Wraparound extensions in Wimbledon

Covering Wimbledon

We work in Wimbledon (SW19) and the places around it, including Morden, Mitcham and Putney.

Homes in London

Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.

What goes into a wraparound extension?

A wraparound extension combines a side return and a rear extension into one L-shaped build, giving the biggest possible ground-floor space on terraced and semi-detached houses. It usually creates a large open-plan kitchen, dining and living area across the back of the house.

Party wall process with both neighbours if needed
Steel frame or goalpost for the corner opening
Pitched, flat or glazed roof with rooflights

How much does a wraparound extension cost in Wimbledon?

Indicative costs for wraparound extensions. London and the South East usually sit towards the top of each range.

Wraparound extensions	Guide price incl. VAT
Standard specification	£3,400 to £3,800 per m²
Good specification	£3,800 to £4,250 per m²
High specification	£4,250 to £4,700 per m²

Planning and building rules in Wimbledon

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

In England a wraparound extension is treated as one extension, and because it covers both the side and the rear it does not normally fit within permitted development.

What can change the price or programme?

Both neighbours may need party wall notices.
Roof water from an L-shape needs careful falls and outlets.

How does the project run?

Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Wraparound extensions: common questions

Does a wraparound need planning permission?

Usually yes. In England it combines a side and rear extension, which takes it outside permitted development in most cases.

Can we keep part of the kitchen working?

Often, by sequencing the work so the old back wall comes out last. We agree a plan with you before starting.

How do I get a price for wraparound extensions in Wimbledon?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Wraparound extensions near Wimbledon

Learn more about wraparound extensions, or see every project we cover in Wimbledon.