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Wrap-Around Extensions in London

A wrap-around extension combines a side-return and a rear extension into one L-shaped addition — the most transformative way to open up a ground floor. We design and build them end to end across London.

Typical cost
from £70k
On site
14–20 weeks
Planning
Householder
Best for
Maximum space

What is a wrap-around extension?

A wrap-around extension "wraps" around the side and rear of your home, combining a side-return infill with a rear extension. It creates a large, open-plan kitchen, dining and living space and dramatically improves light and flow on the ground floor.

Cost and value

Because they cover more area, wrap-around extensions typically start from around £70,000 + VAT to build and add significant value and liveability. Our design and planning fee for combined projects starts at £3,000 — see pricing.

Planning permission

Wrap-around extensions almost always need householder planning permission because they exceed permitted development limits. Our 97% approval rate comes from designing with policy and neighbour impact in mind from the start.

Recent projects

Common questions

How long does a wrap-around take?

Allow around 8–12 weeks for design and householder planning, then roughly 14–20 weeks on site.

Is it worth it over a standard rear extension?

If you want the biggest possible open-plan ground floor and have the side return to use, a wrap-around delivers far more space and light for the additional cost.

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