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A Guide to Permitted Development

Updated: Nov 25, 2018

What can you do to your home without the need to apply for planning permission? Sarson Building Services - High Quality Builders in Chichester, Selsey and Arundel.



Quick Guide This a quick guide to home improvements that you can do under Permitted Development. However, the rules and permissions do change and can depend on other circumstances. So it's a good idea to contact your local planning department for advice. This can be leave some feeling out of depth but at Sarson Building Services we can assist and even do this for you and then advise on how to proceed with your building project.


What Property Improvements Can You Make?

  • Build a porch.

  • Carry out internal alterations.

  • Convert and occupy the loft space.

  • Install microgeneration equipment such as solar panels (apart from wind turbines).

  • Install satellite dishes.

  • Erect antenna.

  • Put in rooflights or dormer windows.

  • Put in new doors or windows.

  • Extend the back of your home.

All subject to design constraints; e.g. porch has to be less than 3m³, rooflights and dormers must not face the highway, etc.


What Extensions Can You Make?

  • You can extend a detached dwelling by 8m to the rear if it’s single storey or 3m if it’s double.

  • Semi-detached and terraced homes can be extended up to 6m to the rear of the property if single storey.

  • There are height restrictions but they boil down to a single storey extension not being higher than 4m in height to the ridge and the eaves, and ridge heights of any extension not being higher than the existing property.

  • Two storey extensions must not be closer than 7m to the rear boundary.

  • It must be built in the same or similar material to the existing dwelling.

  • Extensions must not go forward of the building line of the original dwelling.

  • Side extensions must be single storey, maximum height of 4m and a width no more than half of the original building.

  • In Designated Areas side extensions require planning permission and all rear extensions must be single storey.

  • An extension must not result in more than half the garden being covered.

  • You can only do it once and the original building is either as it was on 1st July 1948 or when it was built. In Northern Ireland it is as it was built or as it was on 1st October 1973.


What Outbuildings Can You Build?

  • You can construct all sorts of outbuildings for the use and enjoyment of the home so long as they do not cover more than 50% of the garden space. In Scotland this is reduced to 30%.

  • In Wales and Northern Ireland any outbuildings closer to the house than 5m count as extensions. In Scotland any outbuildings larger than 4m² and closer to the dwelling than 5m count as extensions.

  • Outbuildings must be single storey with a maximum ridge height of 4m for a pitched roof or 3m for any other kind of roof. The eaves height must be no more than 2.5 metres.

  • If the outbuilding is closer to the boundary than 2m it shall be no higher than 2.5m.

  • No outbuilding can be forward of the original dwelling. In Wales and Northern Ireland the same applies unless the resulting building would be more than 20m from the road.


For full details of the permitted developments visit the Planning Portal by clicking here.


 

Sarson Building Services are general builders based near Chichester, Selsey and Arundel.

We offer a complete building service to our customers who benefit from a wealth of knowledge, experience and quality craftsmanship. Contact us on 07802 430 360.

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