Garage Conversions · Midlands

Garage conversions: a room you’ll actually use.

A home office, an extra bedroom, a gym, or a self-contained annexe — garage conversions are one of the most cost-effective ways to add usable space, without extending your home’s footprint.

£8k–£35kTypical cost range
2–8 wksBuild time by specification
No depositPay as the job goes
BeforeThe same garage before the conversion: old up-and-over door and the concrete floor broken out ready for a new insulated floor
AfterFinished garage conversion by DOT Services: a bright utility room with fitted units, a sink under a new window, and space for a washer and dryer
Recent Conversion

From a cold garage with a broken-up floor to a proper utility room

We took out the old garage floor, laid a new insulated one, bricked up the door opening around a new window, and fitted out a bright utility room, with units, a sink and space for the washing machine and dryer.

Talk to us about your garage →
Specification

Choose your specification

Three common levels — we’ll help you pick the right one for how you’ll use the space.

Basic

£8,000–£14,000
Office, utility room, or gym · 2–4 weeks
  • Insulated floor, walls & ceiling
  • Door infill with matching brick or window
  • Power, lighting & one radiator
  • Plastered & decorated
  • No plumbing
Most popular

Mid-Range

£14,000–£22,000
Bedroom or playroom, with or without en-suite · 4–6 weeks
  • Everything in Basic, plus:
  • Escape window where Building Regs require it
  • Extended central heating loop
  • Optional en-suite plumbing
  • Built-in storage/wardrobe

High-Spec

£22,000–£35,000+
Self-contained annexe · 6–8 weeks
  • Everything in Mid-Range, plus:
  • Kitchenette with full plumbing
  • Full shower room
  • Premium finish throughout
  • Suits independent living for family members
Ideas

Popular uses

Home Office
Bedroom
Gym
Playroom
Annexe
Good to know

Planning permission

Most garage conversions fall under Permitted Development, provided you’re not significantly changing the external appearance and there’s no separate dwelling being created. On many newer estates, though, the original planning permission requires the garage to be kept for parking or removes Permitted Development rights, so you’d need planning permission. We check your property’s planning history first. Homes in conservation areas, and listed buildings, may need consent — we check this at the quote stage.

Good to know

Building Regulations

Every conversion needs Building Regs sign-off regardless of planning status — covering insulation (Part L), fire safety, ventilation, and structural stability. A Lawful Development Certificate is also worth getting for when you sell.

Questions

Common questions

Will I lose value by losing my garage?

Rarely — the extra living space usually adds more value than the garage itself, especially where off-street parking or a driveway remains. Losing the garage matters more where parking is scarce.

Can I still store things in a converted garage?

If you still want some storage, we can convert just part of the garage and leave the rest as a store — a popular middle-ground option.

Do I need an architect?

Most straightforward garage conversions don’t need one — we handle the drawings and Building Regulations submission as part of our standard process.

What’s the minimum size for a bedroom conversion?

There’s no Building Regulations minimum bedroom size, but we’d recommend at least 7.5m² for a single bedroom (the national space standard) — we’ll confirm this fits at your free site visit.

Keep reading

Explore further

Extension Cost Guide (Midlands 2026)

Compare against building out instead of converting.

Read →

Outdoor & Garden Building Work

Patios, garden refurbishments, sheds and outbuildings.

Read →
Free Site Visits · No Obligation

Thinking about converting your garage?

Free, no-obligation site visit — we’ll tell you what’s possible and what it’ll cost.

Garage conversions near you

Based in Uttoxeter, working across Staffordshire, Derbyshire and the Midlands. Find local planning advice for your area.

Got a question? Chat with us — we’ll help you plan your project.