In light of the Hilton judgment and the subsequent clarifying amendment to the GPDO (so ignoring the presently incorrect technical guidance), my understanding is that the attached is Permitted Development (subject to Prior Approval Notification).
Why?
Because the enlarged part of the dwellinghouse would have a single storey and would not extend beyond the original dwellinghouse by more than 8m.
It seems to me that this is the same test as applied to the Hilton case (although in that instance, the existing double-height extension was full width):
http://pa.bexley.gov.uk/online-appl...tails.do?activeTab=dates&keyVal=NN7CIPBE06400
In the Hilton case, the appellant proposed a further, full-width, single-storey extension to an existing full-width, part single- and part two-storey extension.
Agree?
Existing:
Proposed:
Why?
Because the enlarged part of the dwellinghouse would have a single storey and would not extend beyond the original dwellinghouse by more than 8m.
It seems to me that this is the same test as applied to the Hilton case (although in that instance, the existing double-height extension was full width):
http://pa.bexley.gov.uk/online-appl...tails.do?activeTab=dates&keyVal=NN7CIPBE06400
In the Hilton case, the appellant proposed a further, full-width, single-storey extension to an existing full-width, part single- and part two-storey extension.
Agree?
Existing:
Proposed:
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