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 Thornaby-on-Tees?
In Thornaby-on-Tees, a garage conversion typically costs £16,500–£28,000 for a single integral garage, including VAT at 20% (standard rate). Prices across Yorkshire and the Humber are typically 7% below the UK average for this kind of work, which is reflected in the range for Thornaby-on-Tees. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £16,500–£28,000 |
| Higher specification | £28,000–£35,000 |
Your quote will depend mainly on:
- Single or double garage
- Bathroom or kitchen
- Whether planning permission is needed
- Integral, attached or detached
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 Thornaby-on-Tees?
The approval route for Thornaby-on-Tees 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.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
From survey to sign-off, the job normally involves:
- Floor raised with insulation and damp-proof membrane
- Foundation check under the garage door opening
- Building control completion
- Planning check for removed permitted development rights
- Drawings and building control application
- New wall and window to replace the garage door
How long does it take?
Expect 3 to 6 weeks on site. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Thornaby-on-Tees
In Yorkshire, through-terraces and back-to-backs have particular constraints, while semis and detached houses suit larger extensions.
Projects in Thornaby-on-Tees (TS17) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 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 Thornaby-on-Tees
Do you build garage conversions in Thornaby-on-Tees?
Yes. We build garage conversions across Thornaby-on-Tees, including postcodes TS17. Every project starts with a free home visit.
Do I need planning permission for a garage conversion?
Usually not if the work is internal and the house keeps its permitted development rights. Many newer houses have planning conditions that remove those rights, in which case an application is needed.
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.
How much does a garage conversion cost in Thornaby-on-Tees?
In Thornaby-on-Tees, a garage conversion typically costs £16,500–£28,000 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Can the floor be level with the house?
Yes. The garage floor is raised and insulated to match the house floor level.