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  1. Welcome to Planning Portal
  2. Do you need permission?
  3. Common projects
  4. Garage conversion
  5. Is building regulations approval needed for a garage conversion?

Garage conversion

Is building regulations approval needed for a garage conversion?
  1. Planning Permission
  2. Is building regulations approval needed for a garage conversion?
  3. Building regulations: In-fill garage door
  4. Building Regulations: Flooring
  5. Building Regulations: Walls below ground level
  6. Building regulations: Ventilation
  7. Garden buildings
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Is building regulations approval needed for a garage conversion?

The conversion of a garage, or part of a garage, into habitable space, will normally require approval under the building regulations.

General guidance on the performance expected of materials and building work in order to comply with the building regulations and practical examples and solutions on how to achieve compliance for some of the more common building situations can be found in the approved documents section.

Approved documents (https://www.planningportal.co.uk/applications/building-control-applications/building-control/approved-documents)

Approved documents


Further Information 

The following pages give an indication of some of the elements normally required to satisfy the requirements of the Regulations when converting a garage.

  • Doors and windows1
  • Drainage2
  • Electrics3
  • External walls4
  • Internal walls5
  • Roofs6

Find a Trade Professional

Use our partner directories to find a planning or building professional to help with your project or development.

Find a professional (https://www.planningportal.co.uk/planning/planning-applications/find-a-trade-professional)

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Useful links

Make an application (https://www.planningportal.co.uk/app/applications)

Make an application

Speak to an expert (https://www.planningportal.co.uk/permission/planning-guidance-service)

Speak to an expert

Studio Charrette consultancy calculator (https://www.planningportal.co.uk/permission/home-improvement/planning-consultancy-calculator)

Studio Charrette consultancy calculator

Sell your site with Land Match (https://www.planningportal.co.uk/permission/commercial-developments/sell-your-site)

Sell your site with Land Match
    1. https://www.planningportal.co.uk/permission/common-projects/doors-and-windows/building-regulations
    2. https://www.planningportal.co.uk/permission/common-projects/drains-and-sewers/building-regulations
    3. https://www.planningportal.co.uk/permission/common-projects/electric-vehicle-charging/electric-vehicle-chargers
    4. https://www.planningportal.co.uk/permission/common-projects/external-walls/building-regulations
    5. https://www.planningportal.co.uk/permission/common-projects/internal-walls/what-building-regulations-apply-to-internal-walls
    6. https://www.planningportal.co.uk/permission/common-projects/roof/building-regulations-work-to-an-existing-roof

    Disclaimer

    This is an introductory guide and is not a definitive source of legal information. Guidance is based on national rules, but additional local rules may also affect what permissions are needed. You should check if this is the case before applying or starting work.
    Guidance here relates to the planning regime for England, the policy in Wales may differ. If in doubt contact your local planning authority. Please note, local authorities may charge a fee for pre-application advice.
    Read our full disclaimer1.

    1. https://www.planningportal.co.uk/services/terms-and-disclaimer/terms-and-conditions

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      The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2025 Planning Portal.

      The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2025 Planning Portal.