Emma858 Posted October 23, 2023 Share Posted October 23, 2023 We will be having decking built on top of an existing raised patio immediately adjacent to the back of our house. Planning laws state that planning permission must be sought if the decking is 30cm or more above ground level. Our decking will not exceed this height when measured from the top of the existing raised patio however if it is to be measured from true ground level then things get a little morw complecated. The true ground level surrounding where the decking varies due to a sloping plot. To one side of the decking (the front), the ground will be more than 30cm lower however the driveway to the other side of the decking is flush with the existing raised patio and so, if measured from here, the height of the decking will not exceed the 30cm rule. Help...do we need planning permission for the decking or not?!! Link to comment Share on other sites More sharing options...
Mr Punter Posted October 23, 2023 Share Posted October 23, 2023 It will probably depend on if your neighbour complains. Will it be higher than their ground level and will it increase overlooking / loss of privacy? 1 Link to comment Share on other sites More sharing options...
Marvin Posted October 23, 2023 Share Posted October 23, 2023 This may help. https://www.gov.uk/government/publications/permitted-development-rights-for-householders-technical-guidance/permitted-development-rights-for-householders-technical-guidance#class-d-porches Height: references to height (for example, the heights of the eaves on a house extension) is the height measured from ground level. (Note, ground level is the surface of the ground immediately adjacent to the building in question, and would not include any addition laid on top of the ground such as decking. Where ground level is not uniform (for example if the ground is sloping), then the ground level is the highest part of the surface of the ground next to the building.) 1 Link to comment Share on other sites More sharing options...
DevilDamo Posted October 24, 2023 Share Posted October 24, 2023 If the total height of the raised patio and decking exceed 30cm (when measured at the highest ground level next to the structure), you will require Planning. 1 Link to comment Share on other sites More sharing options...
Marvin Posted October 24, 2023 Share Posted October 24, 2023 4 hours ago, DevilDamo said: If the total height of the raised patio and decking exceed 30cm (when measured at the highest ground level next to the structure), you will require Planning. There you go! Link to comment Share on other sites More sharing options...
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