When on the Building webpage, click on. "Construction Permit Inspection Request" form, complete it and email it back to the dedicated email.Required forms and documents are: A Construction Permit Application folder. Building, Electrical, Fire, and Plumbing Subcode Technical Sections. Obtain an Engineering Affidavit. Building and subtrade permits are done on the HillsGovHub online system. To facilitate the construction schedule and sequencing, some requests may need to be submitted before thirty-five (35) days after award of. Contract. State policy, standards, and specifications at the time of construction commencement. Most construction in Hillsborough County requires approval and permits from Building Services to make sure that the work meets proper safety codes. State policy, standards, and specifications at the time of construction commencement.