Changes to Existing Commercial Buildings Permit Are you renovating an existing commercial building? Here's what you need to know about permits. Sign Permit Need a temporary or permanent sign? Need a sign for your private parking lot? OR a sign for your home-based business? New Commercial Buildings Permit Are you building a NEW Commercial site? Application to Occupy Just need an occupancy permit? Want Help Using the Online Permitting System? Here's the link to a series of step-by-step documents and videos to help you navigate the new Online Permit and Inspection Application process.