The OS district is intended to apply to all lands designated in the General Plan as "open space." This land use classification is designed to preserve and enhance the use of open-space lands as a limited and valuable resource. It is further intended to permit limited but reasonable use of open-space land while protecting the public health, safety and welfare; to insure the continued availability of land in agricultural production; to preserve the topography of the city that shapes it and gives it identity; and to implement the city's open space element of the General Plan.

(Ord. 16.76 § 1 (part), 1989)

Permitted uses are as follows:

A.

Fish and wildlife management activities or facilities;

B.

Flood-control channels and drainage facilities;

C.

Public and private recreation areas, parks, playgrounds, wildlife preserves and timber preserves;

D.

Watershed management activities or facilities, including but not limited to aquifer recharge areas, stream restoration projects and related activities

E.

Accessory uses located on the same site with a permitted use which are customarily incidental to the permitted use, including but not limited to incidental storage facilities and signs which pertain only to a permitted use on the premises and which are in accordance with the provisions of Chapter 17.56 of this title.

F.

Accessory dwelling units pursuant to Chapter 17.57 of this title.

(Ord. 16.76 § 1 (part), 1989; Ord. 1687 § 3 (part), 1993; Ord. No. 16.142, § 47, 12-4-2024)

The following conditional uses may be permitted upon the granting of a use permit in accordance with the provisions of Section 17.50.020 of this title:

A.

Commercial and private stables and riding academies;

B.

Crop and tree farming and grazing of horses, cattle, sheep and goats;

C.

Golf courses, driving ranges and other similar commercial recreational facilities, but not including drive-in movie theaters or any facility where the primary use is enclosed in a building;

D.

General outdoor recreational uses, including but not limited to tennis and basketball courts; soccer, softball and baseball fields; campgrounds; picnicking grounds; and recreational trails;

E.

Kennels, aviaries and other wholesale animal-raising facilities

F.

One or more single-family dwellings at a density not to exceed one dwelling unit per ten acres; if more than two dwellings are involved, the development proposal must be clustered and in conformance with an approved planned unit development;

G.

The growing and harvesting of Christmas trees;

H.

The growing and harvesting of timber and other forest products (not including Christmas trees), in conformance with the development standards of this section and Chapter 17.34 of this title;

I.

Other uses which the planning commission determines to be of a similar nature to those listed above, subject to the requirements of Section 17.50.020 of this title.

(Ord. 16.76 § 1 (part), 1989; Ord. No. 16.142, § 48, 12-4-2024)

A.

Architectural and site plan review and approval of the design review board shall be required for all structures, alterations to structures and signage in the OS zoning district.

B.

Any proposed timber harvesting shall require a timber management plan prepared or approved as to content by a registered professional forester. Such plan shall provide for the eventual harvest of timber within a reasonable period of time. The timber management plan shall be subject to approval as submitted or as amended by the city. Prior to commencement of the use, the parcel owner and his successors in interest shall be bound to carry out the approved timber management plan. Said management plan shall be approved by the city council, after report and recommendation of the planning commission, pursuant to Section 51110.2 of the Public Resources Code of California.

C.

Any parcel proposed for timber harvesting shall currently meet the timber stocking standards as set forth in Section 4561 of the Public Resources Code and the Forest Practice Rules adopted by the State Board of Forestry for the district in which the parcel is located, or the owner must sign an agreement with the city council to meet such stocking standards and forest practice rules by the fifth year following the signing of such agreement. If the parcel is subsequently allowed to have a timber harvesting use, failure to meet such stocking standards and Forest Practice Rules within this time period provides the city council with grounds for revoking any use permit issued.

D.

The land area proposed for timber harvesting shall be in the ownership of one person, as defined in Section 38106 of the Revenue and Taxation Code and shall be comprised of a single parcel or contiguous parcels consisting of at least five acres in area.

E.

Parcels with use permits for timber harvesting may not be divided into parcels containing less than one hundred sixty acres unless the owners of resulting parcels submit a joint timber management plan prepared or approved as to content by a registered professional forester and such owners enter into a binding contract with the city, approved by the city council, to manage and harvest timber on the timberland jointly. Such owners shall be bound by the provisions of such management plan for a minimum period of twenty years. Any such divisions shall require approval by a four-fifths vote of the city council.

F.

Any land division pursuant to Subsection E of this section shall not create parcels smaller than forty acres, except pursuant to an approved planned unit development.

G.

No building shall be located closer than twenty-five feet from the top of the bank of a perennial or intermittent stream, as shown in Section 17.04.230 of this title. All proposed structures shall be constructed above the one-hundred-year floodplain.

H.

All uses shall be subject to the performance standards specified in applicable provisions of Section 17.44.020 of this title.

I.

Accessory Structures. See Section 17.46.130 (Accessory Structures).

(Ord. 16.76 § 1 (part), 1989; Ord. No. 16.142, § 49, 12-4-2024)