Hello. We're in process of buying a small and v expensive house in muswell hill (yes i know stupid, but we have our reasons) so need to extend into loft. Agent said vendor had planning permission for this, we checked online and surprise surprise he hasn't. He submitted plans for dormer conversion then withdrew them, because they needed 'modifying'. Mus is a conservation area we find out. We're looking into it further, as much as we can anyway, and asking the vendor for more info. But anyone any experience or uplifting/horror stories about trying to get permission in designated areas? Ta,B