Possible Clues:

• Demolish utterly
• Tear down and flatten
• Fully level
• Begin urban renewal
• Tear down and make flat with the ground
• Flatten with a bulldozer, perhaps
• Synonym of 'tear down' that sounds like a synonym of 'build
• Homophone and opposite of 'raise'
• Tear down to the ground
• Bring down, as a building