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Build-over agreements

Drawings, structural detail and coordination for build-over and build-near agreements with Thames Water.

A curving buff-brick extension meeting a period sandstone house, seen from the garden
The brief

The studio prepares the drawings, structural details and coordination required for build-over and build-near agreements with Thames Water.

Approach

Where new work is proposed over or near a public sewer, the foundations and drainage are designed to protect the asset and to satisfy the water company's requirements.

Planning and regulation

An agreement is required before work begins, and the design is prepared so that it can be approved without delay to the programme.

Delivery

The application is submitted and managed by the studio through to approval.

Fees

Fees are fixed for each stage and confirmed in writing once the scope is agreed. Construction cost depends on the site, the specification and the procurement route, and is established through an indicative cost plan at feasibility stage.

Frequently asked questions

How are fees and construction costs established? +
Fees are fixed for each stage and confirmed in writing once the scope is agreed. Construction cost depends on the site, the specification and the procurement route, and is established through an indicative cost plan at feasibility stage.
How long does it take? +
Thames Water targets 21 working days. In practice, 4-8 weeks including preparation.

Who we work with

  1. 01Homeowners
  2. 02Developers
  3. 03Contractors
  4. 04Landowners
  5. 05Businesses
  6. 06Self-builders
  7. 07Adjoining owners

Why clients choose us

01Fixed fees

Fees are fixed at each stage and confirmed in writing, so that cost is known before design begins.

02Director-led

A director leads each project from the first conversation to completion, giving continuity at every stage.

03Response

Every enquiry is answered by a director within one working day, and progress is reported at every stage.

04Independent advice

Advice follows the evidence, including where it departs from the initial brief.

05Design quality

Design is resolved in detail before it reaches site, so that the quality of the idea is carried into the built work.

Related services

Services that usually sit alongside this appointment. Fixed fees, staged, with a director leading the work.

Discuss a project with the studio

Provide the site address and a summary of the requirement. A director will respond within one working day.

Call Email the studio Request a proposal