Covering Croydon
Our coverage around Croydon (CR0, CR7, CR9) also includes South Croydon (1 miles to the south) and Carshalton.
Homes in London
Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.
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.
- Building control application
- Heating, electrics and data points
- Plastering, skirting and decoration-ready finish
What will a garage conversion cost?
Indicative costs for garage conversions. London and the South East usually sit towards the top of each range.
| 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 Croydon
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. We check the original permission for your house.
What should I think about before starting?
- Some new-build estates have a planning condition keeping garages for parking.
- The garage floor is often lower than the house and needs raising.
From first call to completion
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- 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.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Questions about a garage conversion in Croydon
How much does a garage conversion cost?
A single integral garage usually costs about £12,000 to £17,000 including VAT. Detached and double garages cost more.
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 you visit a house in Croydon to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Also covering
- Garage conversions in South Croydon
- Garage conversions in Carshalton
- Garage conversions in Mitcham
- Garage conversions in Purley
Learn more about garage conversions, or see every project we cover in Croydon.

