Permitted development flat/pitched roof

B

Brad Ninch

Joined
16 Nov 2015
Messages
23
Reaction score
3
Country
United Kingdom
I am planning to put a pitched roof on an existing ugly flat-roofed two-storey extension to my house. The extension is on the principal elevation and the propsed roof ridge will be lower than the original/main roof ridge. I assumed this was PD under Class B (Permitted Development) but am being told by the local planners that because the work is on an extension, I must apply for full planning consent. I cannot see anything in the GPDO Technical Guidance that states this. Has anyone experienced anything similar or has knowledge of whether the planners are right or wrong?
 
It would be classed as a front extension and as such would need permission. In my experience if you are improving the overall appearance at the front then there is a god chance of it being approved.
 
The extension is not new - it was built, with planning consent in the 1980s. The planning application was made then because it was at the front and even projected slightly in front of the original building line. What I am proposing is just to put a pitched roof on it (which I guess the 1980s owners did not wish to spend money on). Do you feel this would not qualify as Class B?
 
The original consent was for a flat roof so my assumption was that as that had been given formal planning permission, the whole building would still be subject to PD rights and changing the 'approved' flat roof to a pitched roof would be OK.
 
It would need planning permission, because the whole work (ie existing extension + new roof) woud be regarded as one extension.

But as above, it would be highly unlikely to be refused.
 
Brad Ninch said:
The original consent was for a flat roof so my assumption was that as that had been given formal planning permission, the whole building would still be subject to PD rights and changing the 'approved' flat roof to a pitched roof would be OK.
Click to expand...
I really don't understand why you think it would not need PP, extract from the tech guidance to which you yourself refer:

Class B

This provides permitted development rights for the enlargement of a house consisting of an addition or alteration to its roof.

Under Class B the following limits and conditions apply:

B.1 Development is not permitted by Class B if –

(b) any part of the dwellinghouse would, as a result of the works, extend beyond the plane of any existing roof slope which forms the principal elevation of the dwellinghouse and fronts a highway.

The effect of this is that dormer windows as part of a loft conversion, or any other enlargement of the roof space, are not permitted development on a principal elevation that fronts a highway and will therefore require an application for planning permission.
 
You must log in or register to reply here.
Back
Top