(This is from a nearby residents perspective, not the owner of the building)
Someone locally builds some bedsits without permission, then, five years latter applies for a retrospective "certificate of lawfullness" which is granted. The COL is granted and never consulted with local residents.
The property then becomes a source of crime, antisocial behaviour etc.
1) Is there any way the certificate of lawfullness can be voided or otherwise 'un-done'
2) How can it be that a COL can be granted with zero consultation ?!