A council drainage records request is a formal application to a local authority asking for any historic drainage drawings, sewer records or planning files held on a property or site. Borough councils across London such as Camden, Islington, Westminster and Hackney hold varying levels of documentation, particularly for older properties where original drainage was approved by the predecessor authority. Buyers, surveyors and design teams use the records to inform their drainage strategy, supplement CCTV inspections to BS EN 13508-2 and identify potential conflicts during basement, extension or refurbishment projects. The request typically involves a search fee and a structured application form. Where the local authority records are limited, a Thames Water records search and a drain mapping survey by qualified engineers are usually required to build a complete picture.
Council drainage records request
Formal request to a local authority for historic drainage records held on file.
