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Do I need planning permission to upgrade to double glazed windows?

For houses, replacing windows with double glazing usually doesn’t require planning permission, provided the style and appearance are similar to the original. However, if you live in a flat/maisonette, listed building, or a conservation area, planning permission or listed building consent may be required, especially if the changes affect the external appearance.

Read more about planning permission for windows and doors for houses

Read about planning permission for windows and doors for flats and maisonettes

Common Questions

What is an improvement notice?

An improvement notice is a notice served by a local authority requiring a property owner to carry out specified works to bring a building into compliance with the legal standards. These are most commonly served to landlords to make a building safe.

The notice will specify what works should be completed and when it should begin and be completed by.

Failure to comply with an improvement notice is a criminal offence.

What is a party wall?

A wall is a 'party wall' if it stands astride the boundary of land belonging to two (or more) different owners, for example the wall separating two semi-detached properties.

Some kinds of work carried out to a property may not be controlled by the building regulations, but may be work which is covered by the Party Wall etc. Act 1996. This is a separate piece of legislation with different requirements to the building regulations.

To find out more about party walls, visit Planning Portal.

Do I need planning permission to display a sign in my front garden advertising my business?

You likely will require advertisement consent to display a commercial advertisement outside your home, especially when the company does not operate from that location.

 It is more likely that permission will be required where:

  • the sign is over 0.3 square metres or illuminated
  • the sign is visible from a road
  • the building is listed or in a designated area then consent

Find out more about advertisement consent on Planning Portal.

How do I find out if planning permission will be granted on a house I am interested in buying?

You don't actually need to own land or property to apply for planning permission for it. This means you can apply for permission before deciding whether or not to buy a piece of land.

The following people must be informed about a planning application relating to land or buildings that they have an interest in:

  • The owner or all the part-owner/s (if you are not the full owner)
  • Any leaseholders with at least seven years' lease remaining
  • Any agricultural tenants.

You can contact your local planning authority for pre-application advice or book an appointment with our Planning Guidance Service.

Find out more about pre-application advice.

Do you need planning permission to install an outside flue?

Fitting, altering or replacing an external flue, chimney, or soil and vent pipe is normally considered to be permitted development, not requiring an application for planning permission, providing certain conditions are met.

Read about the conditions which must be met to comply with permitted development rules.

Building regulations apply to installing a flue, and installation should be carried out by a suitably qualified installer.

Read about building regulations for flue installation.

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