When you move you may actually generate a lot of trash that might surprise you. You'll pick through your things and decide what to keep and what to toss, and the previous owners of your new home may also leave some things behind. When you buy a vacant lot you may also need some debris removed before building. A building site needs to be prepared before you can build that dream home or any other property. It's also good to find out how they dispose of the materials they uncover in your lot. Ask what happens to these items and where their load will go.