Prior to the beginning of demolition, you should check with your county, city, and state to see if you need to obtain one of these, which would legally allow you to begin demolition.
Answer Permit
You may be required by your county, city, or state to obtain a permit before beginning demolition. The average national cost for a permit is around $200 and is usually included in the price of a demolition service if you choose to use one. However, the cost will be dependent upon your location and may vary greatly from this amount.
Asked by Jason Forbes · Last updated 5 years ago · 8.9K views · SOURCE