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Flats and maisonettes

I want to convert a house (or single flat) to a number of flats, bed-sits or other form of subdivision

Planning Permission

To subdivide a house into multiple units you must obtain planning permission.

If your house is a listed building it is likely you will need listed building consent and you should contact your local planning authority for advice before you start work. Works to a listed building that affect its special historic character without consent is a criminal offence.

If your flat is in a conservation area and your proposals involve an element of demolition then you may need to apply for planning permission for relevant demolition in a conservation area and you should contact your local planning authority for advice.


Building Regulations

  • Conversions of properties require approval under the Building Regulations
  • You may need to consult the Fire Service regarding issues relating to fire escapes
  • The Housing Act 20041 requires that sub-divided buildings meet standards and houses in multiple occupation are licensed.


Find a Trade Professional

Use our partner directories from CIAT, FMB, RIBA, or RTPI to find an chartered architectural technologist, builder, architect or planning consultant to help with your project or development.

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Useful links

Make an application Planning consultancy calculator
    1. http://www.legislation.gov.uk/ukpga/2004/34/contents

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing and Communities (DLUHC). All content © 2024 Planning Portal.

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing and Communities (DLUHC). All content © 2024 Planning Portal.