Extensions over a garage in Dudley
Our design and build teams take on over-garage extensions in Dudley, from the first measured survey through planning and building control to the finished room.
- Guide price in DudleyFrom £23,000 inc VAT
- PlanningHouseholder application needed
- Build time12–18 weeks on site
- Postcode districtsB64, B65, B69, DY1, DY2
Covering Dudley
Across B64, B65, B69, DY1, DY2, DY5, we can visit, measure and advise. The same team covers Brierley Hill (2 miles), Tipton (2 miles), Kingswinford (4 miles), Halesowen (4 miles), all within easy reach.
Just over the Worcestershire border, Kidderminster is about 10 miles away. Across the West Midlands, brick-built semis with long gardens are common, so single-storey and two-storey rear extensions are popular choices.
Will the council need to approve it?
In England any side extension over one storey, including a room built over a side garage, needs a householder planning application. The fee is £548 from 1 April 2026 and councils aim to decide within 8 weeks.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
Guide prices for Dudley
Labour and material costs vary across the UK, so for Dudley we use our West Midlands factor (×0.97). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Dudley: £1,750 to £3,300 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Over a single garage 12 m² | £23,000 – £28,500 | £24,000 – £31,500 | £31,000 – £40,000 |
| Over a large single garage 16 m² | £27,500 – £34,500 | £32,500 – £42,000 | £41,500 – £53,000 |
| Over a double garage 24 m² | £41,500 – £51,500 | £48,500 – £63,000 | £62,500 – £79,500 |
Want a range for your exact size? The guide-price tool takes about a minute.
When an over-garage extension makes sense
- Detached and link-detached houses with an attached garage
- Families needing a bedroom without losing garden
- Homes where the landing can connect to the new room
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Over-garage extension questions answered
Do you cover all of Dudley?
Yes. We cover Dudley and the surrounding parts of West Midlands. Site visits are free and there is no obligation.
How long does an over-garage extension take to build in Dudley?
On site, typically 12 to 18 weeks once approvals are in place. Before that, allow 8–14 weeks design and approvals.
Do I need building regulations approval in Dudley?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Does building over a garage need planning permission?
In England and the rest of the UK, adding a storey over a side garage almost always needs a planning application, because two-storey side extensions are outside permitted development.
How much does a room over a garage cost?
Our guide range is about £1,750 to £3,300 per m² including VAT. A single-garage room of about 12 m² usually costs £24,000 to £31,500 at standard spec, more if the garage needs rebuilding.
Book a free site visit in Dudley
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.