Build Over Agreements

Technical drawings prepared to support Build Over applications where extensions or other construction works are proposed over or close to public sewer infrastructure.

Building Near a Public Sewer

If a proposed extension or new structure is located over or close to a public sewer, approval from the relevant water authority may be required before construction can proceed. The authority will generally need clear information showing the sewer, proposed building and foundation arrangement.

Star Plans can prepare the technical drawings needed to support a Build Over application, showing the relationship between the proposed development and existing drainage infrastructure. Clear and accurate information helps demonstrate how the works are intended to be carried out while protecting access to the sewer and reducing the risk of damage.

Drawings for Your Build Over Application

Sewer Location Plans

Plans clearly showing the position of the existing public sewer in relation to the proposed extension or structure.

Property Layouts

Site and building plans providing the wider context needed to understand the proposed development.

Foundation Details

Technical sections showing the proposed foundation arrangement and its relationship to nearby drainage infrastructure.

Application Drawings

A coordinated drawing package prepared to provide the water authority with the information required to assess the proposal.

Keep Your Project Moving

Provide the relevant authority with a professional and easy-to-understand drawing package.

Explain how foundations and construction are intended to work around the existing sewer.

Clearly show the relationship between the proposed structure and existing sewer infrastructure.

A clear technical submission can help reduce unnecessary delays and requests for further information.

Planning to Build Near a Public Sewer?

Speak to Star Plans before work begins. We can prepare the technical plans required to clearly present your proposed development as part of a Build Over application.