What We Offer
Our Services
Specialist civil engineering consultancy for drainage, flood risk, SuDS design, and infrastructure — delivered with technical precision and clear communication.
Service 01
Flood Risk Assessment
A Flood Risk Assessment (FRA) is required for most planning applications on sites within Flood Zones 2 or 3, or for sites over 1 hectare in Flood Zone 1. CMB Civil Consulting produces clearly written, technically rigorous FRAs that satisfy Environment Agency and local planning authority requirements.
- — Screening-level assessments for early feasibility
- — Full FRAs to NPPF and PPG requirements
- — Sequential and Exception Test support
- — Flood zone boundary clarification
- — Responses to EA and LPA technical queries
- — Climate change allowance assessments
Typical Clients
- · Residential developers
- · Commercial landowners
- · Planning agents and architects
- · Self-build homeowners
Deliverables
- · FRA report (Word / PDF)
- · Supporting flood risk drawings
- · Drainage strategy summary
Service 02
Drainage Design
Sound drainage design is fundamental to any development project. CMB Civil Consulting provides detailed drainage strategies and full design packages for both surface water and foul drainage, from initial concept through to construction-ready drawings and statutory adoption.
- — Outline and detailed drainage strategies
- — Hydraulic calculations and pipe sizing
- — Section 104 (sewer adoption) applications
- — Section 185 (highway drain adoption)
- — Drainage adoption drawings to water company standards
- — Micro-drainage and InfoDrainage modelling
Typical Projects
- · Housing developments (1–500+ units)
- · Commercial and industrial sites
- · Mixed-use regeneration schemes
- · School and public buildings
Software Used
- · Micro-drainage
- · InfoDrainage
- · AutoCAD / Civil 3D
Service 03
Sustainable Drainage Systems (SuDS)
SuDS are now a planning requirement for most new developments in England and Wales. CMB Civil Consulting designs SuDS schemes that balance water quantity management, water quality treatment, biodiversity enhancement, and amenity — satisfying LLFA requirements and the SuDS Manual.
- — Greenfield and brownfield runoff rate calculations
- — Attenuation storage design (basins, tanks, geocellular)
- — Permeable paving, swales, rain gardens, bioretention
- — Water quality treatment train design
- — SuDS management and maintenance plans
- — LLFA pre-application and formal consultation
Key Standards
- · CIRIA SuDS Manual (C753)
- · NPPF / NPPG
- · BS EN ISO 10649 (geocellular)
- · LLFA local requirements
Ready to Discuss Your Project?
Send us a brief project description and we’ll come back with a clear, competitive fee proposal — usually within 48 hours.