Jimmy, I beg to differ.
If the plans approved by the OC did not mention the roof space, but modifications to the roof space were made, I can’t see why the present owner is liable for anything. He bought in good faith.
Are purchasers required to inspect any renovation approved by the OC to assure themselves that it complies with what was specifically approved?
Surely a good OC would have hired someone to inspect the works once completed to check if they were in line with what was approved.
If the completed works were signed off, presumably the OC had no issues with what was built.
If the OC failed to verify the completed works, surely it’s for the OC to rectify (if they want to).
That’s my view and my knowledge does not even rise to the level of bush lawyer.
The only alternative scenario I see, which I think is very messy, is for the OC to demand the current owner reinstate the roof space and in turn the current owner could sue the vendor (assuming he can be located). Messy.