Sec. 3-1520

Other

• Maximum accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure area600 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Accessory structures in the SFHA shall comply with the elevation requirements... or if not elevated or dryproofed shall be limited to no more than 600 square feet in total floor area.

• Flood openings requirements

  Provide a minimum of two openings on different sides of each enclosed area subject to flooding. The total net area of all openings must be at least one square inch for each square foot of enclosed area subject to flooding.

• Manufactured homeManufactured homeA dwelling built in a factory to a federal standard and transported to the site. anchoring

  All manufactured homes placed, or substantially improved, on individual lots or parcels, must meet all the requirements for new construction, including the elevation and anchoring requirements.

• Non-residential lowest floor elevation1.5 ft

  New construction or substantial improvement of any commercial, industrial, or non-residential building (or manufactured home) shall have the lowest floor, including basement, elevated to or above the base flood level plus 18 inches.

• Non-residential floodproofing alternative

  Buildings located in all A1—30, AE, and AH zones may be flood-proofed in lieu of being elevated provided that all areas of the building components below the elevation corresponding to the BFE plus two feet are water tight...

• Residential lowest floor elevation1.5 ft

  New construction or substantial improvement of any residential structure (including manufactured homes) in Zones A1—30, AE, AH and A with detailed base flood elevations shall have the lowest floor, including basement, elevated to or above the base flood level plus eighteen (18) inches.

• Space below lowest floor use restrictions

  Fully enclosed areas below the regulatory flood protection elevation shall not be designed or used for human habitation, but shall only be used for parking of vehicles, building access, or limited storage.