Definition: reference plane (Applicable to Article VI - Chapter 4)
The “reference plane” is a horizontal plane from which the height and setback regulations governing a building or other structure may be measured, in accordance with certain provisions of this Chapter. The reference plane shall not be located above the first story above flood elevation , as applicable. For zoning lots located wholly or partially within the high-risk flood zone , the reference plane may be established at any level between the flood-resistant construction elevation and a height of 10 feet above the base plane or curb level , as applicable. However, where the flood-resistant construction elevation exceeds a height of 10 feet above the base plane or curb level , as applicable, the reference plane may be established at the flood-resistant construction elevation . For zoning lots located wholly or partially within the moderate-risk flood zone , the reference plane may be established at any level between the flood-resistant construction elevation and a height of five feet above the base plane or curb level , as applicable.