Bungalow rear extension in Allerton

How much does a bungalow rear extension cost in Allerton?

In Allerton, our guide for a bungalow rear extension is £1,740–£2,820 per square metre including VAT for a standard specification. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.

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 Allerton?

Here is how the rules in England apply to a bungalow rear extension in Allerton.

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.

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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.

What are homes in Allerton like to extend?

Stone and brick terraces are common around Allerton. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.

How a bungalow rear extension in Allerton comes together

1. Survey visit

   We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.

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. Build and sign-off

   We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.

Bungalow rear extensions near Allerton

From Allerton, the nearest places we also cover are Mossley Hill (1.0 miles) and Woolton (1.1 miles).

• Bungalow rear extension in Mossley Hill
• Bungalow rear extension in Woolton
• Bungalow rear extension in Hunts Cross
• Bungalow rear extension in Childwall
• Bungalow rear extension in Belle Vale

Other work in Allerton:

• Single-storey rear extension
• Two-storey rear extension
• Kitchen-diner rear extension
• Side return extension
• Wraparound extension
• Glazed rear extension

All rear extensions in Allerton