Drainage consultancy

Do you need a drainage strategy to support your next planning application?

Our dedicated team of engineers have over 25 years’ of experience in supporting planning applications for housing, commercial, industrial, recreational and leisure. We can also support you through your due diligence process and help out if you have existing drainage problems.


SUPPORTING YOUR PLANNING APPLICATIONS, DUE DILIGENCE, OR HELPING RESOLVE DRAINAGE ISSUES

If you are submitting a planning application for new development in England, Scotland, or Wales, you will most likely require a drainage strategy.

Did you know, you will require a drainage strategy, tailored to the national guidance of the county in which you are making your application? Our team is experienced in undertaking drainage strategies to Lead Local Flood Authority specific requirements in England and Wales, SuDS Approval Body (SAB) applications in Wales, and Drainage Impact Assessments in Scotland.

We provide advice from conceptual drainage design stages to detailed drainage design for a wide range of commercial and residential developments.

We also provide specialist advice to discharge planning conditions on drainage issues, due-diligence investigations during site acquisition and disposal, and provide advice on how to resolve drainage issues.

WHAT SERVICES DO WE OFFER?

  • Drainage advice to inform masterplanning
  • Outline and detailed surface water drainage strategies
  • Outline and detailed foul water drainage strategies
  • Site level designs to guide drainage strategies
  • Removing objections from the lead local flood authorities
  • SuDS maintenance plans
  • Peer review drainage design
  • Construction cost assessments
  • Drainage due diligence
  • CCTV surveys to support foul and surface water investigations
  • Soakaway tests
  • Trade effluent discharge compliance

BOOK YOUR DRAINAGE ASSESSMENT

Please get in touch and one of our consultants will contact you to discuss how we can help:

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OUR RECENT WORK

Residential development in England

Hitachi Energy Limited – outline foul and surface water drainage strategy for 114 home scheme

Planning application for 114 homes on a 4 hectare residential scheme in an urban setting with complex drainage constraints.

Avison Young produced an outline foul and surface water drainage strategy for this site and liaised closely with the Lead Local Flood Authority to meet their strict requirements for the proposed development, thereby achieving approval for the drainage design.

Extensive leisure scheme in England

Butlin’s Skyline Limited – foul and surface water drainage strategy for 138 holiday lodge development

Planning application for 138 holiday lodges forming an extension to this existing holiday site in Skegness, with extensive sustainable surface water drainage features incorporated into the design.

The application was supported by a complex outline foul and surface water drainage strategy, with drawings produced in AutoCAD and the drainage designed using InfoDrainage software.

Leisure scheme in Scotland

Parkdean Holiday Park Limited – detailed drainage design for 21 holiday lodge development

Discharge of drainage conditions for a detailed planning application for a holiday scheme with 21 static caravans in the Highlands.

The discharge of drainage conditions submission was supported by a detailed surface water drainage strategy that incorporated sustainable drainage features meeting the requirements of The Highlands Council.

Leisure scheme in Wales

Templeton Park Limited – SAB application

Discharge of drainage conditions for a detailed planning application for a residential caravan park home in Wales.

The discharge of drainage conditions submission was supported by a detailed foul and surface water drainage strategy that complied with the local SuDS approval board (SAB) requirements. A detailed SAB application submission also formed part of this submission.

Industrial unit

Metalor Technologies Limited – detailed foul and surface water drainage design

Planning application for a light industrial unit on a 0.7hectare site, incorporating a number of sustainable drainage features that enabled the site to obtain a BREEAM Excellent rating.

The application was supported by a detailed foul and surface water drainage strategy, with drawings produced in AutoCAD and the drainage designed using InfoDrainage software. In addition a BREEAM application was completed to support the BREEAM assessment for the proposed site. The site’s drainage design was recently approved by the Lead Local Flood Authority following close liaison with Birmingham City Council’s Projects Leader.

Science and enterprise park

Loughborough University – outline drainage design for masterplanning

Avison Young created detailed constraints plans and guidance to the urban planners producing the masterplan for this proposed 71.5 hectare science and enterprise park site.

Our work to date has consisted of high level surface water attenuation calculations; assessment of overland flow routes; assessment of points of outfall; and assessment of flood modelling mapping (provided by our Flood Risk Consultancy team), to produce a proposed SuDS attenuation features plan. Drawings have been produced using AutoCAD and the drainage assessment has used InfoDrainage software.

Drainage investigation

Industrial / residential site – drainage investigation

In depth investigations and review of a complex existing combined foul and surface water drainage system that serves both an industrial site and a series of residential properties.

Our report was produced to contribute towards a sales pack of information for the industrial site alone, determining how drainage to the residential properties could be maintained while the industrial site ceased to operate.

Trade effluent compliance

Portfolio of 15 national auto repair sites – drainage investigations

Investigations at a portfolio of sites located across the UK to determine the status of existing car wash bay drainage connections.

Avison Young produced drainage remedial designs to ensure each site identified as misconnected, could comply with trade effluent requirements.

Trade effluent consents have subsequently been obtained for each site as drainage remedial works have been completed. Individual AutoCAD drawings and scope of works documents were produced for each site for tender purposes.

GIS AND CAD SERVICES ▸