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  1. Welcome to Planning Portal
  2. Do you need permission?
  3. Common projects
  4. Flats and maisonettes
  5. Introduction

Flats and maisonettes

Select...
  1. Introduction
  2. I want to convert a house (or single flat) to a number of flats, bed-sits or other form of subdivision
  3. I want to build an extension to my ground-floor flat
  4. I want to build a loft conversion in my top floor flat
  5. I want to change the windows of my flat
  6. I want to paint the outside of my flat
  7. I want to install a satellite dish for my flat
  8. I want to convert a space above a shop into a flat
  9. I want to convert flats into a house (amalgamation/deconversion)
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Introduction

The planning regime for flats and maisonettes differs in many important ways to that which covers houses.

Bear in mind that the permitted development rights which apply to many common projects for houses do not apply to flats. Use the links on the left to find information about several common projects specific to flats and maisonettes.


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)

Find a professional


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

      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 disclaimer.

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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.