6.12.5 Flag Lots
A. Dimensions
1. Standard Flag Lot
The extension, or “pole,” for flag lots shall be a minimum of 20 feet in width.
2. Reduced Pole Width Option
In the Urban Tier and lots with RU zoning or RS‐M zoning in the Suburban Tier, the extension, or “pole,” for flag lots can be a minimum of 12 feet in width. The following shall also apply:
a. Structure Size and Height Limit
The primary structure on a flag lot with a pole less than 20 feet shall have a maximum height of the lesser of two stories or 32 feet and maximum size of 1,200 square feet.
(1) A plat shall be recorded to specify the house size limitations.
(2) Primary structures existing prior to February 25, 2019, shall not be limited to these standards and may be improved in accordance to the applicable single-family detached housing type standards and other applicable standards.
(3) A vacant flag lot with a pole of less than 20 feet recorded prior to the effective date of these standards may be developed as a standard flag lot.
b. Remaining Standard Lot
The minimum lot width of the remaining standard lot created from the parent parcel shall be 35 feet.
c. Sustainable Requirement
Small lots and reduced pole flag lots must include one approved sustainable feature including ribbon driveway, grid‐connected solar photovoltaic array1, solar hot water heating for domestic hot water2, spray foam insulation, green building certification, use of WaterSense products3, no on‐site parking, downspouts not piped to the right‐of‐way, or projects utilizing any part of the affordable housing bonus as outlined in Sec. 6.6.
1An on‐site system that is estimated by the installer to produce at least 25% of the home’s energy needs.
2Energy Star certified water heating system designated as solar with electric backup or solar with gas backup.
3To satisfy this requirement all toilets, bathroom faucets, and showerheads must meet the EPA criteria for WaterSense.
B. Setbacks
All perimeter lot lines shall be side yards for setback purposes.
C. Access
Where a flag lot abuts an improved and maintained alley, motor vehicle access shall only be taken from the alley.
D. Driveways
Driveways may be shared for multiple flag lots, and for the new flag lot and remaining standard lot if the driveway for the standard lot is new or to be relocated. Recorded shared access agreements are required for shared driveways.