Rent or sell property Information on the City's rules and permits for renting, or selling property. City building codes A summary of City building codes, and a link to the complete code. Search for property history and business license information Search for information on a property's trade licenses, violations, and permits or search for business license information. Track a permit application Track a permit application made through the Department of Licenses and Inspections (L&I). Get a Property Sales Certification How to get the Property Sales Certificate that the seller of a property must give to the buyer when the property is sold. Rent your property short-term Property owners must follow certain requirements to rent their property short-term (such as on Airbnb). Rent your property Information for renting property in Philadelphia.