Two-family residence districts, hereinafter designated as R-2 districts, are established to provide for the protection of established neighborhoods in which duplex dwellings are located, and generally to provide a transitional area between single- and multiple-residence districts or between single-residence districts and areas of light commercial use, for additional development of this kind.

(Prior gen. code § 8-27.0)

Residential development within the R-2 districts located within the planning areas of San Lorenzo, Ashland, Cherryland, Fairview, or Castro Valley (areas within the Castro Valley Urbanized Area) shall be subject to the "Residential Design Standards and Guidelines for the Unincorporated Communities of West Alameda County," as amended. On matters not provided for in the Residential Design Standards and Guidelines for the Unincorporated Communities of West Alameda County, the respective regulations in this zoning ordinance shall apply.

(Ord. No. 2014-39, § 2, 10-7-14, eff. 1-1-15)

The following principal uses are permitted in an R-2 district:

A.

One or two one-family dwellings, or one two-family dwelling;

B.

Field crop, orchard, or garden;

C.

Medical or residential care facility for up to six persons per unit; and

D.

Licensed transitional or supportive housing for up to six persons per unit.

(Prior gen. code § 8-27.1)

(Ord. No. 2012-58, § 10, 4-10-12)

In addition to the uses listed in Sections 17.52.480 and 17.52.580, the following are conditional uses in R-2 districts, and shall be permitted only if approved by the board of zoning adjustments as provided in Section 17.54.130:

A.

Community facility;

B.

Community clubhouse;

C.

Parking lot, only when established to fulfill the residential parking requirements of this title for a use on an abutting lot or lots;

D.

Plant nursery or greenhouse used only for the cultivation and wholesale of plant materials;

E.

Medical or residential care facility for seven or more persons per unit as regulated in Section 17.54.133 (Conditional uses—Residential, medical care, transitional and supportive housing facilities);

F.

One dwelling or a dwelling group containing altogether not more than three dwelling units, where the lot has an area not less than seven thousand five hundred (7,500) square feet;

G.

Licensed transitional or supportive housing for seven or more persons per unit as regulated in Section 17.54.133 (Conditional uses—Residential, medical care, transitional and supportive housing facilities);

H.

Mobilehome parks subject to the provisions provided in Sections 17.52.1000 to 17.52.1065; and

I.

Unattended collection box(es) placed in conjunction with an approved community facility as defined in Section 17.04.010.

(Ord. 2002-60 § 1 (part); Prior gen. code § 8-27.2)

(Ord. No. 2010-71, § 13, 12-21-10; Ord. No. 2012-58, § 11, 4-10-12; Ord. No. 2013-26, § 4, 7-16-13)

Except as otherwise specified in the case of a combining district, every use in an R-2 district shall be on a building site having a median lot width not less than fifty (50) feet and an area not less than five thousand (5,000) square feet. A corner building site shall have a median lot width of not less than sixty (60) feet.

(Prior gen. code § 8-27.3)

Except as otherwise specified in the case of a combining district, the yard requirements for R-2 districts shall be the same as those set forth for R-1 districts in Section 17.08.070.

(Prior gen. code § 8-27.4)

No dwelling shall be so oriented upon a lot in a R-2 district as to have its front or living room entrance opening into a side yard less than ten feet wide, extending from said entrance to the front yard.

(Prior gen. code § 8-27.5)

No dwelling shall have a height of more than two stories, except as provided by Section 17.52.090; nor shall any building or structure have a height in excess of twenty-five (25) feet, except as provided by Section 17.52.090.

(Prior gen. code § 8-27.6)

Whenever more than one dwelling occupies the same lot in an R-2 district, all separate dwellings shall have between them an open space of at least twenty (20) feet in width, exclusive of any parking space.

(Prior gen. code § 8-27.8)