PROJECT 06 / HOMEOWNERS & LANDLORDS / SCOTLAND
Property Extension Drainage Survey
Envirotech Drainage Solutions was appointed to investigate the existing drainage system at a residential property ahead of a planned extension.
The survey was required to establish the route, condition and connectivity of the existing drainage network, helping the homeowner understand how the proposed works could interact with below-ground drainage before construction commenced.

Project at a Glance
LOCATION
Broxburn
SECTOR
Homeowners & Landlords
PROJECT TYPE
CCTV survey & drainage route tracing
THE CHALLENGE
Project Overview
Before the proposed extension progressed, the homeowner needed clearer information about the existing underground drainage. Available records alone could not establish the precise routes, condition and connections of the accessible pipework.
Envirotech combined CCTV inspection with sonde tracing to investigate existing drainage routes, connection points and visible pipe condition. The findings provided a more useful basis for design discussions and early planning around the proposed building works.
THE BRIEF
Scope Of Works
Works included:
- CCTV inspection of accessible drainage pipework
- Sonde tracing of underground drainage routes
- Identification of existing connections
- Confirmation of accessible pipe routes
- Recording of pipe condition
- Identification of visible defects or restrictions
- Inspection of accessible chambers
- Photographic and CCTV evidence
- Drainage information to support extension planning
ON SITE / TECHNICAL DELIVERY
CCTV Survey, Tracing & Connectivity
CCTV inspection was used to assess the internal condition of the accessible drainage system and establish how sections of pipework connected around the property.
Where routes were unclear, sonde tracing helped identify the approximate position and direction of underground drainage pipework.
Combining CCTV surveying with tracing provided a more complete understanding of the system than relying on existing drawings or assumptions alone, helping establish which sections of drainage could potentially be affected by the proposed extension.



THE RESULT
Project Outcome
The completed investigation gave the homeowner a clearer understanding of the accessible drainage network, including identified pipe routes, connections and the visible condition of surveyed sections.
CCTV footage and sonde tracing provided practical evidence for discussions with the designer and contractor about the proposed extension and its potential interaction with existing drainage.
Establishing this information before construction helped the homeowner plan around known pipework and reduced reliance on assumptions about underground connections. The survey also provided a record for future maintenance or investigation. Sonde-derived routes and depths are approximate, and the survey does not by itself verify hydraulic capacity or watertightness.



EXPLORE THE CAPABILITIES
Related Services & Sector
HAVE A SIMILAR REQUIREMENT?
Planning a Property Extension?
Envirotech supports homeowners, landlords, architects and contractors with CCTV drainage surveys, tracing and drainage investigations ahead of extensions, alterations and property development works.
Understanding the existing drainage layout before construction begins can help identify potential conflicts and provide better information for design and planning.
