Get Rapid Plans Ltd

Architectural Services

Phone: +44 7507 665812 or +44 7538 938251


Get Rapid Plans Ltd

Architectural Services

Phone: 07507 665812 or 07538 938251


Thinking of turning that dusty garage into a functional living space? Garage conversions are a popular way to add value to your home and create extra room without the hassle of a major extension. But how much does it cost? Let’s break down the factors that influence garage conversion costs in the UK in 2024:

Average Garage Conversion Costs

  • Single Garage: please us directly
  • Double Garage: please call us directly

Remember, these are just averages. The actual cost of your garage conversion will depend on several key factors, including:

Garage Conversion Cost in the UK

Factors That Influence Cost:

  1. Size and Type:
    • The larger your garage, the more it will cost to convert due to increased material and labour requirements.
    • The type of garage also matters:
      • Integral Garages (attached to your home with shared walls) are usually the most cost-effective to convert.
      • Attached Garages (connected to your home but with separate walls) may require additional work for insulation and soundproofing.
      • Detached Garages often involve more extensive work on utilities (electricity, plumbing, etc.) and may require planning permission, adding to the cost.
  2. Complexity of Conversion:
    • A simple conversion with minimal structural changes (e.g., adding insulation, plastering, and flooring) will be much cheaper than a more complex project that requires knocking down walls, adding windows, or significant alterations to the structure.
  3. Desired Finish:
    • The quality and type of materials you choose for flooring, fixtures, lighting, and finishes will significantly impact the overall cost. A high-end, luxury conversion will naturally cost more than a basic, functional one.
  4. Intended Use:
    • The purpose of your conversion will influence the cost. Converting a garage into a living room or bedroom may be less expensive than creating a kitchen or bathroom, which requires plumbing and specialized installations.
  5. Location:
    • Labour costs can vary depending on where you live in the UK. Costs tend to be higher in London and the South East compared to other regions.
  6. Professional Fees:
    • Don’t forget to factor in professional fees, such as architectural design, structural engineering, planning permission applications (if required), and building regulations approval. These costs can add up quickly, so it’s important to budget for them.
  7. Unexpected Issues:
    • Older garages might have hidden problems like dampness, structural issues, or outdated wiring that need to be addressed, adding to the overall cost.

By understanding these factors, you can start planning your garage conversion budget realistically and avoid any surprises along the way.

Cost Breakdown (Estimated):

Here’s a more detailed breakdown of the potential costs involved in a single garage conversion in the UK:

Pre-Construction Costs:

  • Planning Permission: £xxx (if required, depending on the extent of the conversion and local regulations)
  • Building Regulations Approval: £xxx – £xxx
  • Architect’s Fees: £xxx – £xxxx (for design and drawings)
  • Structural Engineer’s Fees: £xxx – £xxx (if structural changes are required)
  • Party Wall Agreement: £xxx- £xxxx per neighbour (if your garage shares a wall with a neighbour’s property)

Construction Costs:

  • Structural Work:
    • Removing Walls: £3xx – £xxxx
    • Adding Steel Beams (if needed): £xxx – £xxxx
    • Damp-proofing and Membrane: £xxx – £xxxx
  • Doors and Windows:
    • New Garage Door (if replacing): £xxx – £xxxx
    • New External Door(s): £xxx – £xxxx
    • New Windows: £6xx – £1xxx
  • Insulation:
    • Walls, Floor, and Ceiling: £7xx – £1xxx
  • Flooring:
    • Screed and Levelling: £5xx – £1xxx
    • Final Floor Finish: £5xx – £1,xxx(depending on the material chosen)
  • Utilities:
    • Electrics (rewiring, lighting, sockets): £1,xxx – £4,xxx
    • Plumbing (for kitchens or bathrooms): £1, xxx- £xxxx
    • Heating (radiators or underfloor heating): £xxx – £2,xxx

Finishing Costs:

  • Plastering: £1,xxx – £xxxx
  • Decorating and Painting: £xxx – £xxxx
  • Skirting Boards and Architraves: £xxx – £xxx
  • Fixtures and Fittings: (lights, switches, sockets, taps, etc.): Varies widely depending on choice and quality
    Additional Costs (if applicable):


    • New Roof: £xxxx- £xxxx+
    • External Cladding: £xxxx- £xxxx+

    Interior Design Services: £xxx – £xxxx+


  • These are just estimates. The actual costs can vary significantly depending on the specifics of your project, the quality of materials, and the rates charged by professionals in your area.
  • It’s always best to get detailed quotes from several reputable contractors before making any final decisions.
  • Be sure to factor in a contingency budget (around 10-20%) to cover unexpected expenses that might arise during the conversion process.

Tips to Save Money on Your Garage Conversion:

Converting a garage into a functional living space doesn’t have to break the bank. Here are some clever ways to cut costs without sacrificing quality:

1.DIY Where Possible:

If you’re handy, tackle some of the less complex tasks yourself, such as painting, decorating, or installing flooring. This can significantly reduce labour costs.

Be realistic about your DIY abilities, though. Don’t attempt electrical or plumbing work unless you’re qualified.

2.Choose Affordable Finishes:

Opt for cost-effective materials for flooring, countertops, and fixtures. Consider laminate or vinyl flooring instead of hardwood, and explore less expensive countertop options like laminate or solid surface.

Look for sales and discounts at DIY stores or reclaim yards for second-hand materials that are still in good condition.

3.Shop Around for Quotes:

Get at least three detailed quotes from reputable builders and contractors. This will help you compare prices and ensure you’re getting a fair deal.

Don’t automatically go for the cheapest quote. Consider the builder’s experience, reputation, and the quality of materials they propose.

4. Consider a Phased Approach:

If your budget is limited, prioritize essential work, such as insulation, structural changes, and basic utilities. You can always add finishing touches and upgrade fixtures later when you have more funds available.

5. Optimise Your Existing Space:

Before making major structural changes, explore ways to maximize the use of the existing space. Can you add clever storage solutions or create multi-functional areas to make the most of the square footage?

6. Be Energy Efficient:

Invest in good insulation and energy-efficient windows and doors to reduce heating and cooling costs in the long run.


Don’t be afraid to negotiate with builders and suppliers. You might be surprised at how much you can save by simply asking for a better price.

8.Plan Ahead:

Careful planning is key to avoiding costly mistakes and unexpected expenses. Make detailed plans and get all necessary approvals before starting any work.

By being resourceful and strategic, you can create a beautiful and functional living space from your unused garage without overspending.

Ready to Transform Your Garage?

A garage conversion is a fantastic investment that can add value to your home and provide much-needed extra space. Get in touch with local professionals for accurate quotes tailored to your specific project and budget.

Let me know if you’d like more information on any particular aspect of garage conversions!