§ 138-3501. Measurement of height and limitations.

(a)

Height shall be measured based on the following provisions; other exemptions of this section may be allowed:

(1)

For flat roofs, height means the vertical distance from the mean (average) elevation of the existing grade to the height of the finished roof surface.

(2)

For pitched roofs, height means the vertical distance from the mean (average) elevation of the existing grade to a point representing the midpoint of the peak and eave heights of the main roof structure.

(3)

Height may be measured from the base flood elevation including any additional required freeboard that is required by the National Flood Insurance Program or by local ordinance when a structure is located in an area of special flood hazard. In these situations, the base flood elevation may be used in lieu of the mean elevation of the existing grade.

Figure 138-3501.(a)1 — Measurement of Height

(b)

Chimneys, water, fire, radio and television towers, smokestacks, flagpoles and similar structures and their necessary mechanical appurtenances, such as elevator shafts, ventilation equipment, etc., may be erected to a maximum of 20 feet above the height limits established in this chapter;

(c)

Parapet walls constructed on buildings with flat roofs shall be permitted to extend not higher than four feet over the maximum height specified for the zoning district in which the building is located. Portions of the parapet walls, fences, or other building elements that are intended to screen mechanical equipment or similar features shall be exempt from height limits to the extent that they provide screening.

(d)

The heights of these structures or appurtenances thereto shall in no case exceed the height limitations prescribed by the Federal Aviation Administration within the flight approach zone patterns of airports. Approval by the Federal Aviation Administration of such structure heights shall be required when structures are located within the flight approach zones of airports (see airport zoning regulations).

(e)

These standards shall not apply to signs, billboards or amateur radio antennas protected under F.S. ch. 125.

(Ord. No. 18-36 , § 3(Att. B), 10-23-18)