Sonoma County |
Code of Ordinances |
Chapter 26. SONOMA COUNTY ZONING REGULATIONS |
Article 16. AR Agriculture and Residential District. |
§ 26-16-030. Permitted residential density and development criteria.
The use of land and structures within this district is subject to this article, the applicable regulations of this chapter, and the provisions of any district which is combined herewith. Policies and criteria of the General Plan and any applicable specific or area plan or local area development guidelines shall supersede the standards herein.
(a)
Residential density shall be between one (1) and twenty (20) acres per dwelling unit as shown in the General Plan land use element or as permitted by a B combining district, whichever is more restrictive.
(b)
Minimum lot size shall be 1.5 acres unless public water serves the lot, in which case the minimum shall be one (1) acre. In such cases where lots are clustered, a protective easement shall be applied to the remaining large parcels which indicates that density has been transferred to the clustered area. The minimum size for parcels subject to a Williamson Act contract shall conform to General Plan Policy AR-8c.
(c)
Maximum Building Height.
(1)
Thirty-five feet (35'); additional height may be permitted provided that site plan approval in accordance with Article 82 is first secured.
(2)
Maximum height for telecommunication facilities is subject to the provisions of this article and Section 26-88-130.
(d)
Minimum Lot Width. The minimum average lot width within each lot is eighty feet (80').
(e)
Maximum Lot Coverage.
(1)
On parcels of two acres in size or less: twenty percent (20%);
(2)
On parcels greater than two acres up to and including five acres in size: 18,000 SF or fifteen percent (15%), whichever is greater;
(3)
On parcels greater than five acres up to and including 20 acres in size: 30,000 SF or ten percent (10%), whichever is greater; and
(4)
On parcels greater than 20 acres in size: 85,000 SF or five percent (5%), whichever is greater.
Exceptions may be allowed by the planning director for commercial greenhouses, large animal operations, and buildings required for the farm operation to meet water quality or other environmental protection regulations.
(f)
Yard Requirements.
(1)
Front or Street Side Yard. Thirty feet (30') except where combined with any B district and in no case shall the setback be less than fifty-five feet (55') from the centerline of any public road, street or highway, except as may be otherwise indicated on the district maps.
(2)
Side Yard. Minimum ten feet (10'), except that in the case of a corner lot, the street side yard shall be the same as the front yard.
(3)
Rear Yard. Twenty feet (20').
(4)
Watering troughs, feed troughs, accessory buildings used for the housing or maintenance of farm animals, and accessory buildings and runs used for the housing or maintenance of kennel animals shall be located at least fifty feet (50') from the front property line, twenty feet (20') from any side or rear property line, and thirty feet (30') from any dwelling on the adjacent property.
(5)
No garage or carport opening facing the street shall be located less than twenty feet (20') from any exterior property line, except that where twenty-five percent (25%) or more of the lots on any one (1) block or portion thereof in the same zoning district have been improved with garages or carports, the required front yard may be reduced to a depth equal to the average of the front yards of the such garages or carports. However, in no case shall the front yards be reduced to less than ten feet (10'). Further, the permit and resource management department director may require a use permit if the reduction might result in a traffic hazard.
Notwithstanding the above, if a residence is elevated to meet flood requirements, the space underneath the structure may be utilized for a garage or carport if it will meet building codes, even if the ten foot (10') to twenty foot (20') setback cannot be met, subject to approval of administrative design review.
(6)
Cornices, eaves, canopies, bay windows, fireplaces and/or other cantilevered portions of structures, and similar architectural features may extend two feet (2') into any required yard. The maximum length of the projections shall not occupy more than one third ( 1/3 ) of the total length of the wall on which it is located. Uncovered porches, fire escapes or landing places may extend six feet (6') into any required front or rear yard and three feet (3') into any required side yard.
(7)
Where twenty-five percent (25%) or more of the lots on any one (1) block or portion thereof in the same zoning district have been improved with buildings, the required front yard may be reduced to a depth equal to the average of the front yards of the improved lots, subject to the limitations of Subsection (f)(5) of this section.
(8)
Accessory buildings may be constructed within the required yards on the rear half of the lot; provided, that such buildings shall not occupy more than thirty percent (30%) of the width of any rear yard. Such accessory buildings shall not be located closer than ten feet (10') to the main buildings on adjacent lots. Notwithstanding the foregoing, swimming pools may occupy more than thirty percent (30%) of the width of any rear yard. A minimum of three feet (3') shall be maintained between the wall of a pool and the rear and side property lines, and from the main building on the same lot. Conventional pool accessory equipment (pump, filters, etc.) shall be exempt from setback restrictions. Additional setbacks may be required under the California Building Code. (Ord. No. 3932.)
(g)
Parking Requirements.
(1)
No less than one (1) covered off-street occupant parking space per dwelling unit. The requirements for parking to be covered may be waived for single-family dwellings subject to the provisions of 26-86-010 (k).
(2)
Any other use shall provide parking in accordance with the standards in Article 90.
(Ord. No. 5964, § VII, 1-31-2012; Ord. No. 5711 § 7 (Exh. H), § 8 (Exh. I), 2007; Ord. No. 4973 § 5(d), 1996; Ord. No. 4927 §§ 1, 6, 11, 1996; Ord. No. 4643, 1993; Ord. No. 3932.)