Sec. 54-500(2)

Other

• AccessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure maximum area200 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Accessory structures not to exceed 200 sq. ft.

• Flood openings for enclosed areas1 sq in per sq ftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  The total net area of all openings must be at least one square inch for each square foot of enclosed area subject to flooding.

• Bottom of flood openings above adjacent grade1 ft

  The bottom of all required openings shall be no higher than one foot above the adjacent grade.

• Enclosed area below regulatory flood protection elevation use restriction

  Not be designed or used for human habitation, but shall only be used for parking of vehicles, building access, or limited storage of maintenance equipment used in connection with the premises.

• Floodproofing certification by engineer/architect

  A registered professional engineer or architect shall certify that the standards of this subsection are satisfied.

• Lowest floor elevation above base flood level1.5 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 at least one and one-half feet above the base flood level.

• Zoning permit required

  All uses, activities, and development occurring within any floodplain district, including placement of manufactured homes, shall be undertaken only upon the issuance of a zoning permit.

• Recreational vehicle maximum consecutive days on site180 days

  Be on the site for fewer than 180 consecutive days, be fully licensed and ready for highway use

• Substantial improvement threshold50 pct

  The modification, alteration, repair, reconstruction, or improvement of any kind to a structure and/or use, regardless of its location in a floodplain area to an extent or amount of 50 percent or more of its market value shall be undertaken only in full compliance with this article

• VarianceVariancePermission to depart from a specific dimensional rule, granted on a showing of hardship. lot size limitation0.5 acresacre43,560 square feet — about the size of an American football field without the end zones.

  While the granting of variances generally is limited to a lot size less than one-half acre, deviations from that limitation may occur.