Single-storey extensions in Halesowen

Before your single-storey extension in Halesowen

Planning applications and lawful development certificates for Halesowen go to Dudley Council. Many single-storey extensions fall under permitted development, but not every house keeps those rights — conditions on newer estates, conservation areas and Article 4 directions can remove them. The structural work also needs Building Regulations approval, through the council's building control team or a registered building control approver.

A lawful development certificate from Dudley Council confirms in writing that a permitted development extension is lawful, which helps when you sell.
Every extension needs Building Regulations approval, even when planning permission isn't required.
Wide glazed doors and roof lights make the biggest difference to how bright the new room feels, and to the final price.

Postcode district: B63
Planning and building control: Dudley Council
From our West Bromwich base: 5 miles

Which option fits your home?

Utility, WC or boot-room extension

A smaller extension of 6–12 m² can take the washing machine, coats and a downstairs toilet out of the kitchen. Adding a WC means a new waste connection, so the position of the existing drains often decides the layout. It's a cost-effective way to free up the main rooms without a large build.

Side or side-return extension

Uses the strip of land beside the house, often a passage or driveway. Under permitted development a side extension can be up to half the width of the original house and no more than 4 metres high. On a terrace with a narrow side return, it can widen a galley kitchen considerably without eating into the garden.

Guide prices for Halesowen

For a home in Halesowen, our guide range is £28,000–£90,000 depending on size and specification. A 4 m × 5 m rear extension on a semi, with roof lights and bifold doors: usually £40,000–£52,000.

Guide prices for single-storey extensions
Option	Guide price	Good to know
Small rear or side extension (10–15 m²)	£28,000 – £40,000	Utility, WC or a modest kitchen extension
Rear kitchen-diner extension (18–25 m²)	£38,000 – £58,000	The glazing spec moves it within the range
Wrap-around or large extension (30 m²+)	£58,000 – £90,000	More steel and roof, and normally a planning application

Guide ranges include VAT where it applies. Your fixed price for the agreed specification follows a free survey at your Halesowen address.

Your questions answered

Can we live at home during the build?

Yes, most families stay at home throughout. For the first several weeks the work is outside and your house is closed off from it. The disruptive part is the break-through, when the back wall comes out and the kitchen may be out of action for one to three weeks. We agree a plan for a temporary sink and cooking space before that stage starts.

Which postcodes in Halesowen do you work in?

We cover B63 and the streets around them. If you're on the edge of Halesowen, neighbouring Quinton and Cradley Heath are covered too.

What guarantees come with the extension?

Windows, doors, roof lights and roofing membranes come with manufacturers' guarantees, and the terms for each product are set out in your quote. Building control's completion certificate confirms the work met Building Regulations when inspected. If anything in our workmanship isn't right after handover, call us and we'll come back and look at it. Ask us for current insurance details with your quote.

Will I need permission from the council in Halesowen?

Usually building control, and sometimes planning. Dudley Council is the planning authority for Halesowen; Building Regulations approval comes from its building control team or a registered building control approver. We'll tell you which applies after the survey.

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