Planning & Building Regulations for Conservatories

Adding a conservatory to your house is considered to be permitted development, not needing an application for planning permission, subject to the limits and conditions listed below.

• No more than half the area of land around the "original house" would be covered by additions or other buildings.
• No extension forward of the principal elevation or side elevation fronting a highway.
• No extension to be higher than the highest part of the roof.
• Single-storey rear conservatory must not extend beyond the rear wall of the original house by more than three metres if an attached house or by four metres if a detached house.
• Maximum height of a single-storey rear extension of four metres.
• Extensions of more than one storey must not extend beyond the rear wall of the original house by more than three metres or be within seven metres of any boundary opposite the rear wall of the house.
• Maximum eaves height of an extension within two metres of the boundary of three metres.
• Maximum eaves and ridge height of extension no higher than existing house.
• Side extensions to be single storey with maximum height of four metres and width no more than half that of the original house.
• Roof pitch of extensions higher than one storey to match existing house.
• No verandas, balconies or raised platforms.
• On designated land no permitted development for rear extensions of more than one storey; no cladding of the exterior; no side extensions.

Building regulations will generally apply if you want to build an extension to your home.

However, conservatories are normally exempt from building regulations when:

• They are built at ground level and are less than 30 square metres in floor area.
• The conservatory is separated from the house by external quality walls, doors or windows.
• There should be an independent heating system with separate temperature and on/off controls.
• Glazing and any fixed electrical installations comply with the applicable building regulations requirements (see below).

If you do need planning permission, our experts at Glazedale are more than happy to sort it out with the local authority in Nottingham, Derby or Leicester.

For a free no obligation quotation in the Nottinghamshire, Derbyshire & Leicestershire area call us on

01773712001 or use our contact form.

You can also visit our Langley Mill showroom at        

     St Andrews Court, 96 Station Road, Langley Mill, Nottingham, NG16 4BP

We are open Mon - Fri 9.00 - 17.00, Sat 9.00 - 16.00.

Closed on Sundays.