A garage conversion turns an integral or attached garage into a warm, habitable room by insulating the floor, walls and ceiling, replacing the garage door with a wall and window, and adding heating, lighting and finishes.
We offer a garage conversion across Tyne and Wear, and Sunderland is one of the places we cover, along with nearby Seaham, Washington and Houghton-Le-Spring. Before anything is agreed we visit, check the existing structure and talk through your options. You then receive a written quote setting out the full scope; for most homes in the North East it sits within £11,000–£25,000 including VAT.
- Guide price
- £11,000–£25,000 inc VAT
- Time on site
- 2–6 weeks on site
- Postcodes
- SR1, SR2, SR4, SR5 and SR6
- Planning rules
- England
- Local area
- Tyne and Wear
- Survey
- Free, with a written quote
How much does a garage conversion cost in Sunderland?
No two jobs cost exactly the same, but the ranges below give a fair picture of a garage conversion in Sunderland. Pricing for the North East runs about 10% below the national guide, and the overall guide is £11,000–£25,000 with VAT included. We'll confirm your figure after surveying the property for free.
| Type of job | What it usually involves | Guide in Sunderland |
|---|---|---|
| Integral single garage | A garage within the house footprint, with sound walls and a roof already in place. | £9,000–£16,000 |
| Attached single garage | A garage beside the house that may need roof, wall or floor upgrades. | £12,500–£22,500 |
| Double or detached garage | A larger or separate building, often with a shower room or kitchenette. | £20,000–£40,500 |
The main things that change the figure:
- Condition of the floor, walls, roof and foundations
- Whether a shower room or kitchenette is included
- Heating method and ventilation for the new room
- Window and door choices and the level of finishes
What do you get?
- Infilling the garage door opening with insulated wall and new window
- Damp-proof membrane, insulated floor and screed or raised timber floor
- Insulated walls and ceiling built to building regulations
- New internal door or opening into the house
- Plastering, skirting and decoration-ready finish
- Building control inspections and completion certificate
What are homes like around Sunderland?
Tyneside flats, pairs of upper and lower flats behind a terraced front, are a distinctive feature of Newcastle and Gateshead. Sunderland is known for its single-storey terraced 'Sunderland cottages', and both cities have Victorian brick and stone terraces, interwar estates and post-war housing. Washington was built as a new town from the 1960s.
Terraces and Tyneside flats commonly need repointing, roof work and window replacement. Houses suit loft rooms and rear extensions, and new-town homes often take garage conversions and cladding upgrades.
If your house in Sunderland fits one of these patterns, it helps us anticipate what a garage conversion will involve, though we always confirm the details on site.
Permissions for a garage conversion in Sunderland
Homes in Sunderland come under the regulations for England, summarised below. We don't rely on general rules alone: we confirm the position for your address with the council before a quote goes out.
In England, converting an attached or integral garage into a room usually needs no planning permission, unless a planning condition on your estate has removed permitted development rights (common on newer houses). Changing the garage door to a wall and window is generally fine.
Building Regulations approval is needed: foundations for the infill wall, a damp-proof course, insulation, ventilation and fire safety.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
From survey to handover
A visit to your home
It starts with a survey at the property, free of charge. We check condition, access and services, ask how you want the finished result to look, and answer any questions you have about a garage conversion.
Written quote
We put everything into a written, fixed-price quote: the specification, what's excluded, staged payments and the expected time on site. Take whatever time you need to decide; there's no pressure to commit.
Dates and permissions
With the quote agreed, we book the work in and handle preparation: permissions where needed, building control notifications, material orders and access arrangements for your Sunderland property.
On site to finish
On site, the agreed plan is followed and any change is put in writing first. At completion we do a final clean, go through the snagging list with you and leave you with the relevant documents.
Why homeowners choose us
Frequently asked questions
How long does a garage conversion take?
A straightforward integral garage conversion usually takes two to four weeks on site. Attached garages that need roof or wall upgrades, and conversions with a shower room, typically take four to six weeks. Detached garages turned into annexes can take longer. Before work starts, allow time for drawings and building control approval. We give you a clear programme with your written quote.
Will I need building regulations approval?
A garage conversion needs building regulations approval because the space becomes a habitable room. Building control checks that the new wall in the door opening has proper foundations, that the floor has a damp-proof membrane and insulation, and that walls and ceiling meet insulation standards. Ventilation, fire safety and escape routes are also checked. In Scotland a building warrant is normally needed before work starts.
Do you cover Seaham, Washington and Houghton-Le-Spring?
Yes. As well as Sunderland, we cover Seaham, Washington and Houghton-Le-Spring and the rest of Tyne and Wear. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
Who do I deal with during the job?
One point of contact manages your project from survey to handover. They schedule the trades working under our contract, keep you updated on progress, and are the person to call with any question. You don't need to coordinate builders, electricians or decorators separately, because that is part of what we do.
Do I need planning permission for a garage conversion?
Whether a garage conversion needs planning permission depends on the works, your home's location, whether it is listed or in a conservation area, and which UK nation you are in. In England, converting an integral or attached garage is often permitted development where changes are mostly internal, unless a planning condition has removed those rights, which is common on newer estates. We check what applies before quoting.
Nearby towns
Our coverage in Sunderland includes SR1, SR2, SR4 and SR5. We also travel to Seaham, Washington and Houghton-Le-Spring, so neighbouring addresses are looked after on exactly the same terms as those in town.