The short answer
Converting a garage into a living room, snug or playroom typically costs £8,000–£18,000 in 2026, because a dry reception room needs no plumbing. The work is insulation, damp-proofing, the door infill, electrics, heating and finishing — making it one of the more affordable conversions. Larger rooms, bi-fold doors or a higher finish push the figure up. Building regulations apply. These are typical illustrations, not quotes — see the main cost guide for whole-job context.
A living room, snug, playroom or home office is among the most straightforward and cost-effective garage conversions, because a dry reception room avoids the plumbing and drainage that drive up the cost of kitchens and bathrooms. The main spend is bringing the shell up to habitable standard and finishing it well. This guide sets out realistic 2026 figures and what affects them. All figures are typical illustrations, not quotes, and the work should be carried out by a garage conversion specialist who handles building control.
Living room conversion at a glance
- Single garage to living room £8,000–£18,000
- With bi-fold or French doors £12,000–£22,000+
- Double garage to reception room £15,000–£28,000+
- Plumbing needed No (dry room)
- Usable space (single garage) ~12–16m²
- Planning Usually permitted development
Why a living room is a cheaper conversion
A reception room is one of the cheapest rooms to convert a garage into because it needs no water supply or drainage. The budget goes on insulating and damp-proofing the floor, walls and roof; infilling the garage door opening, often with a window or French doors for light; adding electrics, heating and lighting; and plastering, flooring and decorating. Because there is no plumbing, a living-room conversion usually sits at the lower end of the overall garage conversion range. For the full scope of work, see what is involved in a garage conversion.
| Option | Typical cost (2026) | Main cost drivers |
|---|---|---|
| Single garage, basic finish | £8,000–£14,000 | Insulation, door infill, finish |
| Single garage, higher finish / doors | £12,000–£22,000+ | Bi-fold or French doors, joinery |
| Double garage reception room | £15,000–£28,000+ | Larger area, glazing, finish |
What pushes a living-room conversion up
The main upgrades that add cost are glazing and finish. Replacing the garage door opening with bi-fold or French doors brings in more light and a better connection to the garden but costs more than a simple window. A higher specification — better flooring, fitted joinery, integrated lighting or underfloor heating — also lifts the figure. Knocking through to an adjacent room to create open-plan space adds structural work. For how a converted reception room weighs up against the alternatives, see garage conversion vs extension.
Heating, light and regulations
Even a dry room must meet building regulations for insulation and ventilation, and the conversion needs adequate heating — usually an extension of the existing central heating or electric heating — and enough natural light, which is why the door infill often includes a window or glazed doors. A garage conversion specialist designs these in and arranges building control sign-off. This is general information; your actual cost depends on your specific garage and finish, and the work should be carried out by a specialist who handles building control.
Compare garage conversion quotes
A reception-room conversion is one of the more affordable options, but glazing and finish change the figure. Compare itemised quotes from FMB-registered or building-control-approved specialists in your area.
Frequently asked questions
How much does it cost to convert a garage into a living room?
Typically £8,000–£18,000 in 2026 for a single-garage reception room, because a dry room needs no plumbing. Bi-fold or French doors, a higher finish or a double garage push the figure up. These are typical illustrations, not quotes.
Is a living room cheaper to convert than a bedroom or kitchen?
A living room is usually cheaper than a kitchen or a bedroom with an en-suite, because it needs no plumbing or drainage. A plain bedroom is similar in cost to a living room; the difference is mostly fire-escape requirements. See converting into a bedroom and converting into a kitchen or utility.
Do I need planning permission to convert a garage into a living room?
Usually not, as converting within the existing footprint normally falls under permitted development — though this excludes flats, listed buildings and conservation areas, and areas where permitted development rights have been removed. Building regulations always apply. See planning permission for a garage conversion.
Sources & further reading
- Federation of Master Builders (FMB) — garage conversion costs and finding registered builders
- Planning Portal — permitted development for garage conversions
- GOV.UK / Building Regulations Approved Documents L (energy) and C (damp) — habitable room standards
- RICS — guidance on home improvement costs and value
This is general information, not advice for your specific property or conversion, and not a quote. Figures are typical illustrations only. The work should be carried out by an FMB-registered or building-control-approved garage conversion specialist. We are an independent information and introduction service, not a builder.