Integral Garage Conversion
A garage built into the house, converted into a bedroom, office, playroom or kitchen extension. Usually the simplest route, as the walls and roof already exist.
Inside the houseA garage is one of the easiest places to find extra space, but only if the details are right. The old door opening, the floor level, damp, insulation and any planning conditions all have to be resolved before the work starts. Xpanza designs garage conversions as one coordinated job, covering planning checks, structural design and building regulations, so the scheme is ready to price from and build from.
How the garage connects to the house decides the structure, the services and the planning questions. Here is what we design most.
A garage built into the house, converted into a bedroom, office, playroom or kitchen extension. Usually the simplest route, as the walls and roof already exist.
Inside the houseA garage joined to the side of the house. We design how the new room links to the existing house, including any opening through the shared wall.
Joined to the houseA separate garage turned into an annexe, home office or studio. The planning route needs more care here, so we confirm it before any design work.
Annexe or studioConverting the garage and extending it at the same time, to the side, rear or above, for a larger scheme designed and engineered as one job.
Convert and extendYou send the measurements, photos and what you want from the space. We send back one coordinated pack, with no gaps between the drawing, the planning check and the structure.
Existing and proposed plans and elevations, showing how the garage becomes a usable room.
We check whether the conversion needs planning permission, including any conditions on the original consent, and confirm it with a lawful development certificate where you want it in writing.
Foundations for the infilled door opening, steels for any new opening into the house, and floor details, calculated and drawn.
Construction detail covering insulation, damp-proofing, ventilation, fire safety and electrics, all in one coordinated set.
The old garage door replaced with a wall and windows that suit the house, drawn to validation standards where needed.
Where the garage sits on or near a boundary and the work affects a shared wall, we can prepare the party wall notices too.
Four things catch people out on garage conversions. We design each of them in from the first draft, not after the work starts.
Many garage conversions don’t need full planning permission, but the original consent or an Article 4 direction can remove those rights. We check both before you commit.
Garage floors are usually lower and uninsulated. The new floor, damp-proofing and insulation are designed so the room feels like part of the house.
The door opening is usually infilled with a new wall, and that wall needs a proper foundation. Our structural design covers it, with a window placed to suit the house.
Connecting to the house means new openings, heating, ventilation and a safe way out. These are planned with the layout, not discovered on site.
Four steps from first measurements to construction-ready drawings, handled by one team.
Measurements, photos of the garage and the house, and what you want from the space. We confirm the planning route and what the conversion will involve.
Layout drawn, window and wall design agreed, the link to the house worked out. You react and adjust until it works.
Planning check or application where needed; structural calculations and building regulations drawings coordinated with the design.
Construction-issue drawings ready for the build, and we answer site and building control queries on our work.
Straight answers to the questions we’re asked most. If yours isn’t answered here, call 07446 197853.
Many garage conversions fall under permitted development, but not all. A condition on the original planning consent or an Article 4 direction can remove those rights, and the rules differ between Wales and England. We check what applies to your property and confirm it, including a lawful development certificate where you want it in writing.
Yes. Even when planning permission isn’t needed, a garage conversion still has to meet building regulations for structure, insulation, damp-proofing, ventilation, fire safety and electrics. We prepare the drawings building control asks for.
The garage door opening is usually infilled with a new wall, which needs a foundation. If you’re opening up to the house, steels may be needed to carry the wall above, and the floor often needs raising and insulating. Our structural calculations cover all of it.
Possibly, and some councils ask for parking to be kept or replaced. We check this at the start, so you know whether the loss of the garage is a planning issue before you spend money on the design.
Yes, into an annexe, home office or studio, for example. The planning route depends on how the new space will be used, so we confirm it first and design the conversion to suit.
It depends on the type of garage and whether you need drawings only or the full package through planning and structural. Use our cost calculator for an instant indicative estimate based on our published rate card. Your exact price is confirmed in writing after a free consultation.
Send us your measurements, a few photos of the garage and what you want from the space. We’ll confirm the route, quote a fixed fee and get the design moving.