Category Archives: permitted development

Extension Comes Under Permitted Development

Monday, August 21st, 2017

457 3D Image Screen Shot_001When the owners of a lovely barn conversion in Buckinghamshire approached us with a view to extending their home, we made an appraisal of how this could be quickly and practically achieved. A small (and rather inharmonious) conservatory had been added to the side elevation in the past, and our advice was to replace this with a more attractive – and larger – single storey kitchen extension.

An added benefit of our design is that because the extension is to the side elevation and does not exceed the dimensions allowed under Permitted Development (PD) legislation, then planning permission is not necessary. However, we advised applying to the Local Authority for a ‘Lawful Development Certificate’.

Aylesbury Vale District Council agreed that our design came under Permitted Development rights and issued the Certificate. Our client looks forward to moving ahead with the build as soon as possible.

If you would like advice on which types of domestic or commercial development come under Permitted Development rules, do get in touch with us.

Permission Granted for Extension in Green Belt

Wednesday, June 7th, 2017

SODC logo pngA family in a village to the east of Oxford was extremely pleased this week to receive planning consent from South Oxfordshire District Council for a two storey side extension to their home. Because the house is situated within the Oxford Green Belt, a convincing case had to be made that the scheme complied with current planning policy for development with the Green Belt.

SODC Green Belt planning policy states that an extension should be no greater than 40% of the volume of the original dwelling. As the premises had already been extended to the rear, our design brought the total volume added since first construction to 65%. This is outwith planning policy, and our argument centred on how much the dwelling could potentially be extended using permitted development rights alone. Our convincing explanation, along with a sympathetic design, was accepted by planners.

Once extended, the house will have a new master bedroom and en suite bathroom upstairs and the added benefit of a shower room and utility on the ground floor, creating a more spacious and attractive family home.

New Permitted Development Rights for Home Extensions

Thursday, June 6th, 2013


On 30th May 2013 the Government brought in amended planning legislation, for a temporary three year period, which relaxes the permitted development rules for certain types of extension.

A notable feature of this relaxation is that homeowners are now allowed to build larger single-storey extensions to their houses without obtaining full planning consent. In summary, if you live in a semi-detached or terraced property, you can build out by 6 metres from the original rear wall of the house, and if your house is detached you can build out by 8 metres, subject to certain constraints. Different rules apply in Conservation Areas.

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