Rear extension design, approvals and build across the UKCall 0800 088 6341 · Online guide price
Rear Extensionsrear-extensions.co.uk 0800 088 6341 Get a guide price

Merseyside

Rear extensions in Halewood

We design and build rear extensions for homes in Halewood, Merseyside, from single-storey kitchen-diners across the back of the house to two-storey extensions that add a bedroom above.

Halewood is in Merseyside, with postcode districts including L26. The nearest places we also cover are Speke (1.4 miles) and Hunts Cross (1.4 miles).

Book a free site visit

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

Rear extensions we build in Halewood

Also available across Merseyside:

Rear extension prices in Halewood

North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.

ExampleGuide inc VAT
Single-storey, 3 m × 4 m (12 m²)£21,500–£35,000
Single-storey, 4 m × 6 m (24 m²)£43,000–£70,000
Two-storey, 3 m × 5 m footprint (30 m²)£51,000–£76,000
Side return, about 14 m²£30,500–£50,000
Wraparound, about 25 m²£51,500–£84,500

What are homes in Halewood like to extend?

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

Planning rules for Halewood

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.

Planning and Building Regulations are separate in England: even a permitted development extension is inspected for foundations, drainage, structure, insulation, fire safety and ventilation, through the council or a registered building control approver, ending with a completion certificate.

Nearby towns

FAQ

Questions people ask

How much is a rear extension in Halewood?

A 3 m × 4 m single-storey rear extension is about £21,500–£35,000 including VAT at our North West England guide rates; the written price follows a survey.

Do I need planning permission in Halewood?

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 Halewood 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.

CallGuide price