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Croydon, Greater London

Bungalow rear extension in Croydon

Single-storey rear extensions that keep everything on one level. If you live in Croydon and want to know what a bungalow rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.

We cover Croydon (CR2, CR5, CR7 and CR8) as part of our Greater London work. For Croydon bungalows we design the roof first, because the low eaves decide the height of the new room.

Book a free site visit

Tell us about the house and we'll call to arrange a free, no-obligation visit.

How much does a bungalow rear extension cost in Croydon?

Guide prices for a bungalow rear extension in Croydon start from our London rate of £2,400–£3,900 per square metre, including VAT. London prices sit at the top of our range because of labour rates, access through the house, parking suspensions and skip licences.

Bungalow rear extension prices in Croydon
SizeGuide price inc VAT
3 m wide × 4 m deep (12 m²)£29,000–£47,000
4 m wide × 6 m deep (24 m²)£57,500–£93,500

Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.

Do you need planning permission for a bungalow rear extension in Croydon?

The planning route for a bungalow rear extension in Croydon is set by England's householder rules and your council.

English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.

If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.

Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.

What are homes in Croydon like to extend?

Croydon is mostly 1930s semis, short terraces and post-war houses, so full-width single-storey and two-storey rear extensions are realistic on many plots. Some later estates had permitted development rights removed by condition, so we check the planning history first.

How a bungalow rear extension in Croydon comes together

  1. Free site visit

    We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.

  2. Design and guide price

    Two or three layout options with a guide price for each, so you choose the design knowing what it costs.

  3. Approvals

    Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.

  4. Fixed price and build

    A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.

Bungalow rear extensions near Croydon

From Croydon, the nearest places we also cover are Thornton Heath (1.1 miles) and South Croydon (1.5 miles).

Other work in Croydon:

All rear extensions in Croydon

FAQ

Bungalow rear extension questions in Croydon

Who will build my extension?

Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.

Is the site visit in Croydon free?

Yes. We visit, measure up and talk through the options with no cost and no obligation.

Is a bungalow extension cheaper?

The rates are similar per square metre; roof work can add a little.

How much does a bungalow rear extension cost in Croydon?

As a guide, £2,400–£3,900 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £29,000–£47,000 at that rate. Your written price follows the survey.

Will I need a structural engineer?

Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.

Can I live at home while the extension is built?

Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.

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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