How much is a part garage conversion in Teesside?

£6,000 to £12,000, finished and certified. It is cheaper than a full conversion mainly because the garage door and front wall stay untouched.

How much storage do I actually keep?

Typically the front 1.5 to 2 metres of the garage, enough for bikes, a freezer, tools and garden kit. The exact split is your call, and a good quote will mark it on a plan.

Does a part conversion need building regulations approval?

Yes. The converted part is habitable space, so the floor, insulation, ventilation, electrics and fire safety all go through building control exactly as a full conversion does.

How does the new room get natural light?

Through a new side or rear window, a glazed door, or a rooflight, depending on your garage's position. This is the most important design decision in a part conversion and should be settled before quoting.

Will a part conversion hurt resale less than a full one?

Generally yes: you keep usable garage storage and the house still reads as having a garage from the street, which matters to buyers on estates where parking and storage are tight.

Part garage conversions in Teesside

A part garage conversion in Teesside costs £6,000 to £12,000 in 2026. The back two-thirds of the garage becomes a finished, insulated room and the front third stays as storage behind the original garage door, so you gain living space without losing somewhere for the bikes, tools and freezer.

Get Quote Call 01642 967 658 From £6,000

Garage front section kept as storage with shelving behind the original door

What a part conversion actually is

A part conversion splits the garage in two. A new insulated internal wall goes up across the garage, typically a third of the way back, and everything behind it is converted to the same standard as a full conversion: built-up damp-proofed floor, insulated walls and ceiling, electrics, heating, plaster and decoration. The front section keeps the original garage door and stays as genuinely useful storage, accessed from outside as before.

It is the most popular garage conversion on Teesside's newer estates, where the garage is the only storage the house has and losing it entirely would mean a garden shed eating the lawn. You give up roughly two metres of garage depth and gain a 10 to 14 square metre room.

What they cost on Teesside

Expect £6,000 to £12,000 for a part conversion, finished and signed off. The lower end is a simple office or playroom with no plumbing; the upper end adds better glazing, underfloor heating or more extensive electrical work. Because the garage door stays, there is no front wall to rebuild, which is exactly where the saving over a full conversion comes from.

What a proper part conversion quote specifies

The dividing wall: position, construction and insulation, with a door into the house if you want one, and the storage side left weathertight and secure.
The floor: damp-proof membrane, insulation and build-up matched to the house floor level, specified in writing.
Daylight: how the new room gets natural light with no front window available, usually a new side or rear window, a door with glazing, or a rooflight.
Insulation and heating: walls, floor and ceiling to current Part L standards, with a heating solution sized for the room.
Building control fees: included, with the completion certificate at the end.

The one design decision that matters

Daylight. A part conversion has no front wall to put a window in, so the room needs light from somewhere else: a window in the side or rear wall, a glazed door, or a rooflight if the garage is detached or single-storey with roof access. A good quote shows the daylight plan on a drawing, not a shrug. Get it right and the room feels like it was always there; get it wrong and it feels like a converted cupboard.

Part vs the alternatives

Choose a part conversion when storage matters as much as space, or when the house is on an estate where losing parking or garage storage would hurt resale. Choose a full conversion for the maximum room. For specific uses, see garage to home office or garage to bedroom. The ideas guide compares every layout.