We got planning permission and have partially completed the approved plans but if we don't now want to complete all the items in the approval , is it possible just to request for a completion certificate on the property for the works done - or do we have to get an amendment made to withdraw that part of the plan first? The remaining item was to cosmetically change the groundfloor frontage of the property, but all we really want to do now is replace the windows . Or is it better just to leave the unfinished planning permission on the records and just change the windows , so a future owner can complete it if they want to? Thanks for any advice hopefully....