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 Tooting?
In Tooting, a garage conversion typically costs £23,500–£39,000 for a single integral garage, including VAT at 20% (standard rate). Building costs in London run about 30% above the UK average, and the figures for Tooting are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £23,500–£39,000 |
| Higher specification | £39,000–£49,000 |
What moves the price most:
- Whether planning permission is needed
- Bathroom or kitchen
- Single or double garage
- Foundations under the old door opening
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a garage conversion in Tooting?
The approval route for Tooting is set by planning law 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.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
Handled as part of most garage conversions:
- Building control completion
- Electrics, heating and plastering
- Floor raised with insulation and damp-proof membrane
- Foundation check under the garage door opening
- Drawings and building control application
- Planning check for removed permitted development rights
How long does it take?
Allow 3 to 6 weeks on site. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Tooting
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
We work across Tooting and neighbouring areas such as Streatham, Mitcham and Balham. Postcodes we cover in Tooting include SW17 and SW19.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 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 Tooting
Can the floor be level with the house?
Yes. The garage floor is raised and insulated to match the house floor level.
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.
Will losing the garage affect parking?
Councils sometimes object if on-street parking is under pressure. We check local parking standards.
How long does a garage conversion take in Tooting?
Typically 3 to 6 weeks on site. Design and approvals beforehand usually take 6 to 12 weeks.
How much does a garage conversion cost in Tooting?
In Tooting, a garage conversion typically costs £23,500–£39,000 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.