House extensions in Halesowen
Planning an extension in Halesowen? Compare extension types, see guide prices adjusted for Halesowen and book a free site visit.
- Postcode districtsB32, B62, B63, B64, B65, B68
- Price regionWest Midlands (×0.97)
- Planning rulesEngland
- Site visitFree, no obligation

Halesowen and surrounding towns
Site visits are available across Halesowen (B32, B62, B63, B64, B65, B68). Nearby, we also take on projects in Brierley Hill (4 miles), Dudley (4 miles), Stourbridge (4 miles), Smethwick (5 miles), West Bromwich (5 miles). Just over the Worcestershire border, Bromsgrove is about 8 miles away.
Planning rules in Halesowen
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
Which extension suits a Halesowen home?
The West Midlands has a large stock of 1930s and post-war semi-detached houses, which are well suited to rear, side and over-garage extensions, plus Victorian terraces in the older inner areas.
The types we would usually look at first for a home in Halesowen are kitchen extensions, double-storey extensions and extensions over a garage, depending on the garden and how the house is laid out.
Halesowen extension prices at a glance
Use these Halesowen guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Double-storey extensions | 32 m² | £55,500 – £73,000 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Extensions over a garage | 12 m² | £24,000 – £31,500 |
| Orangery extensions | 16 m² | £43,000 – £54,500 |
| Single-storey rear extensions | 20 m² | £39,500 – £50,500 |
| Kitchen extensions | 20 m² | £40,500 – £51,500 |
Choose an extension type
- Annexe extensions · from £53,000
- Planning permission for extensions · from £300
- Single-storey rear extensions · from £20,000
- Timber frame extensions · from £20,000
- Home office extensions · from £15,500
- Bungalow extensions · from £25,000
- Glass box extensions · from £29,000
- Extensions over a garage · from £23,000
- Pitched roof extensions · from £21,500
- Side extensions · from £21,000
- Extension plans and drawings · from £1,150
- Porch extensions · from £3,850
- Kitchen extensions · from £26,000
- Utility and boot room extensions · from £13,500
- Flat roof extensions · from £20,000
- Side return extensions · from £17,000
- Conservatory replacement extensions · from £19,000
- Orangery extensions · from £29,000
- Double-storey extensions · from £36,500
- Wraparound extensions · from £34,500
- Bedroom extensions · from £25,000
- Building regulations for extensions · from £850
Free site visit
We visit your Halesowen home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Halesowen
How much does an extension cost in Halesowen?
Using our West Midlands factor (×0.97), a standard-spec single-storey extension of 20 m² is a guide £39,500 to £50,500 including VAT, and a 32 m² two-storey extension £55,500 to £73,000. Your written price follows the survey.
Do you cover all of Halesowen?
Yes, including the surrounding parts of West Midlands. Site visits are free and there is no obligation.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Book a free site visit in Halesowen
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.