Extensions and conservatories

The form could not be submitted for the following reasons:

Find out whether you need permission to build an extension or conservatory at a domestic house by answering the following questions

Is the property or land listed?
Yes
No

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Is the work outside the domestic curtilage? (‘domestic curtilage’ is the area of land on which a dwelling house / flat sits and includes the residential land immediately around the building, which serves the building in some defined and meaningful way. It doesn’t include a field or other open land next to a house, even if it’s in the same ownership)
Yes
No

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Is the work in front of a principal elevation? (‘principal elevation’ means any elevation or wall of a building that faces and is within 20 metres of a public road)
Yes
No

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Is the floor area greater than 30 square metres in total? Or, if structures including outbuildings and extensions to the house have already been built as "Permitted Development" (without the need for planning permission) since 1 June 2007, the combined total area exceeds 30 square metres?
Yes
No

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Will the extension or conservatory be used for commercial purposes?
Yes
No

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Is the extension or conservatory separate to the house? (‘separate’ means not accessible from the inside of the house)
Yes
No

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If the roof is pitched, does the height of the conservatory or extension exceed 3.5 metres in total or does the bottom of the roof planes exceed 2.5 metres above ground level?
Yes
No

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If the roof is flat, does the height of the conservatory or extension exceed 3 metres?
Yes
No

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If any part of the conservatory or extension is within 1 metre of an adjoining property boundary, does the height exceed 2 metres?
Yes
No

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Does the work involve the formation or widening of a means of access onto a road? ('road' means a road, bridge, viaduct or subway which is repairable at the expense of the government or any parish, and includes the carriageway, footpath and any other part of such a road, bridge, viaduct or subway)
Yes
No

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Does the work create an obstruction to the view of a person using a road at or near a bend, corner, junction or intersection?
Yes
No

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Does the building contain one or more flats?
Yes
No

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You don't need planning permission providing that your 'permitted development' rights have not been removed by a condition on a previous planning permission.

Bye-laws note: you'll need building bye-law permission to construct an extension except where the extension is a conservatory or covered area that has an internal floor area less than 20 square metres.

You'll need building bye-law permission to construct a conservatory which is not thermally separated from the dwelling by external quality doors or windows achieving a thermal performance not worse than 2.0W/m2k.

For the purposes of the building bye-laws, a conservatory is an enclosure that has not less than 75% of its roof and 50% of its external wall area, made from translucent material.

You'll need planning permission before you build an extension and or conservatory. Click on the button below to start your application.

For the purposes of the building bye-laws, a conservatory is an enclosure that has not less than 75% of its roof and 50% of its external wall area, made from translucent material.

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