Title D — ZONINGDivision D2 — Allowable Land Uses and Zoning Standards

Chapter I — Development and Land Use Approval Requirements

San Ramon Zoning Code · 2026-06 edition · ingested 2026-07-06 · San Ramon

Contents:

D2-1 - Purpose

D2-2 - General Requirements for Development and New Land Uses

D2-3 - Allowable Land Uses and Permit Requirements

D2-4 - Exemptions from Land Use Permit Requirements

D2-5 - Temporary Uses

D2-1 - Purpose

This Chapter describes the City’s general requirements for the approval of proposed development and new land uses. The permit requirements established by this Zoning Ordinance for specific land uses are in Chapters D2-III through D2-V.

D2-2 - General Requirements for Development and New Land Uses

Each land use and/or structure shall be established, constructed, reconstructed, altered, moved or replaced in compliance with the following requirements.

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  • A. Allowable use. The land use shall be allowed by this Zoning Ordinance in the zone applied to the site. The basis for determining whether a use is allowable is described in Section D2-3 (Allowable Land Uses and Permit Requirements).

  • B. Permit and approval requirements. Any land use permit or other approval required by Section D2-3 (Allowable Land Uses and Permit Requirements) shall be obtained before the issuance of any required grading, building, or other construction permit, and before the proposed use is constructed, otherwise established or put into operation, unless the proposed use is listed in Section D2-4 (Exemptions from Land Use Permit Requirements).

  • C. Development standards, conditions of approval. Each land use and structure shall comply with the development standards of this Chapter, the provisions of Division D3 (Site Planning and Project Design Standards), and any applicable conditions imposed by a previously granted land use permit.

  • D. Legal parcel. The site of a proposed development or new land use shall be a parcel that was legally created in compliance with the Subdivision Map Act and the City’s Subdivision Ordinance.

D2-3 - Allowable Land Uses and Permit Requirements

  • A. Allowable land uses. The uses of land allowed by this Zoning Ordinance in each zone are listed in Chapters D2-II, D2-III, D2-IV, and D2-V (Tables 2-1, 2-6, 2-8, 2-11, 2-12, 2-14, and 2-15, respectively), together with the type of land use permit required for each use. Each land use listed in Tables 2-1, 2- 6, 2-8, 2-11, 2-12, 2-14, and 2-15 is defined in Division D8 (Glossary).

1. Establishment of an allowable use.

Any one or more land uses identified by Tables 2-1, 2-6, 2-8, 2-11, 2-12, 2-14, and 2-15 as being allowable within a specific zone may be established on any parcel within that zone, subject to the land use permit requirements of Subsection B, and compliance with all applicable requirements of this Zoning Ordinance.

Where a single parcel is proposed for development with two or more of the land uses listed in the tables, the overall project shall be subject to the highest permit level required by Subsection B. for any individual use. For example, a new building proposed in the OA zone with a bank on the ground floor and professional offices on the second floor would require Minor Use Permit (MUP) approval because Table 2-8 requires Minor Use Permit approval for "banks and financial services," even though an "Office - Professional" is listed in the OA zone as a permitted use, requiring only a Zoning Clearance.

  1. Use not listed. A land use that is not listed in Tables 2-1, 2-6, 2-8, 2-11, 2-12, 2-14, and 2-15, and is determined by the Zoning Administrator to not be included in Division D8 (Glossary) under the definition of a listed land use, is not allowed within the City, except as otherwise provided in Subsection A.3, or Section D2-4 (Exemptions from Land Use Permit Requirements).

  2. Similar and compatible use may be allowed. The Zoning Administrator may determine that a proposed use not listed in this Division is allowable as follows:

    • a. Required findings. The Zoning Administrator may determine that a proposed use is similar to and compatible with a listed use and may be allowed, only after first making all of the following findings:

      1. The characteristics of, and activities associated with the use are similar to one or more of the listed uses, and will not involve a greater intensity than the uses listed in the zone;

      2. The use will be consistent with the purposes of the applicable zone;

      3. The use will be consistent with the General Plan and any applicable Specific Plan;

      4. The use will be compatible with the other uses allowed in the zone; and

      5. The use is not listed as allowable in another zone.

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A determination that a use qualifies as a “similar use” and the findings supporting the determination shall be in writing.

  • b. Applicable standards and permit requirements. When the Zoning Administrator determines that a proposed, but unlisted, use is similar to a listed use, the proposed use will be treated in the same manner as the listed use in determining where it is allowed, what permits are required, and what other standards and requirements of this Zoning Ordinance apply.

  • c. Referral for determination. The Zoning Administrator may refer the question of whether a proposed use qualifies as a similar and compatible use directly to the Commission for a determination at a public meeting.

  • d. Appeal. A determination of similar and compatible use may be appealed in compliance with Chapter D7-II (Appeals and Calls for Review).

  • B. By-right approval. Owner occupied and rental multi-family residential developments that have 20 percent of the units reserved for lower-income households shall be allowed by-right pursuant to California Government Code Section 65583.2. The phrase “by-right” shall mean that the City's review of owner-occupied or multifamily residential use may not require a conditional use permit, planned unit development permit, or other discretionary review or approval that would constitute a “project” for purposes of Division 13 (commencing with Section 21000) of the California Public Resources Code.

Any subdivision of the sites shall be subject to all laws, including, but not limited to, implementing the Subdivision Map Act.

  • C. Permit requirements. Tables 2-1, 2-6, 2-8, 2-11, 2-12, 2-14, and 2-15 within Chapters D2-III, D2-IV, and D2-V provide for land uses that are:

    1. Permitted subject to compliance with all applicable provisions of this Zoning Ordinance. As determined by the Zoning Administrator, a Zoning Clearance may be required prior to operation, (Section D6-30). These are shown as "P" uses in the tables;

    2. Allowed subject to the approval of a Minor Use Permit (Section D6-28), and shown as "MUP" uses in the tables;

    3. Allowed subject to the approval of a Use Permit (Section D6-28), and shown as "UP" uses in the tables;

    4. Allowed subject to the type of City approval required by a specific provision of Chapter D4-III (Standards for Specific Land Uses), and shown as "S" uses in the tables; and

    5. Allowed subject to compliance with all applicable provisions of this Zoning Ordinance, subject first obtaining a Zoning Clearance (Section D6-30). These are shown as “ZC” uses in the tables;

    6. Not allowed in particular zones, and shown as "—" in the tables.

Note: A land use authorized through the approval of a Zoning Clearance, Minor Use Permit, or Use Permit may also require Architectural Review (Section D6-22), Preliminary Plan Review (Section D626), a Building Permit, or other permit required by the Municipal Code. A By-right land use may also require Architectural Review (Section D6-22) in accordance with subdivision (f) of California Government Code Section 65589.5.

(Ord. No. 522, § 6, 12/12/2023)

Effective on: 1/11/2024

D2-4 - Exemptions from Land Use Permit Requirements

The planning permit requirements of this Zoning Ordinance do not apply to the land uses, structures, and activities identified by this Section. These are allowed in all zones subject to compliance with this Section.

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  • A. General requirements for exemption. The land uses, structures, and activities identified by Subsection B below are exempt from the land use permit requirements of this Zoning Ordinance only when:
  1. The use, activity or structure is established and operated in compliance with the setback requirements, height limits, parking requirements, and all other applicable standards of this Division (Allowable Land Uses and Zone Standards), Division D3 (Site Planning and Project Design Standards), and, where applicable, Chapter D7-I (Nonconforming Uses, Structures, and Parcels); and

    1. Any permit or approval required by regulations other than this Zoning Ordinance is obtained (for example, a Building Permit).
  • B. Exempt activities and land uses. The following are exempt from the land use permit requirements of this Zoning Ordinance when in compliance with Subsection A above.

    1. Decks, paths and driveways. Decks, platforms, on-site paths, and driveways that are not required to have a Building Permit, Grading Permit, or Encroachment Permit.

    2. Fences and walls. See Section D3-4 (Fences, Walls, and Screening).

    3. Interior remodeling. Interior alterations that do not: (a) increase the gross floor area of the structure; (b) increase the number of dwelling units; (c) increase the number of bedrooms to the extent that additional parking would be required; or (d) change the permitted use of the structure.

    4. Repairs and maintenance.

      • a. Single-family dwellings. Ordinary repairs to, and maintenance of, single-family dwellings, that are also exempt from Architectural Review (Section D6-22).

      • b. Multi-family, and non-residential structures. Ordinary repairs to, and maintenance of, multi-family residential and non residential structures, if:

        1. The work does not change the approved land use of the site or structure, or add to, enlarge or expand the land use and/or structure;

        2. Any exterior repairs employ the same materials and design as the original construction; and

        3. The work is exempt from Architectural Review (Section D6-22).

    5. Small, portable residential accessory structures. A single portable structure per lot or unit, limited to pre-manufactured storage sheds and similar small structures in residential zones that are exempt from Building Permit requirements in compliance with the Municipal Code and the Uniform Building Code. Additional structures may be approved in compliance with Section D4-26 (Accessory Structures), where allowed by the applicable zone.

    6. Solar Energy System. The installation of a solar energy system to the roof or side of a building, provided that the system complies with applicable height limit requirements; and ground-mounted systems comply with the setback requirements and height limitations of the applicable zone and accessory structure requirements and are not visible from off the site to the maximum extent feasible.

  1. Solar Energy System. The installation of a solar energy system to the roof or side of a building, provided that the system complies with applicable height limit requirements; and ground-mounted systems comply with the setback requirements and height limitations of the applicable zone and accessory structure requirements and are not visible from off the site to the maximum extent feasible.

    1. Utilities. The erection, construction, alteration, or maintenance by a public utility or public agency of utilities intended to service existing or nearby approved developments shall be permitted in any zone. These include: water; gas; electric; supply or disposal systems; including wires, mains, drains, sewers, pipes, conduits, cables, fire-alarm boxes, police call boxes, traffic signals, hydrants, etc., but not including new transmission lines and structures. See Section D3-12 for utility undergrounding requirements. Satellite and wireless communications antennas are not exempt, and are instead subject to Chapter D4-IV (Wireless Telecommunications Facilities).

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D2-5 - Temporary Uses

Requirements for establishing a temporary use (for example, a construction yard, seasonal sales lot, special event, temporary office trailer, etc.) are in Section D6-27 (Temporary Use Permits).

Chapter II – Residential Zones

Contents:

D2-6 - Purpose

D2-7 - Purposes of the Residential Zones

D2-8 - Residential Zone Land Uses and Permit Requirements D2-9 - Residential Zone General Development Standards D2-10 - RC and HR Zone Clustering Requirements

D2-6 - Purpose

This Chapter lists the land uses that may be allowed within the residential zones established by Section D1-7 (Zoning Map and Zones), determines the type of land use permit/approval required for each use, and provides basic standards for site layout and building size.

D2-7 - Purposes of the Residential Zones

The purposes of the residential zones and the manner in which they are applied are as follows.

  • A. RC (Rural Conservation) zone (0.0 to 0.2 du/ac). The RC zone is applied to areas of the City without urban services, with open space and habitat value, where rural single-family residential development may occur at densities of up to one unit per five gross developable acres. Clustering is encouraged to permit suitable development sites with less than 20 percent slope, where the overall project preserves 90 percent of its site in open space. Minimum lot size for new parcels is at least five acres. The RC zone is consistent with and implements the Rural Conservation land use classification of the General Plan.

nsities of up to one unit per five gross developable acres. Clustering is encouraged to permit suitable development sites with less than 20 percent slope, where the overall project preserves 90 percent of its site in open space. Minimum lot size for new parcels is at least five acres. The RC zone is consistent with and implements the Rural Conservation land use classification of the General Plan.

  • B. HR (Hillside Residential) zone (0.0 to 2.0 du/ac). The HR zone is applied to hillside areas of the City appropriate for single-family dwellings, where proposed development requires special standards to ensure resource preservation and limited visual impacts. Single-family residential development may occur at densities of up to two units per acre. Clustering is required to permit suitable development sites on less than 20 percent slope, and to preserve 70 percent of an overall development site in open space. Minimum lot size for new parcels is at least five acres. The HR zone is consistent with and implements the Hillside Residential land use classification of the General Plan.

  • C. RE (Residential Estate) zone (0.2 to 3.0 du/ac). The RE zone is applied to areas of the City appropriate for very low density residential land uses, at densities of 0.2 to 3.0 units per acre, compatible with the topography and public service capacities. The specific allowable density for each parcel is shown on the Zoning Map by a numerical suffix residential density designator (see Section D2-8). Minimum lot size for new parcels ranges from 15,000 to 20,000 square feet. The RE zone is consistent with and implements the Low Density Residential land use classification of the General Plan.

  • D. RS (Single-Family Residential) zone (3.0 to 15.0 du/ac). The RS zone is applied to areas of the City appropriate for single-family residential land uses in neighborhoods at a density of three to 15 units per net acre, subject to appropriate standards. The specific allowable density for each parcel is shown on the Zoning Map by a numerical suffix residential density designator (see Section D2-8). Minimum lot size for new parcels ranges from 2,900 to 12,000 square feet. Depending upon the applicable residential density designator, the RS zone is consistent with and implements the Low Density

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Residential, Low-Medium Density Residential, and Medium Density Residential land use classifications of the General Plan.

  • E. RM (Medium-Density Residential) zone (6.0 to 15.0 du/ac). The RM zone is applied to areas of the City appropriate for multiple residential uses, including duplexes, townhouses, or cluster housing with landscaped open space for residents' use at a density of six to 15 units per net acre. Singlefamily dwellings are also permitted. Minimum lot size for new parcels is 2,900 square feet or larger. The RM zone is consistent with and implements the Medium Density Residential land use classification of the General Plan.

multiple residential uses, including duplexes, townhouses, or cluster housing with landscaped open space for residents' use at a density of six to 15 units per net acre. Singlefamily dwellings are also permitted. Minimum lot size for new parcels is 2,900 square feet or larger. The RM zone is consistent with and implements the Medium Density Residential land use classification of the General Plan.

  • F. RMH (Medium-High Density Residential) zone (15.0 to 22.0 du/ac). The RMH zone is applied to areas of the City appropriate for townhouses or apartments at a density of 15 to 22 units per net acre. Minimum lot size for new multifamily parcels is 10,000 square feet or larger. Single-family dwellings are also permitted with a minimum lot size for new parcels of 2,000 square feet with a maximum of 3,100 based on the per acre RMH density range. The RMH zone is consistent with and implements the Medium-High Density Residential land use classification of the General Plan.

  • G. RH (High-Density Residential) zone (22.0 to 30.0 du/ac). The RH zone is applied to areas of the City appropriate for compact, high density, well-designed residential development, including apartments and town houses with a density range of 22 to 30 units per net acre. Proposed development will reflect high quality design with integrated open space and recreational and/or cultural amenities, as well as providing workforce housing, structured parking, and units of various number of bedrooms, with specific attention to three and more bedroom units to achieve the overall goal of providing diverse types of dwelling units. Minimum lot size for new parcels is 10,000 square feet or larger. The RH zone is consistent with and implements the Medium-High Density Residential land use classification of the General Plan.

  • H. RVH (Multiple Family-Very High Density) zone (30.0 to 50.0 du/ac). The RVH zone is applied to areas appropriate for the highest density multiple-family residential development within the City, at densities between 30 and 50 units per net acre. Proposed development will reflect high quality design with integrated open space and recreational and/or cultural amenities, as well as providing workforce housing, structured parking, and units of various number of bedrooms, with specific attention to three and more bedroom units to achieve the overall goal of providing diverse types of dwelling units. Minimum lot size for new parcels is 10,000 square feet or larger. The RVH zone is consistent with and implements the High-Very High Density Residential land use classification of the General Plan.

(Ord. No. 534, § 1 (Exh. A-1), 10/14/2025)

Effective on: 11/13/2025

D2-8 - Residential Zone Land Uses and Permit Requirements

  • A. Applicability. Table 2-1 identifies the uses of land allowed by this Zoning Ordinance in each residential zone, and the land use permit required to establish each use, in compliance with Section D2-3 (Allowable Land Uses and Permit Requirements).

Note: Where the last column in the table ("Specific Use Regulations") includes a section number, the regulations in the referenced section apply to the use. Provisions in other sections of this Zoning Ordinance may also apply.

  • B. Additional City review requirements. A land use that is authorized by the planning permit required by Table 2-1 may also require Architectural Review (Section D6-22), and/or Preliminary Plan Review (Section D6-26).

  • C. Temporary uses. Section D6-27 (Temporary Use Permits) establishes permit requirements and standards for all allowable temporary uses.

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TABLE 2-1
Allowed Land Uses and Permit
Requirements for Residential
Zones
TABLE 2-1
Allowed Land Uses and Permit
Requirements for Residential
Zones
TABLE 2-1
Allowed Land Uses and Permit
Requirements for Residential
Zones
P P Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
MUP Minor U se Permit required
UP Use Permit required
S Permit requirement set **by ** Specific Use Regulations
ZC **Zoning ** Clearance required
Use not allowed
LAND USE (1) PERMIT REQUIRED BY DISTRICT Specific Use
Regulations
RC HR RE RS RM RMH RH RVH
AGRICULTURAL & OPEN SPACE USES
Agriculturalaccessorystructure P P P D4-26
Beekeeping- Apiary P P P P D4-85
Farm animal keeping- less than
1 acre
Farm animal keeping - max. 2
heads on 1 acre orgreater
P P P
Farm animal keeping - 3 heads
or more on 1 acre orgreater
MUP MUP MUP
RECREATION, EDUCATION & PUBLIC ASSEMBLY USES
Golf course, country club UP UP UP UP
Equestrian facilities UP UP UP
Library, museum, gallery UP UP
Meeting facility, public or
private
UP UP UP UP UP UP UP UP
Park and recreation facilities,
noncommercial
UP UP UP UP UP UP UP UP
Private residential recreation
facility(inproject)
MUP MUP MUP MUP MUP MUP
Schools, public or private UP UP
RESIDENTIAL USES
Animal - Wild or Exotic S(2) S(2) S(2) S(2) S(2) S(2) S(2) S(2) B2
Animal – Domestic P P P P P P P P
Chickens, raisingof P P P P D4 Chapter VII
Cottage Food Operation S S S S S S S S D4-33
Emergency shelter P P P P P P P P
Home occupation S S S S S S S S D4-33
Mobile homepark UP UP UP UP UP UP UP UP D4-36
Multi-family housing P P P P
Organizational house(sorority,
monastery, etc.)
UP UP UP UP UP
Residentialaccessory useor
structure
P P P P P P P P D4-26
Residential care, 6 or fewer
clients
P P P P P P P P
Residential care, 7 or more
clients
UP UP UP UP UP UP UP UP
Rooming or boarding house P P P P P P P P
AccessoryDwellingUnit (ADU) P P P P P P P P D4-39

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TABLE 2-1
Allowed Land Uses and Permit
Requirements for Residential
Zones
TABLE 2-1
Allowed Land Uses and Permit
Requirements for Residential
Zones
TABLE 2-1
Allowed Land Uses and Permit
Requirements for Residential
Zones
P P Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
Permitted Use, Zoning Clearance may be
required prior to operation
MUP Minor U se Permit required
UP Use Permit required
S Permit requirement set **by ** Specific Use Regulations
ZC **Zoning ** Clearance required
Use not allowed
LAND USE (1) PERMIT REQUIRED BY DISTRICT Specific Use
Regulations
RC HR RE RS RM RMH RH RVH
Single-familydwelling P P P P P P
Single-room occupancy unit UP UP
Supportive housing P P P P P P P P
Transitional housing P P P P P P P P
SERVICES - GENERAL
Child day care -Smallorlarge
familydaycare home
P P P P P P P P
Day care center -Childoradult UP UP UP UP UP UP UP UP
Lodging-Bed & breakfast inn
(B&B)
S S S S D4-27
Lodging - Short term rental
(STR)
S S S S D4-27
Public safety facility UP UP UP UP UP UP UP UP
TRANSPORTATION, COMMUNICATIONS &
INFRASTRUCTURE
Utility facility UP(3) UP(3) UP(3) UP(3) UP(3) UP(3) UP(3) UP(3)
Utility infrastructure P(3) P(3) P(3) P(3) P(3) P(3) P(3) P(3)
Windmillfor electricity
generation
UP(3) UP(3) UP(3) D4-23
Wireless telecommunications
facility
S(3) S(3) S(3) S(3) S(3) S(3) S(3) S(3) D4 Chapter IV
Notes:
(1) SeeDivision D8for land use definitions.
(2) See San Ramon Municipal CodeDIVISION B2for wild or exotic animal regulations.
(3) Architectural Review may also be required; see SectionD6-22.
Key to Zoning District Symbols Key to Zoning District Symbols Key to Zoning District Symbols Key to Zoning District Symbols
--- --- --- ---
RC Rural Conservation RM MediumDensityResidential
HR Hillside Residential RMH Medium-High DensityResidential
RE Residential Estate RH High DensityResidential
RS Single-FamilyResidential RVH Multi-FamilyVeryHigh Density
Key to Zoning District Symbols Key to Zoning District Symbols Key to Zoning District Symbols Key to Zoning District Symbols
--- --- --- ---
RC Rural Conservation RM MediumDensityResidential
HR Hillside Residential RMH Medium-High DensityResidential
RE Residential Estate RH High DensityResidential
RS Single-FamilyResidential RVH Multi-FamilyVeryHigh Density

(Ord. No. 496, § 2, 01/28/2020; Ord. No. 534, § 1 (Exh. A-1), 10/14/2025)

Effective on: 11/13/2025

D2-9 - Residential Zone General Development Standards

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Subdivisions, new land uses and structures, and alterations to existing land uses and structures, shall be designed, constructed, and established in compliance with the requirements in Tables 2-2, 2-3, and 2-4 in addition to the applicable standards (e.g., landscaping, parking and loading, etc.) in Division D3 of this Zoning Ordinance and the adopted Objective Design and Development Standards.

TABLE 2-2 - RC, HR, AND RE DEVELOPMENT DEVELOPMENT STANDARDS STANDARDS STANDARDS STANDARDS
Development Feature Requiremen **t by ** Zone
RC HR RE-A RE-B
Minimumlot size Minimum area and widthforparcelsproposed in new subdivisions.
Area (net)
Width
Depth
5 ac (1) 5 ac (1) 20,000 sf 15,000 sf
300 ft (1) 300 ft (1) 100 ft 100 ft
300 ft (1) 300 ft (1) 150 ft 120 ft
Setbacks Minimum setbacks required. See SectionD3-10 for exceptions, and allowed
projections into setbacks.
Front
Side - Interior (each)
Side - Corner
Sides – Non-Corner Lot Aggregate
Sides – Corner Lot Aggregate
Rear
Accessorystructures
30 ft 30 ft 25 ft 20 ft
20 ft 20 ft 15 ft 10 ft
25 ft 25 ft 20 ft 15 ft
40 ft 40 ft 35 ft 25 ft
45 ft 45 ft 35 ft 25 ft
35 ft 30 ft 15 ft 15 ft
See SectionD4-26(AccessoryStructures)
Lot coverage, FAR Maximum percentage of totallot area that may be covered by structures, and
maximumfloor area ratio (FAR).
Lot coverage
FAR
N.A N.A N.A N.A
N.A N.A N.A N.A
Height limit Maximum allowable height of structures. See SectionD3-6 (Height Limits and
Exceptions)for height measurement requirements, and height limit exceptions.
Maximum height 35 ft
Exterior finish materials The exterior walls of allprimarystructuresshall have a nonmetallic finish
Landscaping See Section D3-II (Landscape Design Standards)
Driveways andPaved Area See SectionD3-37(Driveways andSiteAccess)
Parking See Chapter D3-III (Parkingand Loading)
Signs See Chapter D3-IV (Signs)
Notes: (1)Clusteringis encouraged in the RCzon eand required in HR. See SectionD2-10
TABLE 2-3 - RS RS DEVELOPMENT DEVELOPMENT STANDARDS STANDARDS STANDARDS STANDARDS STANDARDS
--- --- --- --- --- --- --- --- --- --- --- --- ---
Development Feature Requirement **by ** Zone
RS-12 RS-10 RS-7 RS-6 RS-D
Minimum lot size Minimum area and width for parcels proposed in new subdivisions.
Area (net)
Width
Depth

12,000 sf
10,000 sf 7,000 sf 6,000 sf 2,900 sf
100 ft 70 ft 65 ft 60 ft 40 ft
100 ft 100 ft 95 ft 90 ft 70 ft
Setbacks Minimum setbacks required. See SectionD3-10 for exceptions, and allowed projections into
setbacks.
Front
Side - Interior (each)
Side - Corner
Sides – Non-Corner Lot
Aggregate
20 ft 20 ft 20 ft 20 ft 15 ft(1)

10 ft
10 ft 5 ft 5 ft 0 ft

15 ft
15 ft 15 ft 15 ft 10 ft


25 ft
20 ft 15 ft 15 ft 10 ft

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TABLE 2-3 - RS RS DEVELOPMENT DEVELOPMENT STANDARDS STANDARDS STANDARDS STANDARDS STANDARDS
Development Feature Requirement **by ** Zone
RS-12 RS-10 RS-7 RS-6 RS-D
Sides – Corner Lot Aggregate
Rear
Accessorystructures

25 ft
25 ft 20 ft 20 ft 10 ft
15 ft 15 ft 15 ft 15 ft 12 ft

See SectionD4-26 (AccessoryStructures)
Lot coverage, FAR Maximum percentage of total lot area that may be covered by structures, and maximum floor
area ratio (FAR).
Lot coverage
FAR

N.A
N.A N.A N.A N.A
N.A N.A N.A N.A N.A
Height limit Maximum allowable height of structures. See SectionD3-6 (Height Limits and Exceptions) for
height measurement requirements, and height limit exceptions.
Maximum height 35 ft
Exterior finish materials The exterior walls of allprimarystructures shall have a nonmetallic finish.
Landscaping See Chapter D3-II(Landscape Design Standards)
Driveways and Paved Area See SectionD3-37 (Driveways and Site Access)
Parking See Chapter D3-III(Parkingand Loading)
Signs See Chapter D3-IV(Signs)
Notes: (1) Driveway aprons require a minimumgaragefaçade setback of 18 feet.
TABLE 2-4 - **RM, ** **RMH, ** RH, AND AND RVH DEVELOPMENT DEVELOPMENT DEVELOPMENT DEVELOPMENT
--- --- --- --- --- --- --- --- --- --- --- --- ---
Development Feature Requirement **by ** Zone
RM RMH RH
Minimum lot size Minimum area and widthforparcelsproposed in new subdivisions.
Area (net)
Width
Depth
2,900 sf 10,000 sf 10,000 sf
40 ft 70 ft 70 ft
70 ft 90 ft 90 ft
Setbacks Minimum setbacks required. See SectionD3-10 for exceptions, and allowed projections into
setbacks.
Front
Side - Interior (each)
Side - Corner
Sides - Aggregate
Rear
Accessorystructures
15 ft (1) 15 ft (1) 15 ft
6 ft 6 ft 6 ft
10 ft 10 ft 10 ft
16 ft 16 ft 16 ft
12 ft 15 ft 10 ft
See SectionD4-26(AccessoryStructures)
Non-Residential Lot
coverage, FAR
Maximum percentage of total lot area that may be covered by structures, and maximum
nonresidentialfloor area ratio (FAR)for non-residential uses identified in Table 2-1.
Lot coverage (non-residential)
FAR (max non-residential)
25% 35% 35%
0.50 0.50 0.50
Height limit Maximum allowable height of structures. See SectionD3-6 (Height Limits and Exceptions) for
height measurement requirements, and height limit exceptions.
Maximum height 40 ft
Exterior finish materials The exterior walls of allprimarystructures shall have a nonmetallic finish.
Landscaping See Chapter D3-II (Landscape Design Standards)
Driveways and Paved Area See SectionD3-37(Driveways and Site Access)
Parking See Chapter D3-III (Parkingand Loading)
Signs See Chapter D3-IV (Signs)
Notes:
1. Driveway aprons require a minimum garage façade setback of 18 feet.
2. Five feet is allowed for a Row-house façade with stoop, where the first floor is elevated a minimum of three feet above the sidewalk.

City of San Ramon, CA | Municipal Code

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(Ord. No. 534, § 1 (Exh. A-1), 10/14/2025) Effective on: 11/13/2025

D2-10 - RC and HR Zone Clustering Requirements

  • A. Applicability. Residential development including four or more units should be clustered within the RC zone, and shall be clustered within the HR zone, in compliance with this Section.

  • B. Cluster development design standards. The design of a proposed cluster development shall comply with the following standards.

    1. Minimum lot area. Each clustered lot shall be a minimum of 20,000 square feet.

    2. Maximum cluster size. No more than 10 dwelling units shall be within a single cluster.

    3. Setback and buffer requirements. Proposed structures shall be located on each parcel with minimum setbacks of 30 feet in the front, 20 feet on each side, and 35 feet in the rear. A residential cluster shall be separated from each other cluster and any roadway abutting the site by a minimum of 100 feet.

  • C. Open space preservation.

    • Open space preservation. Figure 2-1 – Location of Residential Cluster 1. RC zone. Clustering is encouraged to permit suitable development sites with less than 20 percent slope, and so that the overall project will preserve 90 percent of its site as open space.
    1. HR zone. Clustering is required to permit suitable development sites with less than 20 percent slope. The overall project shall preserve 70 percent of its site as open space.

    2. Preservation requirements. The open space on the site that is preserved by clustering shall be retained as part of an unsubdivided open space parcel or in individual open space parcels, and shall not be eligible for future development; provided that open space parcels may include conservation open space, community recreation open space, public access opens space, or buffer open space.

  • D. Maximum residential density. The maximum allowed residential density on a site where the development is clustered in compliance with this Section shall be based on the percentage of total site area that is permanently preserved as open space, as follows.

TABLE 2-5 - MAXIMUM DENSITY IN CLUSTERED DEVELOPMENT TABLE 2-5 - MAXIMUM DENSITY IN CLUSTERED DEVELOPMENT TABLE 2-5 - MAXIMUM DENSITY IN CLUSTERED DEVELOPMENT
Percent of Site Area
Permanently Preserved as
Open Space
Maximum Allowable Density
RC Zone HR Zone
Up to 49.9% 1 unit per net 5 acres
(0.20 unitsper net acre)
1 unit per net 5 acres
(0.2 unitsper net acre)
50 to 59.9% 1 unit per 4 net acres
(0.25 unitsper net acre)
1 unit per 2.5 net acres
(0.4 unitsper net acre)
60 to 69.9% 1 unit per 3.33 net acres
(0.30 unitsper net acre)
1 unit per 1.25 net acres
(0.8 unitsper net acre)
70 to 79.9% 1 unit per 2.85 net acres
(0.35 unitsper net acre)
1 unit per 0.5 net acres
(2.0 unitsper net acre)
80% or more 1 unit per 2.50 net acres
(0.40 unitsper net acre)
1 unit per 0.5 net acres
(2.0 unitsper net acre)
TABLE 2-5 - MAXIMUM DENSITY IN CLUSTERED DEVELOPMENT TABLE 2-5 - MAXIMUM DENSITY IN CLUSTERED DEVELOPMENT TABLE 2-5 - MAXIMUM DENSITY IN CLUSTERED DEVELOPMENT
--- --- ---
Percent of Site Area
Permanently Preserved as
Open Space
Maximum Allowable Density
RC Zone HR Zone
Up to 49.9% 1 unit per net 5 acres
(0.20 unitsper net acre)
1 unit per net 5 acres
(0.2 unitsper net acre)
50 to 59.9% 1 unit per 4 net acres
(0.25 unitsper net acre)
1 unit per 2.5 net acres
(0.4 unitsper net acre)
60 to 69.9% 1 unit per 3.33 net acres
(0.30 unitsper net acre)
1 unit per 1.25 net acres
(0.8 unitsper net acre)
70 to 79.9% 1 unit per 2.85 net acres
(0.35 unitsper net acre)
1 unit per 0.5 net acres
(2.0 unitsper net acre)
80% or more 1 unit per 2.50 net acres
(0.40 unitsper net acre)
1 unit per 0.5 net acres
(2.0 unitsper net acre)

City of San Ramon, CA | Municipal Code

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