Chapter 8.20 — RESIDENTIAL ZONING DISTRICTS

The purpose and intent of this Chapter is to establish regulations which achieve the following:

A. Reserve neighborhood areas for residential living with a broad range of dwelling unit densities consistent with the General Plan and applicable Specific Plans and appropriate standards of public health, safety, welfare, and aesthetics.

• B. Ensure adequate light, air, privacy, and open space for each dwelling.

• C. Minimize traffic congestion and avoid the overloading of public services and utilities.

• D. Protect residential neighborhoods from excessive noise, illumination, unsightliness, odor, smoke, and other objectionable influences.

E. Facilitate the provision of public improvements commensurate with anticipated increase in population, dwelling unit densities, and service requirements.

F. Provide lands to accommodate housing units which meets the diverse economic and social needs of the residents; locating developments to achieve the following:

1. Retain the scale and character of existing residential neighborhoods.

2. Facilitate the upgrade of declining and mixed-density residential neighborhoods.

3. Allow expansion into vacant and low-intensity use lands within infrastructure and environmental constraints.

A. R-1 (Single Family Residential Zoning District).

1. Intent. The R-1 zoning district is intended to provide for and protect neighborhoods comprised of detached, single-family homes and residential use types.

2. Use types permitted in R-1 zoning district. Animal Keeping - Residential, Community Care Facility, Garage/Yard Sale, Mobile Home, SingleFamily Residence, Small Family Day Care Home, Large Family Day Care Home, Supportive Housing, Transitional Housing; similar and related uses; temporary uses; and conditional uses.

3. General plan consistency. The R-1 zoning district is consistent with the Low-Density Single-Family Residential, Single Family-Residential, and Medium Density Residential designations of the General Plan depending on the Lot Square Footage Per Dwelling Unit selected for the development.

4. Lot square footage per dwelling unit. The designation of an area in the R-1 zoning district shall include establishing a Lot Square Footage Per Dwelling Unit expressed as a suffix to the R-1 Zoning Map symbol (e.g., R-1-5,000, R-1-10,000, etc.).

B. R-2 (Two Family Residential Zoning District).

1. Intent. The R-2 zoning district is intended to provide for and protect neighborhoods comprised of single-family dwellings and two-family dwellings that have development characteristics similar to single-family neighborhoods, duplexes, and residential use types.

2. Use types permitted in R-2 zoning district. Animal Keeping - Residential, Community Care Facility, Duplex, Garage/Yard Sale, Mobile Home, Multi-Family Residence, Single-Family Residence, Small Family Day Care Home, Large Family Day Care Home, Supportive Housing, Transitional Housing; similar and related uses; temporary uses; and conditional uses.

3. General plan consistency. The R-2 zoning district is consistent with the Medium Density Residential, and Medium-High Density Residential designations of the General Plan depending on the Lot Square Footage Per Dwelling Unit selected for the development.

4. Lot square footage per dwelling unit. The designation of an area in the R-2 zoning district shall include establishing a Lot Square Footage Per Dwelling Unit expressed as a suffix to the R-2 Zoning Map symbol.

C. R-M (Multi-Family Residential Zoning District).

1. Intent. The R-M zoning district is intended to provide for and protect neighborhoods comprised of single-family residences, two-family residences, and multi-family residences that are clustered to provide generous open space areas for common use, and that are generally close to transit, shopping, and public facilities.

2. Use types permitted in R-M zoning district. The use types intended for the R-M zoning district include Animal Keeping - Residential, Community Care Facility, Duplex, Garage/Yard Sale, Multi-Family Residence, Single-Family Residence; Small Family Day Care Home, Large Family Day Care Home, Supportive Housing, Transitional Housing; similar and related uses; temporary uses; and conditional uses.

. Use types permitted in R-M zoning district. The use types intended for the R-M zoning district include Animal Keeping - Residential, Community Care Facility, Duplex, Garage/Yard Sale, Multi-Family Residence, Single-Family Residence; Small Family Day Care Home, Large Family Day Care Home, Supportive Housing, Transitional Housing; similar and related uses; temporary uses; and conditional uses.

3. General plan consistency. The R-M zoning district is consistent with the Medium Density Residential, Medium-High Density Residential, and High-Density Residential designations of the General Plan depending on the Lot Square Footage Per Dwelling Unit selected for the development.

4. Lot square footage per dwelling unit. The designation of an area in the R-M zoning district shall include establishing a Lot Square Footage Per Dwelling Unit expressed as a suffix to the R-M Zoning Map symbol. Rev. Ord. 1-25 (February 2025); Ord. 5-20 (June 2020)

A. Permitted and Conditionally Permitted Land Uses. For permitted and conditionally permitted land uses, please see the Land Use Matrix in Section 8.12.050.

B. Accessory Structures and Uses Regulations. For accessory structures and uses regulations, please see Chapter 8.40.

C. Density Bonus Regulations. For density bonus regulations, please see Chapter 8.52.

D. Development Agreement Regulations. For development agreement regulations, please see Chapter 8.56.

• E. Development Regulations. For development regulations, please see Chapter 8.36.

F. Home Occupations Regulations. For home occupations regulations, please see Chapter 8.64.

G. Inclusionary Zoning Regulations. For inclusionary zoning regulations, please see Chapter 8.68.

• H. Landscaping and Fencing Regulations. For landscaping and fencing regulations, please see Chapter 8.72.

I. Off-Street Parking and Loading Regulations. For off-street parking and loading regulations, please see Chapter 8.76.

J. Accessory Dwelling Unit Regulations. For accessory dwelling unit and junior accessory dwelling unit regulations, please see Chapter 8.80. Rev. Ord. 17-20 (November 2020)

K. SB 9 Unit Developments. For SB 9 Unit Developments, see Chapter 8.81.

• L. Sign Regulations. For sign regulations, please see Chapter 8.84.

M. Water Efficient Landscaping Regulations. For water efficient landscape regulations, please see Chapter 8.88.

N. Wireless Communications Facilities Regulations. For wireless communications facilities regulations, please see Chapter 8.92.

O. Performance Standards. All uses in the Residential zoning districts shall conform to Section 8.28.030, Industrial Performance Standards for the M-P zoning district.

P. Transitional Housing. For Transitional Housing regulations, please see Chapter 8.50.

Q. Supportive Housing. For Supportive Housing regulations, please see Chapter 8.47. Rev. Ord. 3-22 (April 2022); Ord. 4-11 (April 2011); Ord. 25-04 (October 2004)

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The Dublin Municipal Code is current through Ordinance 2-26, passed March 3, 2026.

Disclaimer: The City Clerk’s office has the official version of the Dublin