If there are no utilities ran to the garage/outbuilding (electric, water, gas, etc) then it can be demolished without a permit. If there are any kind of utilities ran to it, contact our office for a pre-demolition application. The application has contact information for the various utilities and a place for each of them to sign off once disconnects are completed. Once the form is complete, you or your contractor may return it to our office and obtain a demolition permit.