Design suites for UK drainage systems.

Browser-based engineering suites: traceable calculations, standards-cited PDF reports, and Manning.

Live in beta

Sudscope

SuDS & stormwater management, appraisal to adoption.

41 tools across six design stages: calculators, checkers and report generators, every output citing the governing standard.

41 toolsAll free in beta Enter the suite →

Sudscope

SuDS & stormwater management 41 tools 41 live in beta
Enter the Sudscope suite →

One platform. Every suite.

Everything runs in the browser on one account: Sudscope today, in the browser. No licence keys, no plugins, no desktop software to maintain.

Traceable by design

Every input is logged and every formula cited back to the standard, so a reviewer can follow the reasoning, not just the result.

Report-ready

Outputs export as structured PDF reports that reference Defra NSTS S1–S7, ready to support a planning submission.

Manning

Page-aware and citation-first: Manning routes you to the right tool and the governing clause. The numbers stay in the validated tools.

Built to UK standards

Every calculation references a published UK standard or guidance document, cited in the output so a reviewer can trace it. Select a standard to read more at the source.

CIRIA C753
The SuDS Manual
The UK's primary SuDS design reference: component selection, sizing and treatment.
Visit CIRIA ↗
Defra NSTS
Non-Statutory Technical Standards
National technical standards for surface-water drainage on new development.
View on GOV.UK ↗
EA climate change
Climate change allowances
Peak rainfall & river-flow uplift allowances by epoch and catchment.
View on GOV.UK ↗
IH124 / FEH
Greenfield runoff & rainfall
Greenfield (QBAR) runoff estimation and FEH rainfall statistics.
Visit UKCEH ↗
SSG
Sewerage Sector Guidance
Water UK adoption specification for sewers and SuDS.
Visit Water UK ↗
BS 8582
Surface water management
Code of practice for surface-water management on development sites.
Visit BSI ↗
BS EN 752 / 12056
Drain & sewer systems
Design of drain and sewer systems outside buildings and gravity drainage.
Visit BSI ↗
BRE Digest 365
Soakaway design
Soakaway design and in-situ infiltration (percolation) testing.
Visit BRE ↗
BS EN 16941-1
Rainwater harvesting
On-site non-potable water systems: rainwater harvesting.
Visit BSI ↗
BS EN 1433
Drainage channels
Drainage channels for vehicular/pedestrian areas: load classes.
Visit BSI ↗

Quinnsite Ltd · BSI Member

Methodologies version-logged and last reviewed June 2025.

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