§ 131.0444

Zones (a) Maximum structure height shall not exceed the height of the angled building envelope plane, which connects the maximum structure height adjacent to the setback and the overall maximum structure height as determined by the underlying base zone and the requirements below. Encroachments beyond the building envelope are subject to the requirements in Section 131.0461. (b) The angle of the building envelope plane is based on lot width as established in Table 131-04H. Table 131-04H Required Angle Building Envelope Plane Footnote for Table 131-04H ¹ The angled planes are measured from the vertical axis inward. (c) The maximum structure height requirements for the RS-1-1, RS-1-2, RS-1-3, RS-1-4, RS-1-5, RS-1-6, RS-1-7, and RX zones are stated in Tables 131-04D and 131-04E. The angled building envelope plane shall be required adjacent to required side yards. Angled building envelope planes are also required adjacent to front and street side yards in cases where the maximum structure height exceeds 27 feet. The angled building envelope plane shall be measured in accordance with Diagram 131-04L. Lot Width: Angle of Plane ¹ Less than 75 feet 45 degrees 75 feet to 150 feet 30 degrees Greater than 150 feet Not Applicable 62 Chapter 13: Zones (3-2026) Diagram 131-04L Angled Building Envelope Planes in RS, RX, and RT Zones Maximum structure height 24' Front, side, or street side property line Required front, side, or street side setback Outline of building envelope cross section Angle Building Envelope 27' (RS & RX zones) (RT zone) (d) The maximum structure height requirements for RT zones are stated in Table 131-04F. For buildings with a slab foundation, the maximum permitted structure height is 21 feet for one- and two-story structures or 31 feet for three- story structures. For buildings with a conventional raised floor, the maximum permitted structure height is 25 feet for one- and two-story structures or 35 feet for three-story structures. For buildings with sloped roofs with at least a 3:12 pitch (3 vertical feet to 12 horizontal feet), the maximum permitted structure height is increased by 5 feet. In all cases, unless otherwise excepted, the height of the building envelope above 27 feet adjacent to the front setback line is established by a 30-degree angled building envelope plane slanting inward to the maximum permitted structure height. The angled building envelope planes shall be measured in accordance with Diagram 131-04L. (e) The maximum structure height requirements for the RM-1-1, RM-1-2, and RM-1-3 zones are stated in Table 131-04G. The angled building envelope plane requirements apply as follows: (1) At the front setback line, the height of the building envelope above 19 feet at the minimum setback and 24 feet at the standard setback, is established by a 45-degree angled building envelope plan sloping inward to the maximum permitted 30-foot structure height limit, as shown in Diagram 131-04M. Chapter 13: Zones (3-2026) 63 Diagram 131-04M Angled Building Envelope at Front Setback 30' 24' Front property line Standard front setback Outline of building envelope cross section 19' Min front setback 45 angle 0 Building Envelope (2) At the side setback line, the height of the building envelope above 24 feet in height is established by a 45-degree building envelope plane sloping inward to the maximum permitted 30-foot structure height. (f) The maximum structure height requirements for the RM-2-4, RM-2-5, and RM-2-6 zones are stated in Table 131-04G. At the side setback lines, the maximum height of the building envelope above 30 feet in height is established by a 60-degree angled building envelope plane sloping inward from the side setback lines to the maximum permitted 40-foot structure height. 64 Chapter 13: Zones (3-2026)