coordination
Detailed Drainage Design including network sizing, SuDS features, and modelling
Construction Drawings, Specifications & Support during build phase
Technical Responses to LLFA, EA, Building Control or Planning Officer comments
Our service includes multidisciplinary coordination of external works — integrating drainage design with highways, levels, utilities, and landscape where needed. We also liaise directly with:
Water & Wastewater Utility Companies (Statutory Undertakers)
Highways Authorities and Section 106/104/38/278 bodies
Local Planning Authorities and Building Control teams
Site engineers and contractors during construction delivery
What’s Included in Our Reports?
Our drainage and SuDS design packages typically include the following information, for submission for approval:
Greenfield/Brownfield runoff rate assessment
Attenuation sizing and discharge control strategy
Drainage layout plans (MicroDrainage / Civil 3D)
SuDS proposals with maintenance plans and design justification
EA/LLFA/Building Control–ready submission pack
Site-specific modelling and storage volume analysis
SuDS & Drainage Features We Design
We regularly design and size the following features:
Attenuation basins and balancing ponds
Constructed wetlands and reed beds
Geocellular storage systems (crate tanks)
Porous asphalt, block paving, and resin-bound surfaces
Filter drains and infiltration trenches
Swales, ditches, and bio-retention features
Soakaways (including BRE365 assessments)
Flow controls and orifice plates
Petrol interceptors and treatment trains
Who Needs a Drainage Strategy or SuDS Design?
Our drainage design services are ideal for:
Developers preparing for outline or full planning
Architects requiring compliant layout integration
Planning consultants needing fast technical input
Contractors requiring construction-ready drainage detail
Self-builders navigating Building Regs and discharge approvals
With over 20 years of highways and drainage experience, Flood Risk Consult offers technical expertise, planning insight, and delivery-focused support. Our designs are fast, accurate, and fully tailored to your development needs — from first concept to final as-built.
We understand the time pressures on developers, the expectations of approving authorities, and the importance of collaborative design. Let us help you unlock your site with compliant, buildable drainage design.
Page updated
Google Sites
Report abuse