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Title XXIII — ZONING

Chapter 23.04 — RESIDENTIAL ZONING DISTRICTS

Alhambra Municipal Code · 2026-09 edition · updated 2026-10-01 · Alhambra

§ 23.04.010 PURPOSE AND APPLICABILITY.

(A) The purposes of residential zoning districts are to:

(1) Provide for a full range of housing types to meet the diverse economic and social needs of residents;

(2) Preserve, protect, and enhance the character of the city's neighborhoods;

(3) Enhance the quality of life of residents;

(4) Ensure that the scale and design of new development and alterations to existing development are compatible with surrounding uses and appropriate to the physical and aesthetic

characteristics of the proposed location; and

(5) Provide sites for public and semi-public uses such as parks, schools, day care, and other community uses that serve residents and complement surrounding residential development.

(B) Additional purposes of each residential zoning district:

(1) Residential Low Density (RL). The RL Zone is intended to provide for residential development and other compatible uses in a low

density residential neighborhood setting at densities up to five dwelling units per acre. The RL Zone implements the Low Density Residential General Plan land use designation.

(2) Residential Medium Density (RM). The RM Zone is intended to provide for a variety of housing types at densities up to 18 dwelling units per acre. Housing types in this Zone include detached

single-unit dwellings, duplexes, triplexes, and other medium density housing types. Other compatible uses appropriate in a medium density residential environment are allowed. The RM Zone

implements the Medium Residential Density General Plan land use designation.

(3) Residential High Density (RH). The RH Zone is intended to provide for a variety of housing types at densities up to 24, 43, or 64 dwelling units per acre depending on location and lot size. A

variety of housing types are allowed, including attached and detached single-unit dwellings, townhomes, condominiums, garden-style units, multi-unit developments, and apartments. This Zone also provides for public uses, quasi-public uses, and similar and compatible uses that may be appropriate in a high density residential environment. The RH Zone implements the High Density Residential General Plan land use designation.

(Ord. 4823, passed 1-22-24)

Exceptions & meaning →

§ 23.04.020 LAND USE REGULATIONS.

Table 23.04.020: Land Use Regulations - Residential Zoning Districts, sets the land use regulations for the Residential Zoning Districts. Land uses are defined inChapter 23.43. In cases where a specific land use or activity is not defined, the Community Development Director shall assign the land use or activity to a classification that is substantially similar in character. Land uses not listed in the table and not substantially similar to the uses listed are prohibited. Section numbers in the right-hand column refer to other sections of this title.

TABLE 23.04.020: LAND USE REGULATIONS - RESIDENTIAL ZONING DISTRICTS "P" = Permitted Use; "M" = Minor Use Permit required; "C" = Conditional Use Permit required; "-" = use not allowed Land Use Classification RL RM RH Additional Regulations Residential Uses Residential housing types See subclassifications below Single-unit dwelling, detached P P P Single-unit dwelling, attached - P P Condominium projects require a minimum of six units, except if Multi-unit dwelling P(1) P P developed consistent with Cal. Gov’t Code § 65852.28 Accessory dwelling units See § 23.22.040 Family day care See § 23.22.140 Group residential C C C Low barrier navigation centers C P P Must be consistent with Cal. Gov’t Code §§ 65660 et seq. Residential care facility See subclassification below Small residential care facilities constitute a residential use and are subject only to those restrictions that apply to other residential Small uses of the same type in the same zoning district. Large - - M Residential facility, assisted living - - M Single room occupancy (SRO) - C C See § 23.22.260 Supportive housing Transitional and supportive housing constitute a residential use and are subject only to those restrictions that apply to other Transitional housing residential uses of the same type in the same zoning district. Small housing developments of no more than 10 residential units which meet the requirements of Cal. Gov’t Code § 65852.28 (SB Small housing development 684) shall be a permitted use at any site zoned for multifamily residential development. Affordable housing developments of 2 or more residential units which meet the requirements of Cal. Gov’t Code § 65913.4 (SB 35) Affordable housing developments of 2 or more units shall be a permitted use at any site zoned for residential use or residential mixed-use development. Public/Semi-Public Uses Community assembly C C C See § 23.22.060 Community garden C C C See § 23.22.100 Cultural institutions C C C Day care centers C C C Park and recreation facilities C C C Public safety facilities C C C Schools C C C Transportation, Communication, and Utility Uses Communication facilities See subclassification below Telecommunication See § 23.22.270 Other Uses Accessory uses, activities, and structures See §§ 23.22.030 and 23.12.020 Cannabis cultivation See § 23.22.080 Home occupations See § 23.22.170 Neighborhood commercial uses may be allowed on residentially zoned properties with existing commercial uses operating within Neighborhood commercial the confines of a permitted commercial building or structure pursuant to § 23.22.200 Nonconforming uses See Chapter 23.19 Temporary uses See § 23.22.280 Notes:

  1. Multi-unit dwelling residential development not exceeding 2-units and which meets the requirements of Cal. Gov’t Code § 65852.21 (SB 9) shall be a permitted use.

(Ord. 4823, passed 1-22-24; Ord. 4831, passed 8-26-24; Am. Ord. 4844, passed 4-28-25; Am. Ord. 4848, passed 9-8-25)

Exceptions & meaning →

§ 23.04.030 DEVELOPMENT STANDARDS.

(A) Table 23.04.030: Development Standards - Residential Zoning Districts, prescribes the development standards for Residential Zoning Districts. Letters in parentheses refer to additional development standards that directly follow the table. Section numbers in the Additional Regulations column refer to other sections of this title. Housing developments in the RH Zoning District are eligible for flexible development standards pursuant to § 23.12.060.

TABLE 23.04.030: DEVELOPMENT STANDARDS - RESIDENTIAL ZONING DISTRICTS

Land Use Classification RL RM RH Additional Regulations TABLE 23.04.030: DEVELOPMENT STANDARDS - RESIDENTIAL ZONING DISTRICTS

Land Use Classification RL RM RH Additional Regulations Density and Floor Area Standards Area bounded by Atlantic Blvd. on the west, Woodward Ave. on the north, Commonwealth Ave. on the south, and Chapel Ave. on the east: 64 Maximum density (units per acre) 5 18 Other areas: Lots less than 10,000 square feet: 24 Lots 10,000 square feet or more: 43 Maximum floor area ratio (FAR) 0.40 N/A N/A Height Standards Area bounded by Atlantic Blvd on the west, Woodward Ave on the north, Commonwealth Ave on the south, and Chapel Ave on the east, and Maximum height (feet) 25 35 parcels on major arterial streets within 1,300 feet of a freeway interchange: 75 Other areas: 45

Area bounded by Atlantic Blvd on the west, Woodward Ave on the north, Commonwealth Ave on the south, and Chapel Ave on the east, and Maximum number of stories 2 3 parcels on major arterial streets within 1,300 feet of a freeway interchange: 6 Other areas: 5 Setback Standards (measured from property line unless otherwise indicated) Properties on Curtis or Electric Lanes: 15

Whichever is greater: Other areas: Whichever is greater: Average of front setbacks of

Minimum front setback (feet) 25(A) (B) two adjacent properties, or Average of front setbacks of two adjacent properties, or 20 ft

15 ft

Minimum street side setback (feet) 10 10 10 The required front setback of The required front setback of The required front setback of the first lot to the Reversed corner lot the first lot to the rear the first lot to the rear rear First story: 5 First story: 5 First story: 5 Minimum interior setback (feet) Second story: 6 Upper stories: 6 Upper stories: 6 20% of lot depth, up to 15 Properties which have rear yards on Curtis or Minimum rear setback 10 feet Electric Lanes: 15, otherwise 10 Minimum distance between buildings (feet 5 5 5 measured from eave to eave) Lot Coverage Standards Maximum lot coverage (% of lot) N/A 45 55

(B) Additional development standards.

(1) Sloping lot adjustment. Where a lot has a slope greater than 25 percent, measured from the curb line to a point midway between the side lot lines at a distance of 50 feet from the front lot line,

the minimum required front setback is that of the zone. An attached or detached garage with a maximum capacity of two cars and no more than 10 feet in height measured from the front property line, may be set back a minimum of five feet from the front and side property lines.

FIGURE 23.04.030: SLOPING LOT ADJUSTMENT

(2) Through lots. In the case of through lots, both street frontages shall be designated as front yards and shall comply with all regulations pertaining thereto, including setbacks, projections,

location of parking spaces and open space.

(Ord. 4823, passed 1-22-24; Ord. 4831, passed 8-26-24)

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