For information on uPVC plastic, hardwood, timber and aluminium bespoke conservatories in the UK

Book a Site Survey / In Home Quote
Home Brochure Request Conservatory Styles Roofing Systems Planning Permission Buyers Guide Quote Request


The most sensible option when planning to extend your home with a conservatory is to consult the planning department of your local authority. Many conservatory companies do this for you, or have the expertise to know if you will need planning permission.

Some conservatories do not need planing permission, as they do not exceed the amount of space allowed for extensions by local authorities. But here you need to be careful as rules differ in different areas - so again call the council’s planning experts.

Permission will also depend on other extensions added in the past, and the type of property, for example, detached and semi-detached buildings are allowed to extend more than a terraced house.

Flats and maisonettes will always require planing permission, as they have no permitted development rights.

Other factors which need to be considered are - how close is the conservatory to the boundary line, how much garden will the extension cover, does the property have planing development rights, is the building listed, is the conservatory close to a road or public footpath. All would need planning permission if they do not fall into the requirements of local and national laws or regulations.

As a guideline there are some exemptions under the Building Regulations 1991, but these are given JUST as a guideline and are not a full list:

If the conservatories walls are substantially glazed - which means at least half of the area of the wall is glass. Three-quarters of the roof must also be glass, polycarbonate sheets or a translucent material

The conservatory is at ground floor level

Any glass used fulfils the requirements of Building Regulations

The floor area does not exceed the planning authority’s rules

Nothing which includes drainage, such as sink or washing machine, is installed in the conservatory.

IMPORTANT: Erecting a conservatory is an expensive undertaking - ensuring that it meets local and national laws or rules is imperative. It isn’t something which can be skipped over or ignored. Having to dismantle your lovely new extension would be devastating, so do take all necessary steps to ensure it meets the regulations before you buy and building work starts.


Click here for a Conservatory Quote

Conservatories Online - Providing you with information, advice and window quote requests.

Quotatis Ltd
Suite 1, Joseph King House, Abbey Farm Industrial Estate, Horsham St Faith, Norwich, NR10 3JU
Tel: 08448 044 344 - International: +44 1603 899910 - Fax: 01603 899919
Registered in England 05643725