Covering Horsham
Alongside Horsham, we also cover Crawley, Horley (11 miles to the north-east) and Haywards Heath.
Homes in the South East
The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.
What is a garage conversion?
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.
- Building control application
- Garage door removal and brick infill with window
- Heating, electrics and data points
How much does a garage conversion cost in Horsham?
Typical ranges for garage conversions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.
| 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?
English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.
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 Horsham homeowners check first?
- Some new-build estates have a planning condition keeping garages for parking.
- A bedroom needs an escape window or a protected route out.
What happens after I enquire?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- 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
Does it need building regulations approval?
Yes, because it becomes a habitable room.
Can a garage become a bedroom?
Yes, with insulation, ventilation and an escape window or protected route out.
Who deals with the council for a project in Horsham?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Garage conversions in nearby towns
- Garage conversions in Crawley
- Garage conversions in Horley
- Garage conversions in Haywards Heath
- Garage conversions in Burgess Hill
Learn more about garage conversions, or see every project we cover in Horsham.