The RM district classification is intended to provide, in areas of the county otherwise suitable for RS zoning, for the development of multiple-family dwelling units. RM zoning districts will be located within established urban areas that are served by an adequate public road system and are provided with publicly owned water and sewage disposal systems and normal municipal services.

(Ord. 551 § 14 (part), 1977: prior code 12320)

The following uses may be allowed in all RM districts without a use permit:

A.

One single-family dwelling unit per legal lot;

B.

Family day care homes (small);

C.

Family day care homes (large) subject to Section 18.104.070;

D.

Residential care facilities (small and medium);

E.

Minor antennas meeting the requirements of Sections 18.119.240 through 18.119.260;

F.

Telecommunication facilities, other than satellite earth stations, which consist solely of wall-mounted antenna and related interior equipment and meet the performance standards specified in Section 18.119.200, provided that prior to issuance of any building permit, or the commencement of the use if no building permit is required, the director or their designee has issued a site plan approval pursuant to Chapter 18.140;

G.

Farmworker housing providing accommodations for six or fewer employees and otherwise consistent with Health and Safety Code Section 17021.5 or successor provisions, subject to the conditions set forth in Sections 18.104.300 and 18.104.310, as applicable;

H.

Multiple-family dwelling units and single room occupancy units;

I.

Accessory dwelling units, and one junior accessory dwelling unit, providing that all of the conditions set forth in Section 18.104.180 are met;

J.

Supportive housing and transitional housing shall be considered a residential use of property and shall be subject only to those restrictions that apply to other residential dwellings of the same type in the RM zone; and

K.

Permanent supportive housing, with fifty or fewer units, shall be reviewed consistent with the provisions of Chapter 18.109 of this Code and Government Code Sections 65650 et. seq.

(Ord. No. 1323, § 16, 6-23-2009; Ord. 1097 § 40, 1996; Ord. 816 § 14, 1986: Ord. 551 § 14 (part), 1977: prior code 12321; Ord. No. 1491, § 2, 6-4-2024)

(Ord. No. 1495, § 25, 9-24-2024)

The following uses may be permitted in all RM zoning districts but only upon grant of a use permit pursuant to Section 18.124.010:

A.

(Reserved);

B.

Outdoor parks and recreation facilities compatible with agriculture and residences;

C.

(Reserved);

D.

Residential care facilities (large) subject to Section 18.104.170;

E.

Child day care centers; and

F.

Telecommunication facilities, other than those allowed under subsection (F) of Section 18.60.020, that must, for demonstrated technical reasons acceptable to the director, be located within a residential single (RS), residential multiple (RM), residential country (RC), or planned development (PD) zoning district.

(Ord. No. 1323, § 17, 6-23-2009; Ord. 1097 § 41, 1996; Ord. 816 § 15, 1986; Ord. 551 § 14 (part), 1977: prior code 12322)

(Ord. No. 1323, § 17, 6-23-2009; Ord. No. 1370, § 25, 3-20-2012; Ord. No. 1491, § 3, 6-4-2024; Ord. No. 1495, § 26, 9-24-2024)

A.

Projects proposing multiple-family dwelling units and single room occupancy units must provide twenty percent of their total dwelling units at an affordable sales price or affordable rent to lower income households. These projects shall require approval of a building permit, which shall be reviewed ministerially by the building official and director, without a discretionary permit or review that would constitute a "project" under the California Environmental Quality Act. Any subdivision of the sites shall be subject to all laws, including, but not limited to, Title 17 implementing the Subdivision Map Act. For projects that require approval of a tentative or parcel map under the provisions of Title 17, an application, including designated fees, shall be made to the department, and the project must receive approval of the map as specified in Title 17.

B.

Projects proposing multiple-family dwelling units and single room occupancy units meeting the affordability requirements of Section 18.60.040.A shall submit an affordable housing plan and enter into agreements with the county consistent with the provisions of Section 18.107.130 and Section 18.107.140. Replacement housing shall be provided as required by Government Code Sections 66300.5 et seq. or successor provisions.

C.

Within the RM district, application for a use permit under Section 18.124.030 shall be accompanied by a development plan as defined in Section 18.08.230. A use permit approved for an RM development shall comply with Section 18.104.060(A).

D.

Owners and developer shall sign the application.

(Ord. 551 § 14 (part), 1977: prior code 12323; Ord. No. 1491, § 4, 6-4-2024)

(Ord. No. 1495, § 27, 9-24-2024)

Revisions of development plans for RM developments shall comply with the provisions of Section 18.104.060(B).

(Ord. 551 § 14 (part), 1977: prior code 12324)

Development plans for RM developments, when approved, shall be filed as provided in Section 18.104.060(C).

(Ord. 551 § 14 (part), 1977: prior code 12325)

The number of dwelling units to be permitted in any residential development in the RM zone shall be a minimum of twenty dwelling units per acre and may not exceed twenty-five dwelling units per acre.

(Ord. 1246 § 11, 2004: Ord. 551 § 14 (part), 1977: prior code 12326; Ord. No. 1491, § 5, 6-4-2024)

A.

Buildings in an RM development shall be separated by not less than twelve feet, except as hereinafter indicated in this section.

B.

Where an RM development consists of two or more detached dwelling units in a single row facing a side lot line, or in a double row facing a central court, the buildings shall be separated by not less than ten feet and the rear yard shall be not less than twelve feet.

(Ord. 551 § 14 (part), 1977: prior code 12327)

A.

Where an RM development consists of two or more detached dwelling units in a single row facing a side lot line, the yard between the rear of the buildings and the other side lot line shall be not less than eight feet. The yard between the front of the building and the side lot line they face shall be not less than fourteen feet.

B.

Where an RM development consists of two or more detached dwelling units in a double row facing a central court, the yard between the rear of the buildings and the nearest side lot shall be not less than eight feet and the width of the central court shall be not less than twenty-four feet.

(Ord. 551 § 14 (part), 1977: prior code 12328)

Not less than forty percent of the land area of the site of an RM development shall be reserved for common use space. Such space shall not be covered by buildings or parking improvements, but may include required setback and yard areas. Where practical, a suitably surfaced area exclusive of walkways shall be provided adjacent to and accessible from each dwelling unit.

(Ord. 551 § 14 (part), 1977: prior code 12329)

The regulations shown for RM districts in the schedule of zoning district regulations, Section 18.104.010, shall apply to each structure and use of land within the residential multiple district.

(Ord. 551 § 14 (part), 1977: prior code 12330)

Multiple-family or single room occupancy development shall fully comply with mitigation measures AIR-1, AIR-2, AIR-3, BIO-1, BIO-2, BIO-3, CUL-1, CUL-2, CUL-3, GEO-1, GHG-1, NOI-2, TRA-1, UTL-1 and UTL-2 identified in the Final Environmental Impact Report of the Napa County 2023 Housing Element Update dated January 24, 2023 and as set forth in Resolution No. 2023-18 of the Board of Supervisors.

(Ord. No. 1491, § 6, 6-4-2024)

"Affordable rent," "affordable sales price," "low income households," and "very low income households" are as defined in Section 18.107.230.

(Ord. No. 1491, § 7, 6-4-2024)