18.35.030 Existing Enclosed Structures – Exemption.
A. The regulations of this chapter shall not be interpreted as rendering existing structures nonconforming.
B. Existing enclosed structures that do not conform to the standards of this chapter may be altered or reconstructed, provided:
1. That the alterations or reconstruction shall not increase the gross floor area of the structure to an amount greater than was contained in the original structure; and
2. Said work otherwise meets the provisions of the Larkspur Municipal Code.
C. Each of the following structures is excluded from the calculation to determine the maximum floor area, if they meet all other provisions of the Larkspur Municipal Code and no discretionary land use permits are required:
1. A one (1) time-only ground-level single-story (not extending more than fifteen (15) feet above grade) building addition of two hundred (200) square feet or less in area to an existing residence, if no other additions, which added floor area, have been approved since October 20, 1982, and if not otherwise conditioned as part of an original discretionary approval (i.e., a condition of approval specifying that this exemption is not available for future additions to the structure).
2. An accessory building of less than ninety-six (96) square feet, and with a building height of no more than nine (9) feet above grade, provided no other accessory buildings, except a garage or carport that provides required parking, exist on the site.
Any floor area added to a property under the conditions outlined in subsections (C)(1) and (C)(2) of this section shall count towards the floor area ratio for any subsequent application on the property receiving the exemption. (Ord. 1066 § 4, 2023; Ord. 1051 § 4, 2020; Ord. 1030 § 2(12), 2018; Ord. 953 § 1(44), 2007; Ord. 931 § 1, 2004)