Once the floor comes up and the ceiling gets proper insulation, the usable height in the room drops more than most homeowners plan for, especially in a low garage.
A garage wall is often a single skin of block with no cavity and no damp proof course. Battening and plastering straight over it just hides the problem for a year or two.
Where the up and over door used to be, the new wall needs a proper foundation dug and poured under it, not blockwork sat straight on the edge of the old slab. The brickwork above has to match the house, in bond, colour and pointing, or the join will show for as long as you own the place. Because this changes the outside of the building, it is treated differently to the internal work behind it, and it is usually the one part of a garage conversion that does need planning permission.
The same team plans the job, deals with building control, and is on site through the floor, the walls and the finishing, so nothing gets lost between trades or forgotten between visits.
Every garage is different, so we come and look at the floor level, the wall construction and what the roof is doing before saying what the job involves. Get in touch and tell us about the garage.
Converting a garage always creates a habitable room, so building regulations approval is required whatever the planning position turns out to be. That covers the floor build-up and damp proofing, insulation levels in the floor, walls and roof, ventilation, and the electrics, since a garage consumer unit or a spur off the house ring main will usually not be adequate once the room is lived in. Heating normally means extending the central heating circuit rather than relying on an electric heater. Building control inspects the work at set stages, and a completion certificate is what proves the room was done properly if you ever come to sell.
The consumer unit that runs the lights and the door opener in most garages is not built for a habitable room, so it is usually replaced or the circuit reworked to current regulations. Extending the central heating circuit from the house means a new radiator run and, in some cases, checking the boiler can cope with an extra room. Ventilation matters more than people expect once the room is sealed up and insulated, since a room that used to have gaps around an old door now needs proper background ventilation instead.
An integral garage, built into the house under the same roof, is usually the simpler job because the walls and roof already tie into the house structure. A detached garage is its own small building, so it needs its own foundations checked, its own roof insulated properly, and often a new or extended path or covered link back to the house if you want it to feel connected rather than separate. Both lose the parking space on the drive, which matters more on some streets than others.
Northgate covers Bury St Edmunds and the surrounding villages, along with Newmarket, Mildenhall, Stowmarket and the wider Suffolk, Norfolk and Cambridgeshire area. Converting a garage is usually permitted development if the work stays internal and does not enlarge the building, but infilling the door changes the outside and can need permission, some newer estates carry conditions or covenants requiring the garage to be kept for parking, and permitted development rights are removed in conservation areas, including the Town Centre and Victoria Street conservation areas here in Bury St Edmunds. We check the planning position before any work starts.