Before planning your conservatory build, take a moment to familiarise yourself with the following requirements. Compliance with these points will ensure that your conservatory will become a permitted development, removing the need to apply for planning permission. Remember, it is easier to make changes before the build starts rather than having to restructure after completion.
- No extension must be built forward of the principal elevation or side elevation facing a highway
- No verandas, raised platforms or balconies must be included.
- On designated land no permitted development for rear extensions of more than one storey; no cladding of the exterior; no side extensions.
- Side extensions must be a single story with the maximum height of 4 metres and width no more than half that of the original house.
- Single-storey rear conservatories must not extend beyond the rear wall of the existing house by more than 3 metres if an attached house or by 4 metres if a detached house.
- The conservatory must not be higher than the highest part of the roof of the house.
- The conservatory should cover no more than half the area of land surrounding the original house.
- The maximum eaves and ridge height of the extension must be no higher than the existing house
- The maximum eaves height of the extension must be within 2 metres of the 3 metre boundary
- The maximum height of the conservatory must be 4 metres
Please note: if the conservatory is to be built against a listed building, then listed building consent is needed before work commences. A design that is sympathetic to the original structure has a greater chance of success than one that may overwhelm the original house and its history.
When looking to extend your home, you must comply with Building Regulations. However, conservatories can be exempt from these regulations if you adhere to the stipulations below:
- The conservatory must be less that 30m square in floor area.
- It must be built at ground level.
- The conservatory must hold an independent heating system using separate controls and displaying separate temperature.
- Fixed electrical installations and glazing must comply with the applicable regulations required.
- The conservatory must be separated from the existing house by external windows, doors or quality walls.