For reference, I add construction:demolished:building= to the building= to mean it’s in progress of being “constructed” changed to be a demolished:building= . That’s similar to the logic of proposed:demolished:building= before it starts demolition.
If a more proper and single-namespace solution is sought, I might suggest directly demolishing:*= , as demolition:*= following construction:*= may be confused with demolished:*= . But this doesn’t solve the proposed:demolished:building= case.
I don’t like another building= . It’s not as “minor” construction=minor , and other building= + construction= are often misinterpreted or editing mistakes.