Observatory planning permission query

Observatory planning permission query

To house my telescope, I am thinking about building a small shed in the back garden and installing an observatory dome which will replace the shed’s apex roof. The height of the shed to the eaves is 1.61 m and the dome itself is 1.3 m tall giving an overall height of 2.9 m. The diameter of the dome is 2.2m (just slightly less than the width and length of the 8 feet by 8 feet shed). The shed / dome will be 1.2m away from the boundary fence. I live in the North East Scotland countryside and the other side of the fence is a field (horses and sheep grazing). Can someone advise me if I need planning permission for this structure or would it just be considered a shed with a ‘funny’ roof. Thank you

  1. Do I Need PermissionDo I Need Permission11-19-2013

    Hi Jan.

    Having a look through the planning regulations this would appear to come under,

    Class 3A.—The provision within the curtilage of a dwellinghouse of a building for any purpose incidental to the enjoyment of that dwellinghouse or the alteration, maintenance or improvement of such a building.

    Development is NOT permitted by this class if,

    (a) it consists of a dwelling;
    (b) any part of the development would be forward of a wall forming part of the principal elevation or side elevation where that elevation fronts a road;
    (c) the height of the eaves would exceed 3 metres;
    (d) any part of the development would exceed 4 metres in height;
    (e) any part of the development within 1 metre of the boundary of the curtilage of the dwellinghouse would exceed 2.5 metres in height;
    (f) as a result of the development the area of ground covered by development within the front or rear curtilage of the dwellinghouse (excluding the original dwellinghouse and any hard surface or deck) would exceed 50% of the area of the front or rear curtilage respectively (excluding the ground area of the original dwellinghouse and any hard surface or deck); or
    (g) in the case of land in a conservation area or within the curtilage of a listed building, the resulting building would have a footprint exceeding 4 square metres.

    From the information you provided planning permission would not be required.

    Thanks for using Do I Need Permission.

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