Sustainable Urban Drainage Systems & Surface Water Drainage Design
SUSTAINABLE URBAN DRAINAGE SYSTEMS & SURFACE WATER DRAINAGE DESIGN
Sustainable urban Drainage Systems (SuDS) are environmentally responsible methods for managing surface water. They mimic natural processes by slowing water flow and encouraging disposal as close to the source as possible. In addition to effective water management, SuDS can enhance biodiversity and community wellbeing through the integration of green infrastructure.
Understanding SuDS and the requirements for SuDS assessments is key to delivering practical and cost-effective solutions that help projects progress smoothly. Whether you’re working on a small residential site requiring percolation testing and soakaway design, or a larger development where a management train approach is appropriate, a clear SuDS report and a robust design are essential for success.
SuDS Requirement
ARE SUDS COMPULSORY?
Sustainable Drainage Systems (SuDS) are a mandatory requirement for all new developments across the UK, as stipulated by the Lead Local Flood Authority (LLFA) and the relevant water authority. Therefore, it is unlikely that planning approval will be granted, and in some cases, conditions relating to surface water discharge may not be approved unless the proposals include a suitable and compliant SuDS scheme.
We have a proven track record in delivering accurate calculations and detailed designs, supported by clear and practical drawings. We work closely with clients and liaise with the appropriate authorities to ensure that the most effective and feasible solutions are implemented.
Our SuDS reports can be tailored to include as much or as little detail as required by the relevant local authority. This may include:
What’s Included
WHAT’S INCLUDED IN A SUSTAINABLE DRAINAGE ASSESSMENT?
The level of detail required in a SuDS report is determined by the local planning authority and varies depending on whether the site is located within a Critical Drainage Area and whether the development is classified as minor or major. Ensuring that your submission meets these requirements is essential for securing planning approval and discharging conditions related to surface water management.
Our SuDS reports can be tailored to include the following elements, based on the expectations of the Lead Local Flood Authority (LLFA) and the relevant water authority:
- Pre and post development surface water runoff calculations
- Greenfield runoff calculations
- Pre and post development contributing area and exceedance route plans
- BRE365 percolation and infiltration testing
- BRE365 soakaway sizing calculations
- Surface water attenuation calculations
- Discussion of the SuDS hierarchy in line with local and national policies
- Proposed SuDS strategy aligned with planning policy requirements
- Outline SuDS design layout plans
- Detailed SuDS design plans suitable for construction
- Management and maintenance plans for the lifetime of the development
Nimbus SuDS
NIMBUS SUDS SERVICES
- Soakaways;
- Attenuation devices;
- Permeable paving;
- Swales;
- Filter strips;
- Wetlands and ponds;
- Rainwater harvesting systems;
- Green roofs;
- Infiltration basins;
- Infiltration trenches;
- Detention basins
- Filter Drains
- Bioretention
Customer Reviews
“I am very happy with the work Nimbus have carried out for me over the last 10 years. They always deliver a good service at a very good price and always high quality reports and fast turn around. They have carried out work on many of my projects in Croydon and I have never had a problem with their work.”
“I have worked with Nimbus Engineering for many years. I can always count on them to deliver comprehensive flood risk assessments, drainage strategy and SuDS reports, on time and at a competitive price. More importantly, I can’t think of a single occasion where a council has not accepted the report’s.”
“I have used Nimbus Engineering for a number of projects over the last 10 years and have always found them to be flexible, highly skilled and great value for money. Anyone looking for Flood Risk and/or Sustainable Urban Drainage System advice need look no further, Nimbus have the solution.”
Get A Quote Today
Get in touch with Nimbus Engineering Consultants for SuDS reports, drainage design, or general engineering enquiries. Our team will be happy to provide advice or a quotation for your project.
