Covering Trowbridge
We work in Trowbridge (BA14) and the places around it, including Bath, Frome and Warminster.
Homes in the South West
In the South West, matching local stone, render or slate is often the main design question, and conservation areas and listed buildings are common in historic towns.
What is included in a garage conversion in Trowbridge?
A garage conversion turns an attached, integral or detached garage into a habitable room by infilling the door opening, insulating the floor, walls and roof, and adding windows, heating and power. It is one of the quickest and cheapest ways to add a room.
- Planning check (some estates remove permitted development rights)
- Heating, electrics and data points
- Plastering, skirting and decoration-ready finish
What will a garage conversion cost?
What garage conversions typically cost. These are guide ranges; the written quote for your house replaces them.
| Garage conversions | Guide price incl. VAT |
|---|---|
| Single integral garage | £12,000 to £17,000 |
| Single attached garage | £12,000 to £24,000 |
| Single detached garage | £18,000 to £30,000 |
| Double garage | £25,000 to £54,000 |
What approvals does a garage conversion need in England?
Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.
An internal garage conversion is usually permitted development in England unless the house is listed, an Article 4 direction applies, or it is on an estate where the planning permission removed permitted development rights.
What should Trowbridge homeowners check first?
- The garage floor is often lower than the house and needs raising.
- A bedroom needs an escape window or a protected route out.
What happens after I enquire?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
What people ask before starting
Do I need planning permission for a garage conversion?
Usually not if the work is internal and your permitted development rights are intact. Some estates remove those rights, so we check.
Does it need building regulations approval?
Yes, because it becomes a habitable room.
Do you work in Trowbridge?
Yes. Trowbridge is within our coverage for garage conversions, along with nearby Bath and Frome.
Garage conversions in nearby towns
- Garage conversions in Bath
- Garage conversions in Frome
- Garage conversions in Warminster
- Garage conversions in Corsham
Learn more about garage conversions, or see every project we cover in Trowbridge.

