Severn Trent Water Section 104 Surveys

If you’re building new sewers as part of a development within the Severn Trent Water area, a Section 104 agreement determines whether those sewers will ultimately be adopted and maintained by the water company. Subvision Surveys carries out the survey work that supports this process at each of Severn Trent’s distinct inspection stages.

Two Inspection Stages, Not Just One

Severn Trent Water’s process includes an inspection of newly built sewers before they enter the maintenance period, followed by a separate final inspection before formal adoption is confirmed. This two-stage approach means survey and inspection support is needed at more than one point in the process, rather than a single sign-off check at the very end, and getting accurate data ready for each stage helps avoid delays as the application progresses.

Repeat Developers and the Bond Waiver Scheme

Severn Trent offers a Bond Waiver scheme for developers submitting at least three Section 104 applications within a twelve-month period, reducing the financial burden of the standard adoption bond for qualifying applicants. For developers working across multiple sites in the Severn Trent region, having consistent, reliable survey support across each application helps keep a busy pipeline of submissions moving smoothly.

Why Choose Subvision for Section 104 Surveys

Subvision Surveys is SSIP and ISO accredited, with more than 3 decades of experience servicing commercial and residential clients. We work nationwide, using specialised techniques and cutting-edge equipment to deliver accurate results at competitive rates for Tier 1 contractors, developers, planners and private individuals alike. We provide our services across the UK, and can also help advise not just on Severn Trent, but many more locations including Bristol water Section 104 Surveys and many more locations.

Contact Subvision Surveys today to discuss survey support for your Severn Trent Water Section 104 application, or speak to one of our experts on 0333 920 942.

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Severn Trent Water Section 104 Surveys FAQS

A Section 104 agreement is a legal agreement under the Water Industry Act 1991, allowing a developer to construct new sewers to Severn Trent Water’s required standard, which Severn Trent will then adopt and maintain. The agreement is typically signed before construction begins, with new sewers built in line with Water UK’s Sewerage Sector Guidance. Once adopted, responsibility for maintaining the sewer transfers fully to Severn Trent Water, removing that ongoing liability from the developer.

Severn Trent Water’s process includes an inspection of newly built sewers before they enter the maintenance period, followed by a separate final inspection before formal adoption is confirmed. This two-stage approach gives Severn Trent the opportunity to check construction quality shortly after completion, and again once the sewer has been in use through the maintenance period, helping confirm the system continues to perform as expected over time rather than relying on a single check carried out too early to catch developing issues.

Severn Trent Water offers a Bond Waiver scheme for developers who can demonstrate they intend to submit at least three Section 104 applications within a twelve-month period. Qualifying applicants can apply to waive the standard adoption bond, which normally provides financial security to Severn Trent during the maintenance period. This is particularly useful for developers with an active pipeline of sites across the Severn Trent region, reducing the financial commitment tied up in bonds across multiple simultaneous applications.

Accurate survey data is useful throughout the process, not just at the final inspection stage. Drainage line and level survey data supports the initial design and technical review, while CCTV drainage surveys can support both the pre-maintenance-period inspection and the final inspection before adoption. Having this data ready at each stage, rather than only commissioning a survey once a problem has already been flagged, helps keep the application moving without unexpected delays.

Subvision Surveys is SSIP and ISO accredited, with more than 3 decades of experience delivering CCTV drainage surveys and drainage line and level surveys in support of Section 104 applications. We work nationwide, and our experience extends across different water authorities, including United Utilities, giving us a broad understanding of how requirements and inspection stages can vary between regions. This means we can support developers through Severn Trent’s two-stage inspection process with a consistent, reliable approach at each point.

Have Any Questions?

If you have any questions regarding our services feel free to contact the Subvision team.

Subvision Surveys accreditations: QUVA ISO certification, Achilles UVDB, SafeContractor, Constructionline, Builder's Profile, European GPR Association, Avetta, SMAS, CHAS, Essex Chambers of Commerce and The Survey Association