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Water Company Application Support

Build Over Agreement Service

Building near or over a public sewer? A Build Over Agreement may be required depending on the project and water-company requirements. We offer defined application preparation and submission support.

Build Over Agreement Service £650 + VAT
Sewer location search
Application preparation
Water company submission
Submission support; the water company makes the decision

The £650 + VAT service fee excludes water-company and other third-party fees. The water company controls its requirements, processing time and decision.

When Is a Build Over Agreement Required?

A Build Over Agreement may be required for work near a public sewer; confirm the project-specific requirements with the relevant water company.

Extension Over Sewer

The proposed works cross or sit near a public sewer; requirements depend on the water company.

Within 3 Metres

Foundations are close to a public sewer; the relevant water company confirms applicable requirements.

Deep Foundations

Proposed foundations or other works may affect a sewer.

Near Manholes

Proposed work is near a public manhole or inspection chamber.

Important: 2011 Sewer Transfer

In 2011, many private sewers were transferred to water-company ownership. Available records can help identify relevant sewers, but the water company confirms its requirements for the proposed works.

How Our Build Over Service Works

The service covers the agreed sewer location search, application preparation and submission support. The water company decides the application.

1

Sewer Location Search

We review available water-company sewer records to help identify whether a public sewer may affect the proposed work.

2

Application Preparation

We prepare the agreed application documents using project information and drawings supplied for the proposed works.

3

Submission Support

We submit the agreed application to the relevant water company. The water company decides whether to approve it and may request further information.

4

Water Company Decision

The water company communicates its decision and any conditions. Approval and processing time are outside our control.

Why Choose Hampshire Build?

We provide a defined pre-construction service for projects that need a Build Over Agreement.

Defined Preparation & Submission Support

The £650 + VAT service fee covers the agreed sewer location search, application preparation and submission support. Water-company and other third-party fees are separate.

Authority Timetable

Requirements and processing times are set by the relevant water company; no decision or timetable is guaranteed.

Project-specific Requirements

The applicable requirements depend on the water company, sewer records and proposed works.

Written Agreement

Where required and approved, the agreement records the water company's terms for the proposed works.

Frequently Asked Questions

A Build Over Agreement sets out a water company's terms for proposed building work over or near a public sewer. Whether one is needed and the conditions involved depend on the relevant water company and project.

Sewer records can be requested from or checked with the relevant water company. Records may not show every site condition, so further checks may be needed.

If an agreement is required and has not been obtained, the water company may require remedial action or impose other conditions. Check the requirements with the relevant water company before building.

Processing times vary by water company and application. We do not guarantee a decision date; confirm current requirements and timings with the relevant authority.

Coverage depends on the property's location. The relevant water company can be confirmed from the address and available records.

The water company may request sewer records, the proposed works, drawings and structural information. Any required structural calculations are prepared by an independent qualified structural engineer; additional documents or work may be separately scoped.

Need a Build Over Agreement?

Ask us about the £650 + VAT preparation and submission support service. Water-company and other third-party fees are separate; approval and processing time are determined by the authority.