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Appeal Decision 48 - Certificate of Lawful Development.

This appeal decision summary and assessment has been produced by Planning Jungle Limited.  For more information, please go to

November 2009 - Code a00048


Summary of Case (appeal allowed): 


The property is a terraced house, and the application was for a proposed rear dormer. 


The key issue was whether the flat roof of the dormer would be contrary to Class B, part B.2(a), which requires that “the materials used in any exterior work shall be of a similar appearance to those used in the construction of the exterior of the existing dwellinghouse”. 


The Inspector stated the following: 


“The GPDO condition at the heart of this appeal does not, as the Council have stated, require matching materials. It states that materials should be of a similar appearance. I accept that the existing property does not have any flatroofed element. However, the proposal would be clad in tiles to match the existing roof. Pipework and window details would be similar to that which currently exists. In addition, there is no condition aimed at controlling the form of roofs over dormers.  


Moreover, I see no reason why the felt roofing could not be chosen to have a similar colour to the existing tiled roof. Furthermore, given its height, the roof of the dormer, near the ridge height of the existing roof, would be hidden from most vantage points. For these reasons I find that condition (a) of paragraph B.2 of the GPDO would be met.” 


Main Conclusions: 


·       The use of felt (or similar) for the flat roof of a dormer (assuming that the visibility of the roof would be limited) would not be contrary to Class B, part B.2(a). The Inspector indicates (or implies) that the felt would not need to have a similar colour to the materials on the existing house.
[Note: This would appear to contradict at least one other appeal decision – for further information see the entry in the “Reference Section” on “Materials”]
[Relevant to: “Materials”, A.3(a), B.2(a)].


Links to the “Appeal Decision Notice” and other associated documents (e.g. drawings, etc): 


·       Appeal Decision Notice: 






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