Rear Extension Structural Design London

Connect the new space to the existing home

An extension often combines new roof and wall construction with a large opening in the existing rear elevation. We review how these elements interact and what support is needed at the connection between old and new. Early coordination helps the team understand the consequences of the proposed layout.

Work with the constraints of London properties

Terraced homes, close boundaries and previous alterations can make the design brief more involved. Tell us about neighbouring structures, known drainage, access constraints and available ground information. We identify what further information is needed rather than assuming that one foundation or framing detail suits every site.

Agree the package before the build

The appointment can cover the structural calculations, drawings and agreed responses to design queries. Your architect or project lead remains an important part of coordinating the wider proposal. If the design changes, have the structural implications reviewed before committing to site work.

More about your London property

• Side-return extensions — Rooflights, rear openings and the narrow space beside a terraced home.
• Alterations near party walls — Engineering information to support coordination near shared walls and boundaries.
• Constrained access — Narrow entrances, delivery routes and structural details that suit the site.

What to send with your enquiry

• Your project address or postcode and the type of property.
• Existing and proposed drawings, if available.
• Photographs and a short description of the works.
• Your intended programme and any queries already raised by the project team.

We consider projects throughout Greater London and nearby areas. The quotation confirms deliverables, information requirements and any site attendance; it does not assume that every enquiry needs the same package.

Common questions