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Garage Conversion Specialists in York | Monument Garage Conversions
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Turn a cold, unused garage into a warm, liveable part of your home.
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Garage Conversions in York
Looking to transform your underused garage into a beautiful, functional living space? At Monument Garage Conversions, we specialise in high-quality garage conversions across York, Selby, and surrounding areas, helping homeowners unlock extra space, boost property value, and create rooms with real purpose — whether it’s a home office, gym, music room, or annex.
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Why Convert Your Garage?
  • Maximise your square footage without extending your home
  • Increase property value by up to 20%
  • Avoid the cost and hassle of moving house
  • Quick turnaround (typically 2–3 weeks)
  • Create a bespoke space tailored to your lifestyle
Whether attached or detached, single or double — we’ve converted them all.
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Popular Garage Conversion Ideas
  • Home Office – Work-from-home space with built-in storage and natural light
  • Garden Room – Bi-fold doors, insulation, and beautiful finishes
  • Annexe / Guest Room – Fully self-contained with en-suite
  • Music Studio – Acoustic insulation, soundproofing, and ambience lighting
  • Playroom or Teen Den – Durable flooring, sockets, heating, and Wi-Fi points
  • Utility or Boot Room – Integrated plumbing and waterproof finishes
Got your own vision? We’ll help you bring it to life.
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Do You Need Planning Permission?
Most garage conversions in York do not require planning permission if:
  • You’re not increasing the size of the building
  • The structure is already part of your property
  • You’re not altering the roof height
This falls under Permitted Development Rights, but some exceptions apply:
  • If your property is listed
  • If you're in a conservation area
  • If there’s a planning condition restricting garage use
We handle all planning checks for you — for peace of mind.
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What About Building Regulations?
All garage conversions must comply with UK Building Regulations, even if planning isn’t needed. These include:
  • Insulation & thermal performance (Part L)
  • Ventilation (Part F)
  • Fire safety (Part B)
  • Structural alterations (Part A)
  • Drainage & plumbing (Part H)
  • Electrics (Part P)
We work with building control officers throughout your project to ensure full certification on completion.
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Garage Conversion Costs in York

Type of Conversion

Typical Cost (from)

Basic Single Garage Room (plastered)

£8,500 – £11,000

Double Garage Conversion

£14,000 – £18,000

Garage to Office / Studio

£10,000 – £13,000

Garage to Annexe (with en-suite)

£18,000 – £25,000

Detached Garage with Garden Room Access

£12,000 – £20,000


Extras:
  • Knock-through to main house: £900–£1,300
  • Bi-fold/patio doors: £1,200–£2,000
  • Additional window: £800+
  • Floor finishes: £15–£50/m²
All prices include labour, materials, and building control.
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How It Works
Make an Enquiry
Tell us what you want from your garage conversion.
Design Session
We’ll visit your home, listen to your ideas, and offer expert guidance to help shape the perfect conversion and present HD mock ups of exactly how your garage conversion will look.
Quote
You’ll receive a clear, detailed quote with no hidden extras. What you see is what you pay — simple.
We Build It
Our team handles everything from start to finish with care, respect, and quality workmanship throughout.
Enjoy Your New Space
Step into your brand new space — fully finished, completely transformed, and ready to enjoy.
Why Choose Monument Garage Coversions
  • Fully Qualified Tradesmen
    Every project is delivered by experienced, fully qualified tradesmen who take pride in their work.
  • Expert-Led From Start to Finish
    With years of specialist knowledge in garage conversions, we bring the insight and care your project deserves.
  • A Complete, Hassle-Free Service
    From your first enquiry to the final finish, we handle everything — so your journey feels seamless and stress-free.
  • Trusted by Homeowners Across Yorkshire
    We’re proud to be the go-to team for garage conversions in York, Selby and surrounding areas.
  • Built to a Lasting Standard
    We focus on quality materials, precise workmanship, and smart design — so your new space feels solid, comfortable and complete.
  • Clear, Friendly Communication
    You’ll always know what’s happening and who’s doing it, with a dedicated point of contact from start to finish.
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