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There are currently no known outstanding effects for the The Planning (General Permitted Development) Order (Northern Ireland) 2015, PART 35 .
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Class A | ||
Permitted development | A. | The extension or alteration of an office building. |
Development not permitted | A.1 | Development is not permitted by Class A if— (a)the floor space of the original building would be exceeded by more than— (i)25%; or (ii)50 square metres; whichever is the lesser; (b)the height of the building as extended or altered would exceed— (i)if within 10 metres of a boundary of the curtilage of the premises, 5 metres; (ii)in all other cases, the height of the building being extended or altered; (c)any part of the development, other than an alteration, would be within 5 metres of any boundary of the curtilage of the premises; (d)any part of the development would face onto a road; (e)the development would consist of or include the construction or provision of a veranda, balcony or raised platform; (f)the development would lead to a reduction in the space available for the parking or turning of vehicles; (g)the development would be within the curtilage of a listed building unless listed building consent has previously been granted; or (h)any extension or alteration would be in a conservation area, a World Heritage Site, an area of special scientific interest or a site of archaeological interest. |
Conditions | A.2 | Development is permitted by Class A subject to the following conditions— (a)any alteration shall be at ground floor level only; (b)any extension shall be constructed using materials which have a similar external appearance to those used for the building being extended; and (c)any office building as extended or altered shall only be used as part of, or for a purpose incidental to the use of that office building. |
Interpretation of Class A | A.3 | For the purposes of Class A— (a)where two or more original buildings are within the same curtilage and are used for the same undertaking they are to be treated as a single original building in making any measurement; (b)“office building” means a building used for any purpose within Class B1 of the Schedule to the Use Classes Order; (c)“raised platform” means a platform with a height greater than 0.3 metres above ground level. |
Class B | ||
Permitted development | B. | Development consisting of— (a)the provision of a hard surface within the curtilage of an office building to be used for the purposes of the office concerned; or (b)the replacement in whole or in part of such a surface. |
Development not permitted | B.1 | Development is not permitted by Class B if— (a)the cumulative area of ground covered by a hard surface within the curtilage of the site (other than hard surfaces already existing on 19th September 2012) would exceed 50 square metres; (b)the development would be within the curtilage of a listed building unless listed building consent has previously been granted. |
Conditions | B.2 | Development is permitted by Class B subject to the following conditions— (a)where there is a risk of groundwater contamination the hard surface shall not be made of porous materials; (b)in all other cases, either— (i)the hard surface shall be made of porous materials; or (ii)provision shall be made to direct run-off water from the hard surface to a permeable or porous area or surface within the curtilage of that office building. |
Interpretation of Class B | B.3 | For the purposes of Class B “office building” means a building used for any purpose within Class B1 of the Schedule to the Use Classes Order. |
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