Covering Monmouth
Our coverage around Monmouth (NP25) also includes Ross-on-Wye (10 miles to the north-east) and Chepstow.
Homes in Gwent
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What does a garage conversion involve?
Most integral garages already have the walls and roof; what they need is a new insulated floor, an infilled front wall with a window, and heating. We check whether your permitted development rights are intact, handle building control and finish the room ready to use.
- Planning and building regulations checks under Welsh rules
- Planning check (some estates remove permitted development rights)
- Insulated floor, walls and ceiling
How much should I budget for a garage conversion?
Guide prices for garage conversions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
| 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 |
Planning and building rules in Monmouth
Planning decisions in Wales are made by the local council, using permitted development rules set by the Welsh Government rather than England’s. Building regulations in Wales have their own approved documents, and the Party Wall etc. Act 1996 applies to work on shared walls and boundaries.
In Wales, converting an attached garage usually does not need planning permission unless rights have been removed by condition or the building is listed.
What can change the price or programme?
- A bedroom needs an escape window or a protected route out.
- Losing a parking space can matter on streets with permit parking.
What are the steps?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Garage conversions: common questions
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.
Can a garage become a bedroom?
Yes, with insulation, ventilation and an escape window or protected route out.
Do you work in Monmouth?
Yes. Monmouth is within our coverage for garage conversions, along with nearby Ross-on-Wye and Chepstow.
Garage conversions near Monmouth
- Garage conversions in Ross-on-Wye
- Garage conversions in Chepstow
- Garage conversions in Abergavenny
- Garage conversions in Pontypool
Learn more about garage conversions, or see every project we cover in Monmouth.

