This old building has seen better days.
The building is out of use now because of its decrepitude.
These old structures are still used as school buildings.
The old building seemed about to tumble down.
The old building was broken down.
That is one of the oldest buildings in this town.
It was decided that the old building be pulled down.
The new building is enormous.
This neighborhood has lots of buildings and is disorderly.
This building used to be a cathouse.
This building is off limits now.