Drainage Strategy & Design

Local Planning Authorities require drainage strategies demonstrating sustainable surface water management and adequate foul water disposal before granting permission. Professional design that addresses policy requirements expedites approval.

Approved Document H sets minimum standards for drainage design. Our designs meet these requirements and provide documentation that supports Building Control submissions.

If sewers are to be adopted under Section 104 agreements, designs must meet Sewers for Adoption standards. We know what adoption teams require and deliver designs that pass technical approval without endless resubmission cycles.

Inadequate drainage design causes construction delays, cost overruns, and contractor claims. Comprehensive design with clear documentation allows accurate pricing and efficient construction.

Under-designed drainage causes flooding and environmental problems. Over-designed drainage wastes money. We optimise designs to meet requirements cost-effectively while ensuring long-term performance.

Our designs aren’t academic exercises. WCI Group installs drainage daily – we know what contractors encounter on site, what ground conditions allow and what actually works in practice. This knowledge eliminates unbuildable designs that look elegant on paper but create construction nightmares.

We’ve successfully secured hundreds of Section 104/102 adoptions across multiple water company areas. We understand what adoption teams require and design schemes that achieve approval efficiently, avoiding the resubmission cycles that delay projects and frustrate developers.

When WCI Consulting Engineers design drainage, WCI Project Engineers can construct it and WCI Service Engineers can maintain it long-term. This vertical integration means complete accountability – no finger-pointing between designer and contractor when challenges arise.

We design drainage that’s not just built correctly but maintained efficiently. Access for jetting, rodding and desludging isn’t an afterthought, it’s integral to our design

Integration with your design team providing drainage solutions that complement architectural vision while meeting regulatory requirements. We deliver drawings that support your Building Regulations submissions and coordinate effectively with structural and M&E engineers.

From single-plot developments to strategic sites, we provide drainage design that secures planning approval, achieves water company adoption, and delivers construction certainty. Our designs support accurate contractor pricing and efficient construction.

Industrial estates, logistics facilities, retail developments, and infrastructure projects requiring professional drainage design for planning, procurement and construction phases.

Local authorities, housing associations, and public bodies requiring drainage design services under frameworks or for specific projects, with appropriate quality assurance and professional indemnity.

Sub-consultant drainage design services for design-build contracts, providing technical expertise that complements your construction capabilities.