Section 104 of the Florida Building Code states: It shall be unlawful to construct, enlarge, alter, repair, or move, remove, or demolish any building, structure, or any part thereof or any equipment, device, or facility therein or thereon, or to change Occupancy of a building from one use Group to another requiring greater strength, means of egress, fire and sanitary previsions; or to change to an unauthorized or prohibited use or to install or alter any equipment for which provisions is made or the installation of which is regulated by this code: without first having filed application and obtained a permit thereof, from the building Official, validated by payment thereof. Permits are required for any structural, window, and door replacement, electrical, plumbing, gas, and mechanical work. If you have any questions on what requires a permit, please contact the Building Department at (386) 410-2800.