18.100.080 Objective Building Design Requirements for All SB 9 Projects.
All SB 9 dwelling units shall be reviewed and approved without discretionary review or a hearing. As part of the Planning Department’s ministerial approval, the following objective design requirements shall be confirmed:
A. The design of the SB 9 dwelling unit shall be as follows:
1. For a detached unit, it shall relate to the design of any existing primary dwelling on the property through the use of similar exterior wall materials, identified color tones, window types, door and window trims, roofing materials and roof pitch.
2. For an attached unit, it shall be constructed so that the entire structure appears to be one (1) dwelling including building form, colors, window design, and door and window trims.
B. Exterior wall colors and materials shall have a light reflectivity value (LRV) of fifty (50) or less and roof materials shall have a light reflectivity value (LRV) of forty (40) or less.
C. Exterior building lighting shall be shielded and downward facing and limited to one (1) exterior light fixture per exterior doorway, or the minimum necessary to comply with the California Building Standards Code.
D. All new dwelling units are required to have fire sprinklers.
E. Structures shall not be located in the following locations:
1. In areas encumbered by a recorded easement, including, but not limited to, public utility easements, conservation easements, access easements, pedestrian pathway easements and open space easements;
2. In areas within twenty-five (25) feet of the top of a creek bank.
F. All electrical and utility services to a new dwelling unit shall be undergrounded.
G. Structures constructed per this chapter shall be accessible to Fire Department apparatus by way of an approved fire apparatus access road at least twenty (20) feet in clear width with an approved driving surface capable of supporting the imposed load of fire apparatus weighing at least seventy-five thousand (75,000) pounds.
H. Any heritage tree, as defined in Larkspur Municipal Code Chapter 12.16, proposed to be removed for construction of an SB 9 dwelling unit shall be replaced on site with a forty-eight (48) inch box tree of the same or a similar species.
I. Any parcel within a very high fire hazard severity zone, as determined by the Department of Forestry and Fire Protection pursuant to Government Code Section 51178, or within a high or very high fire hazard severity zone as indicated on maps adopted by the Department of Forestry and Fire Protection pursuant to Section 4202 of the Public Resources Code, shall include adopted fire hazard mitigation measures pursuant to existing building standards or state fire mitigation measures applicable to the development. No variance or modification to any fire code requirements or construction standards shall be permitted.
J. All detached structures shall maintain a minimum ten (10) foot separation.
K. Accessory buildings shall be permitted in compliance with Larkspur Municipal Code Section 18.20.070, and subject to all standard limitations prescribed for height, floor area, site coverage, and natural state.
L. All curb cuts and driveway access shall conform to Standard 210 of the Central Marin Fire Department.
M. Objective architectural design criteria shall be applied by the Community Development Director or designee during ministerial (administrative) review. (Ord. 1061 § 2 (Exh. A), 2022; Ord. 1057 § 3, 2022; Ord. 1055 § 2 (Exh. A), 2021)