SuDS and Infiltration Design
We provide Sustainable Drainage Systems (SuDS) and infiltration design to manage surface water runoff for residential and commercial developments.
Our designs aim to control runoff at source, reduce flood risk, and provide practical solutions that are suitable for the site conditions.
What Are SuDS?
Sustainable Drainage Systems (SuDS) are used to manage surface water in a way that mimics natural drainage, reducing the impact of development on flood risk and the wider environment.
SuDS are often required as part of planning applications and are a key component of modern drainage design.
Infiltration Design
Where ground conditions allow, infiltration is typically the preferred method of surface water disposal.
We design infiltration systems based on site-specific conditions, including:
- Soakaways and infiltration trenches
- Ground permeability and infiltration testing
- BRE 365 compliant design
- Storage volume calculations
- Groundwater considerations
We assess the suitability of infiltration based on available ground investigation data and site constraints.
Types of SuDS Solutions
Depending on the site, we can design a range of SuDS features, including:
- Soakaways and infiltration systems
- Attenuation tanks and flow control systems
- Permeable paving
- Swales and shallow drainage features
- Discharge to watercourses where appropriate
Our designs follow the drainage hierarchy and are tailored to the specific site.
Supporting Planning and Approval
SuDS are often required to support planning applications and are closely linked to Flood Risk Assessments and drainage strategies.
We can provide:
- SuDS strategies for planning
- Supporting calculations and design information
- Coordination with site levels and drainage layouts
Our aim is to provide clear, proportionate information that meets planning requirements.
Working with Ground Conditions
The success of infiltration systems depends on ground conditions.
We work with:
- Ground investigation reports
- Infiltration testing (BRE 365)
- Site constraints such as groundwater levels and soil type
Where infiltration is not suitable, we develop alternative drainage solutions.
Get a Quote
If you require SuDS or infiltration design, please get in touch with:
- Site location
- Proposed development details
- Any available layout or drainage drawings
- Ground investigation or infiltration test results (if available)
We will review your enquiry and provide a clear scope and fee proposal.
For most projects, we typically require an upfront payment prior to starting work.