What is a garage conversion?

A garage conversion turns an integral or attached garage into habitable space, such as a study, playroom, bedroom or utility. The garage door is replaced with a wall and window, the floor is raised and insulated, and the walls and roof are brought up to building regulations.
How much does a garage conversion cost in Stourbridge?
In Stourbridge, a garage conversion typically costs £17,500–£29,000 for a single integral garage, including VAT at 20% (standard rate). Building costs in the West Midlands are close to the UK average, so the figures for Stourbridge are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £17,500–£29,000 |
| Higher specification | £29,000–£36,000 |
The biggest cost drivers are:
- Integral, attached or detached
- Whether planning permission is needed
- Foundations under the old door opening
- Single or double garage
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a garage conversion in Stourbridge?
Before anything is built in Stourbridge, we confirm which approvals apply in England. In England converting an integral or attached garage usually does not need planning permission, unless a condition on the house removed permitted development rights (common on estates built in recent decades) or the house is listed. Building regulations approval is always needed.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
From survey to sign-off, the job normally involves:
- Planning check for removed permitted development rights
- Wall and ceiling insulation
- New wall and window to replace the garage door
- Building control completion
- Floor raised with insulation and damp-proof membrane
- Foundation check under the garage door opening
How long does it take?
Allow 3 to 6 weeks on site. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Stourbridge
Across the West Midlands, inter-war and post-war semis make up much of the housing, giving good scope for two-storey side extensions and hip-to-gable lofts.
From DY8 outwards, we take on projects throughout Stourbridge and the surrounding parts of the West Midlands.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about garage conversions in Stourbridge
Who approves a garage conversion in Stourbridge?
Planning matters in Stourbridge go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How much does a garage conversion cost in Stourbridge?
In Stourbridge, a garage conversion typically costs £17,500–£29,000 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Will losing the garage affect parking?
Councils sometimes object if on-street parking is under pressure. We check local parking standards.
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.
How long does it take?
Typically 3 to 6 weeks on site.
