Build Over Agreements

Build Over Agreements London

During construction works of an extension, it is very likely that you will be building over, or close to a public sewer, both of which require consent from your local sewage provider. Sewers and drains must be safeguarded during construction to ensure they are accessible in the future and no damage is done as a result of the additional loads on the land. This means that the position of the foundation must be carefully considered and that protection must be implemented for the sewer.

Included within our all encompassing service is the detailed drawings required for building over sewers and the organisation of the application with your sewage provider. We have been working with Thames Water and Southern water for many years and accustomed to gaining their approval for our customers. If you have any questions or would like to know more about the process, please get in touch to speak to one of our team.

Key Features

What we Offer


Creative Input

Our experienced team has lots of creative ideas to ensure the design of your extension is not compromised,
regardless of the position of any sewers in your land.

Leading Architects

The position of your sewer is considered from the conception of your design to ensure that there are no delays during the construction works.

Years of Experience

We have established ourselves as leading architects throughout London and have completed thousands of residential projects. Our design team works closely with Thames Water on a regular basis, ensuring we remain up to date with the latest rules and regulations.

What Is A Build Over Agreement?

A build over agreement is a form of consent, required from your sewage provider if you are building over, or within 3 meters of a public sewer.

Safeguarding sewers and ensuring access is maintained is an extremely important part of the construction process. To ensure correct procedures are followed, your sewage provider assess’ the proposals and provides their consent before works begin. Freedom Homes Architects creates all the necessary drawings and organises the approval of your behalf so you don’t
have to worry about it.


What People Say

  • Excellent Service
    Professional from beginning to end, Cameron has helped us plan our project to add a rear extension and loft dormer, would highly recommend. He understood what we wanted and has supported us through the entire process, from drawings to planning and building regulation applications. Cameron's always been on hand to ensure our project remains on schedule
  • Definately Recommended
    Used freedom architects for some (what i thought) complicated work I wanted to do to my home and I couldn’t be any happier with their service. Philip came over, very polite and professional. He made the whole process so much easier and clearer. Any questions I had were answered. Planning went through with no issues and they helped every step of the way.
  • Amazing Service!
    I would highly recommend this business. They’re profession, turn around things quickly, always happy to answer questions and happy to give recommendations for other building related services.

Explore Our Services

Freedom Homes design and build package is designed to offer a comprehensive service from conception of your design to the completion of your construction.
Get in touch

Contact Freedom Homes!

For free advice or just for a chat, feel free to call us at any time, one of our team is always on hand to assist.

Call us on 020 3633 5522 or request a call back by completing the form below

Contact Us

Maximum file size: 100MB