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Planning for Conservatories

Posted: Thursday, 10 May 2018 @ 11:19

The biggest question that you’ll be asking yourself will be do I need planning permission for my DIY conservatory?

The vast majority of the time, you will not need to obtain planning permission in order to build a DIY conservatory. This is because they are considered to be ‘permitted development’. 

However, this is only the case when the following conservatory planning permission conditions are met:

  • Conservatories do not extend beyond the side wall of the house.
  • Conservatories must not take up more than 50% of the land area around the ‘original house’.(The original house is the state of the house when it was first built, or exactly how it stood on July 1st 1948).
  • Conservatories cannot be higher than the original roof of the home.
  • No conservatory can be forward of the principal elevation or side elevation fronting a highway.
  • A single-storey rear extension cannot exceed 4 metres in height.
  • A single-storey rear extension cannot exceed 3 metres in depth, for an attached house, and 3 metres in depth for a detached house.
  • The maximum depth of a rear extension (more than one storey) is 3 metres – including the ground floor. Side extensions must be single storey – and cannot exceed 4 metres in height, or a width of more than half of the ‘original house’.
  • The eaves and ridge height of a conservatory cannot be higher than the house.
  • The eaves within 2 metres of the boundary cannot exceed 3 metres.
  • An extension cannot include balconies, raised platforms or verandas.
  • A roof pitch on conservatories higher than one storey must match exiting house.

Most of the time, meeting these requirements will be simple.

Here at Prior Consevatories, we’ll manufacture a DIY conservatory that is the perfect size for you and we will also take all building restrictions into account.


Prior Conservatories, Bird Industrial Park, Station Road, Long Marston, Warwickshire, CV37 8RP.
Telephone: 01789 720222. Fax: 01789 720220. Email:sales@priorconservatories.co.uk

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