Alternate front setbacks
R6 R7 R8 R9 R10
In the districts indicated without a letter suffix, if an open area is provided along the entire length of the front lot line with the minimum depth set forth in the table in this Section, the provisions of this Section may apply in lieu of the provisions of Section 23-641 (Front setbacks). The building or other structure shall not penetrate the sky exposure plane set forth in the table, except as otherwise provided in Sections 23-62 (Permitted Obstructions) or 23-65 (Tower Regulations).
In R9 or R10 Districts, the provisions of this Section shall be inapplicable to any development or enlargement with more than 25 percent of the total floor area of the building in residential use.
ALTERNATE REQUIRED FRONT SETBACKS
Depth of Optional Front Open Area (in feet, measured perpendicular to street line) | Alternate Sky Exposure Plane | |||||
| Slope over Zoning Lot (expressed as a ratio of vertical distance to horizontal distance) | |||||
On Narrow Street | On Wide Street | |||||
On Narrow Street | On Wide Street | Vertical Distance | Horizontal Distance | Vertical Distance | Horizontal Distance | |
R6 or R7 Districts | ||||||
15 | 10 | 60 | 3.7 | to 1 | 7.6 | to 1 |
R8 R9 or R10 Districts | ||||||
15 | 10 | 85 | 3.7 | to 1 | 7.6 | to 1 |
ALTERNATE SKY EXPOSURE PLANE
R6 R7 R8 R9 R10 Districts
(23–642, 24–53, 33–442, 43–44)
