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Greater London

Rear extensions in Roehampton

Rear extensions in Roehampton: single-storey and two-storey extensions, side returns, wraparounds and glass-led designs, planned around Victorian and Edwardian terraces and the English rules.

Roehampton is in Greater London, with postcode districts including SW13, SW14 and SW15. The nearest places we also cover are Putney (1.3 miles) and East Sheen (1.3 miles).

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Rear extensions we build in Roehampton

Also available across Greater London:

Rear extension prices in Roehampton

London prices sit at the top of our range because of labour rates, access through the house, parking suspensions and skip licences.

ExampleGuide inc VAT
Single-storey, 3 m × 4 m (12 m²)£29,500–£48,500
Single-storey, 4 m × 6 m (24 m²)£59,500–£96,500
Two-storey, 3 m × 5 m footprint (30 m²)£70,000–£105,500
Side return, about 14 m²£42,000–£69,000
Wraparound, about 25 m²£71,500–£117,000

What are homes in Roehampton like to extend?

Much of Roehampton is Victorian and Edwardian terraced housing with narrow back additions, which suits side returns, wraparounds and 3 metre rear extensions. Many streets are in conservation areas, gardens are short, and almost everything comes through the house or along a rear alley.

Planning rules for Roehampton

In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.

England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.

Every rear extension in England needs Building Regulations approval, whether or not planning is needed. You can use the council's building control service or a registered building control approver, by full plans (checked before work, usually within five weeks) or a building notice, and you get a completion certificate at the end.

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FAQ

Questions people ask

How much is a rear extension in Roehampton?

A 3 m × 4 m single-storey rear extension is about £29,500–£48,500 including VAT at our London guide rates; the written price follows a survey.

Do I need planning permission in Roehampton?

Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.

Is the site visit in Roehampton free?

Yes, with no obligation.

Do I need a party wall agreement?

In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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