Tear down new construction?

[Eric Lunsford]

I have an opportunity to buy a property that currently has a small 2 bedroom house currently being rented for 1000/mo. There is a large 5 bed 2 bath house directly behind it that has been sitting unfinished for a year or two. Essentially, studs, roof, tyvek, and that's it. The city will not allow both houses to be on the property when sold so one of them will need to be torn down. I live in an area where folks LOVE their shops. I'm thinking of keeping the smaller home and keeping it rented and then tearing down he unfinished house while eventually putting a shop up. 

My question is this - who has experience tearing down an unfinished home? Is it something you get charged for, charge for, etc? In my head, I'd love to say whoever comes and tears it down gets to keep the lumber, windows, basically anything they can keep. Of course, I don't know if anyone would do that. If not, then I'd pay someone to tear it down while keeping things like windows for me for later use. 

Any suggestions? 

Thank you,

Eric