The chart below identifies the footnote in this section that sets forth the regulations for each type of detached accessory structure. Identify the proposed type of accessory structure in the first column and read across the chart to find the regulations for that type of accessory structure. For example, the minimum setback requirements for a detached garage are set forth in footnote 1 in this section. "N/A" means not applicable.
Type of Detached Accessory Structure | Minimum Setbacks | Maximum Lot Coverage | Max. Lot Coverage of Required Rear Yard | Minimum Distance from Main Building | Maximum Height | Driveway | Other Standards |
Garage | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Carport | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Covered patio or covered unenclosed structure | 1 | 2 | 3 | 8 | 5 | N/A | N/A |
Uncovered deck | 9 | 10 | 3 | 11 | 12 | N/A | 13 |
Covered deck | 1 | 2 | 3 | 8 | 5 | N/A | 13 |
Enclosed structure | 1 | 2 | 3 | 4 | 5 | 6 | 7, 14 |
Footnotes:
1. Minimum setbacks for detached accessory structure.
a. A detached accessory structure is not permitted in the required front or street side setback.
b. When located nearer than 60 feet to the front property line, a detached accessory structure is subject to the same minimum front-yard and side-yard setbacks required for the main building.
c. When located more than 60 feet from the front property line, the detached accessory structure may be located in the rear-yard or interior side-yard setback area, provided that the detached accessory structure shall not project into the required setback from the landside toe of a levee.
2. Maximum lot coverage. Except as provided in footnote 3 below, a detached accessory structure is subject to the maximum lot coverage standards of the zone in which the structure is located.
3. Maximum lot coverage of required rear-yard.
a. Except as provided in subparagraph b below, no more than 33% of the surface area of the required rear-yard setback may be covered by detached accessory structures.
b. In the R-1 and R-2 zones, not more than 33% or 350 square feet, whichever is greater, of the surface area of the required rear-yard setback may be covered by detached accessory structures.
c. Uncovered or unenclosed swimming pools, spas, and hot tubs, including equipment placed at ground level, or on a concrete pad at ground level; detached uncovered patios; and detached uncovered decks less than 30 inches in height, measured from ground to top of deck, are not counted in the lot coverage computation.
d. Setback from levee. Notwithstanding the provisions of subparagraphs a through c, a detached accessory structure shall not project into the required setback from the landside toe of a levee.
4. Minimum distance from main building. The minimum distance between a detached accessory structure and the main building is 4 feet.
5. Maximum height of a detached accessory structure.
a. The maximum overall height of a detached accessory structure is 18 feet to the highest point on the roof. Dormers are permitted as a decorative feature or to admit daylight to the structure, if they meet the following criteria:
i. No part of the dormer shall be located on the same plane as the wall below; and
ii. The combined width of all dormers on a single roof plane shall not exceed one-fourth of the width of the roof plane where the dormers are located.
b. The maximum wall height of a detached accessory structure is 10 feet. The wall height is the vertical dimension measured from the average elevation of the finished lot grade at the front of the building to the plate line, where the roof meets the wall.
c. Any variation or waiver of the criteria in this footnote 5 may be approved through director-level site plan and design review under chapter 17.808.
6. Driveways and maneuvering requirements for single-unit and duplex dwellings. Driveways for single-unit and duplex dwellings shall conform to the requirements of chapter 17.508. The driveway is permitted to have a landscape strip down the center. The landscape strip is not permitted in the vehicle parking pad.
7. Minimum dimensions of detached garages and carports.
a. Single-unit or duplex dwellings. Unless a parking pad that meets the requirements of section 17.624.060 is provided, the minimum interior dimensions of a detached garage or attached carport are 10 feet wide and 20 feet deep. The width may be reduced to 8 feet if the existing interior side-yard setback between the existing residence and the property line is 8 feet.
b. Multi-unit dwellings. The minimum interior dimensions of a detached garage are eight feet wide by 18 feet deep. The minimum dimensions of a detached carport are 10 feet wide and 20 feet deep. The width may be reduced to 8 feet if the existing interior side-yard setback between the existing residence and the property line is 8 feet.
8. Minimum distance from the main building for detached covered patios, covered decks, and other covered, unen-closed structures. No minimum distance is required between detached covered patios, covered decks, and other covered, unenclosed structures and the main building.
9. Minimum setbacks for detached uncovered decks.
a. No minimum setbacks are required for detached uncovered decks less than 30 inches in height, measured from the ground to the top of the deck.
b. The following minimum setbacks are required for detached uncovered decks of 30 or more inches in height, measured from the ground to the top of the deck:
i. The deck is not permitted in the required front-yard setback;
ii. When located nearer than 60 feet to the front property line, the deck is subject to the same minimum front-yard and side-yard setbacks required for the main building; and
iii. When located more than 60 feet from the front property line, the deck shall maintain a minimum five-foot interior side-yard, street side-yard, and rear-yard setback.
10. Maximum lot coverage for detached uncovered decks.
a. A detached uncovered deck less than 30 inches in height, measured from the ground to the top of the deck, is not subject to the maximum lot coverage standard.
b. A detached uncovered deck of 30 or more inches in height, measured from the ground to the top of the deck, is subject to the maximum lot coverage standard of the zone in which the deck is located.
11. Minimum distance from main building for uncovered decks.
a. No minimum distance is required between an uncovered deck under 30 inches in height, measured from the ground to the top of the deck, and the main building.
b. The distance between an uncovered deck of 30 or more inches in height, measured from the ground to the top of the deck, and the main building shall be either 6 inches or less or 4 feet or more.
12. The maximum height for an uncovered deck is five feet.
13. Other standards for detached covered and uncovered decks.
a. Railings, benches, planters, and the like, with a maximum of 3 feet in height, may be constructed and attached to the deck and are not counted as part of the deck height.
b. Trellises, walls, and similar structures attached to the deck are counted as part of the deck height.
14. Examples of detached enclosed accessory structures include: storage sheds, workshops, recreation rooms, and non-commercial greenhouses. (Ord. 2021-0024 § 35; Ord. 2019-0006 § 16; Ord. 2017-0061 § 85; Ord. 2013-0020 § 1; Ord. 2013-0007 § 1)