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 Durham?
In Durham, a garage conversion typically costs £16,000–£27,000 for a single integral garage, including VAT at 20% (standard rate). The guide for Durham reflects typical costs in the North East, roughly 10% below the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £16,000–£27,000 |
| Higher specification | £27,000–£34,000 |
Your quote will depend mainly on:
- Heating and flooring
- Integral, attached or detached
- Foundations under the old door opening
- Single or double garage
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a garage conversion in Durham?
Before anything is built in Durham, we confirm which approvals apply 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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most garage conversions:
- Electrics, heating and plastering
- Building control completion
- New wall and window to replace the garage door
- Wall and ceiling insulation
- Foundation check under the garage door opening
- Floor raised with insulation and damp-proof membrane
How long does it take?
Build time is typically 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 Durham
The North East has many terraced streets and post-war semis, where rear extensions and loft conversions are popular ways to gain space.
Our Durham coverage includes postcode districts DH1, and we also work in nearby places such as Chester-le-Street, Houghton-Le-Spring and Stanley.
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 in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about garage conversions in Durham
Who approves a garage conversion in Durham?
Planning matters in Durham go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How long does it take?
Typically 3 to 6 weeks on site.
Will losing the garage affect parking?
Councils sometimes object if on-street parking is under pressure. We check local parking standards.
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 Durham?
In Durham, a garage conversion typically costs £16,000–£27,000 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.