One of the first questions homeowners ask when considering a garage conversion is: how much will it actually cost?While every home is different, understanding typical UK garage conversion costs can help you decide whether this type of project is right for you.
Average garage conversion costs
In the UK, a standard garage conversion typically costs around £18,000–£22,000. For most homeowners in Shropshire, Cheshire and Staffordshire, this places garage conversions firmly in the “affordable but high-quality” home improvement category.
The final price depends on:
- The size of the garage (single or double)
- The intended use (bedroom, office, kitchen extension, etc.)
- Structural changes required
- Plumbing and electrics
- Insulation and building regulation compliance
- Finishes such as flooring, lighting and windows
Compared to a traditional house extension, a garage conversion is often 30–50% cheaper, as the main structure already exists.
What’s usually included in the cost?
A professionally managed garage conversion should include:
- Structural alterations
- Insulation to meet current building regulations
- New flooring, walls and ceilings
- Electrical installation
- Heating
- Windows and doors where required
- Plastering and internal finishes
At Midland Garage Conversions, we focus on fully finished, ready-to-use spaces, not basic shells that require further trades.
Does the purpose affect the cost?
Yes. A simple home office or snug is usually at the lower end of the scale. A bedroom with an en-suite or an open-plan kitchen conversion will cost more due to plumbing and layout changes.
However, even higher-spec conversions often remain excellent value when compared to moving house or extending.
Is a garage conversion worth the investment?
In many cases, a well-designed garage conversion can increase a property’s value by 10–15%, especially when it adds a desirable room like a bedroom or office. For homeowners with growing families or remote working needs, the lifestyle benefits can be just as important as the financial return.
If you’re budgeting around £20,000 and want to make better use of your existing space, a garage conversion is one of the smartest home improvements available.