23 342 Chapter Measurements, Calculations, and Interpretation of Dimensional Standards DEFINITIONS AND INTERPRETATIONS Franklin Zoning Ordinance Effective January 1, 2023 23.2.5 Building Height A. Building height shall be measured in the number of complete stories above the finished grade for any building or at-grade or above-grade parking structure, but excludes: 1. Habitable attics, half-stories, and mezzanines; and 2. Spaces completely below grade, such as basements, cellars, crawl spaces, sub-basements, and below-grade parking structures. Figure 23.2.5.A Building height with uninhabitable attic B. Half-story height shall be measured for habitable attics, half-stories, and mezzanines. Figure 23.2.5.B Building height with inhabitable attic C. In the R4, R6, and OR districts and for transitional features, the building height for ‘one-half story above the average height of existing buildings on the same block face’ is calculated as follows: 1. Divide the sum of the stories on the block face by the total number of principal buildings on the block face to find the average height; 2. Add 0.5 story to the average height of the block face, then 3. Round the height to the nearest half or whole story. 4. See the example scenario below: Figure 23.2.5.C Calculating Height Principle Buildings On the Block Face Stories 102 Street A 1.5 104 Street A 1.0 106 Street A 1.0 108 Street A 1.5 110 Street A 1.5 112 Street A 1.0 114 Street A 1.0 116 Street A 1.0 118 Street A 1.5 120 Street A 1.0 Sum of Stories 12.0 Number of Principle Buildings 10 Average Height (Sum of Stories Divided by Number of Principal Buildings) 1.2 Add 0.5 to Average Height 1.7 Round to Nearest Half or Whole Story 1.5 Maximum Permitted Height 1.5
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