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Antioch, CA Code of Ordinances
City of Antioch, California Code of Ordinances
ADOPTING ORDINANCE
TITLE 1: GENERAL PROVISIONS
TITLE 2: ADMINISTRATION
TITLE 3: FINANCE
TITLE 4: PUBLIC SAFETY
TITLE 5: PUBLIC WELFARE, MORALS, AND CONDUCT
TITLE 6: SANITATION AND HEALTH
TITLE 7: PUBLIC WORKS
TITLE 8: BUILDING REGULATIONS
TITLE 9: PLANNING AND ZONING
CHAPTER 1: [RESERVED]
CHAPTER 2: OFFICIAL PLAN LINES
CHAPTER 3: DEVELOPMENT IMPACT FEES
CHAPTER 4: SUBDIVISIONS
CHAPTER 5: ZONING
ARTICLE 1: TITLE, PURPOSE, SCOPE, AND ADOPTION OF PLAN
ARTICLE 2: DEFINITIONS
ARTICLE 3: ESTABLISHMENT OF DISTRICTS
ARTICLE 4: [RESERVED]
ARTICLE 5: SIGN REGULATIONS
ARTICLE 6: HEIGHT AND AREA REGULATIONS AND TABLE
ARTICLE 7: MULTI-FAMILY RESIDENTIAL OBJECTIVE DESIGN STANDARDS
ARTICLE 8: PROJECTIONS INTO YARDS
ARTICLE 9: SPECIAL USE REGULATIONS
ARTICLE 10: LANDSCAPING AND IRRIGATION
ARTICLE 11: SITE OBSTRUCTIONS AT INTERSECTIONS
ARTICLE 12: TREE PRESERVATION AND REGULATION
ARTICLE 13: SCREENING OF MECHANICAL EQUIPMENT/OUTDOOR STORAGE
ARTICLE 14: REFUSE STORAGE AREA DESIGN GUIDELINES
ARTICLE 15: UNDERGROUND UTILITIES
ARTICLE 16: FENCES, WALLS, HEDGES AND SCREEN PLANTINGS
ARTICLE 17: PARKING REQUIREMENTS
ARTICLE 18: BUILDING MOVING
ARTICLE 19: NOISE ATTENUATION REQUIREMENTS
ARTICLE 20: SWIMMING POOLS AND HOT TUBS
ARTICLE 21: FIRE RETARDANT ROOFING MATERIALS
ARTICLE 22: HOME SIZE MODIFICATIONS
ARTICLE 23: PLANNED DEVELOPMENT DISTRICT
ARTICLE 24: HILLSIDE PLANNED DEVELOPMENT DISTRICT
ARTICLE 25: PLANNING COMMISSION AND ZONING ADMINISTRATOR
ARTICLE 26: DESIGN REVIEW DUTIES AND RESPONSIBILITIES
ARTICLE 27: DESIGN REVIEW, USE PERMITS, ADMINISTRATIVE USE PERMITS AND VARIANCES
ARTICLE 28: AMENDMENTS
ARTICLE 29: INTERPRETATIONS, ENFORCEMENT AND PENALTY
ARTICLE 30: NONCONFORMING USES AND STRUCTURES
ARTICLE 31: CONDOMINIUM CONVERSIONS
ARTICLE 32: DEVELOPMENT AGREEMENTS
ARTICLE 33: SPECIFIC PLANS
ARTICLE 34: SENIOR HOUSING OVERLAY DISTRICT
ARTICLE 35: DENSITY BONUS PROGRAM
ARTICLE 36: ZONING MAP
ARTICLE 37: DETERMINATION OF BOUNDARIES
ARTICLE 38: LAND USE REGULATIONS
ARTICLE 39: REASONABLE ACCOMMODATION
ARTICLE 40: RESIDENTIAL GROWTH MANAGEMENT
ARTICLE 41: RRMP RODDY RANCH MASTER PLAN DISTRICT
ARTICLE 42: PROHIBITION ON CONVERSION OF SENIOR MOBILEHOME PARKS
TITLE 10: PARKS AND RECREATION
TITLE 11: TENANT PROTECTIONS
TABLE OF SPECIAL ORDINANCES
PARALLEL REFERENCES
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§ 9-5.519 TOBACCO-RELATED SIGNS.
   (A)   Window signs, freestanding signs, shingle signs, temporary signs, awning and canopy signs, business opening signs, portable off-site signs, wall signs, gasoline service station signs and commercial logo flags which advertise or promote tobacco products are prohibited when located within 1,600 feet of an elementary or secondary school, public playground or playing field when visible from the public street or sidewalk. No part of this ordinance shall be construed to regulate messages which do not propose or infer a commercial message.
   (B)   No sign, banner, flag or any other display which advertises or promotes tobacco products shall be permitted on any city-owned facility.
   (C)   In order to allow the terms of this ordinance to become known to the persons affected by it, this ordinance shall not be formally enforced by use of the provisions contained in it until 1-2-00.
(Ord. 961-C-S, passed 9-14-99)
ARTICLE 6: HEIGHT AND AREA REGULATIONS AND TABLE
§ 9-5.601 HEIGHT AND AREA REGULATIONS.
   The following chart and text are adopted as the city’s basic height and area regulations. First find the appropriate zoning district on the left hand side of the table. Read across the chart opposite the specific zone in question and the height or area requirement for that zone, or a letter, will appear in the appropriate column. If a letter appears in any cell, it refers to the, requirement listed in the footnotes following the table.
(Ord. 897-C-S, passed 10-25-94; Am. Ord. 930-C-S, passed 7-29-97; Measure K Initiative, adopted 11-8-05Am. Ord. 1003-C-S, passed 2-25-03; Am. Ord. 1064-C-S, passed 12-13-05; Am. Ord. 2089-C-S, passed 6-24-14; Am. Ord. 2169-C-S, passed 6-25-19; Am. Ord. 2211-C-S, passed 4-26-22; Am. Ord. 2224-C-S, passed 2-14-23; Am. Ord. 2235-C-S, passed 11-28-2023; Am. Ord. 2237-C-S, passed 11-28-2023)
Note: Click TABLE 9-5.601 to view in printer-friendly, PDF.
HEIGHT, AREA & SETBACK REGULATIONS FOR PRIMARY STRUCTURE
Zone
Maximum Height Feetb
Minimum Building Site Sq. Ft.
Minimum Lot Width in Feet
Maximum Lot Coverage
Minimum Density Allowed (Units per Gross Developable Acre)
Maximum Density Allowed Units Per Gross Developable Acred
Front Yard Minimuma, k
Minimum Side Yard Required in Feete
Minimum Rear Yard Required in Feet
Corner
Interior
Corner
Interior
HEIGHT, AREA & SETBACK REGULATIONS FOR PRIMARY STRUCTURE
Zone
Maximum Height Feetb
Minimum Building Site Sq. Ft.
Minimum Lot Width in Feet
Maximum Lot Coverage
Minimum Density Allowed (Units per Gross Developable Acre)
Maximum Density Allowed Units Per Gross Developable Acred
Front Yard Minimuma, k
Minimum Side Yard Required in Feete
Minimum Rear Yard Required in Feet
Corner
Interior
Corner
Interior
RE
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
RR
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
CIH
IN COMPLIANCE WITH THE COMMERCIAL INFILL HOUSING OVERLAY DISTRICT OBJECTIVE DESIGN STANDARDS DOCUMENT
IH
IN COMPLIANCE WITH THE INNOVATIVE HOUSING OVERLAY DISTRICT OBJECTIVE STANDARDS IN § 9-5.3850
R-4
35
6,000
65
60
40%
NA
4 du/acre
f
f
5 ft.
20 ft.
R-6
35
6,000
65
60
40%
NA
6 du/acre
f
f
5 ft.
20 ft.
R-10
45
6,000
65
60
40%
NA
10 du/acre
f
f
5 ft.
10 ft.
R-20
45
20,000
70
70
40%
NA
20 du/acre
f
f
5 ft.
10 ft.
R-25
45
20,000
70
70
50%
20 du/acre
25 du/acre
f
f
5 ft.
10 ft.m
R-35
45
20,000
70
70
50%
25 du/acre
35 du/acre
f
f
5 ft.
10 ft.m
PBC
35
20,000
65
60
35%
NA
0
f
f
0 ft.
0 ft.
C-0
35
20,000
65
60
35%
NA
0
f
f
0 ft.
10 ft.
C-1
35
20,000
65
60
35%
NA
0
f
f
0 ft.
10 ft.
C-2
35
20,000
65
60
35%
NA
0
f
f
0 ft.
10 ft.
C-3
70
20,000
65
60
35%
NA
0
f
f
0 ft.
10 ft.
MCRj
45
6,500
65
60
50%
NA
20 du/acre
f
f
5 ft.
10 ft.
RTCj
50
2,500
25g
25g
100%
NA
20h
0i
0i
0 ft.
0 ft.
RTR-10
45
3,500
45
45
50%
NA
12
15
10
5 ft.
15 ft.
RTR-20
45
20,000
100
100
50%
NA
20
15
10
5 ft.
10 ft.
WF
45
6,500
60
60
60%
NA
0
0
0
0 ft.
0 ft.
M-1
45
40,000
100
100
50%
NA
0
f
f
0 ft.
0 ft.
M-2
70
40,000
100
100
50%
NA
0
f
f
0 ft.
0 ft.
HPD
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
PD
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
RRMP
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
IN A MANNER CONSISTENT WITH ARTICLE 41 OF THE MUNICIPAL CODE
TOD
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
H
70
SAME AS C-0 ZONEk
OS
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
S
TO BE DETERMINED BY CITY COUNCIL THROUGH PLANNED DEVELOPMENT PROCESS
SH
SAME AS UNDERLYING BASE ZONE
T
SAME AS UNDERLYING BASE ZONE
 
a   Where 40% or more of the frontage (excluding reversed frontage lots) in a block has been improved with buildings, the minimum required front yard for main buildings shall be the average of the improved lots if less than the front yard requirements, but not less than six feet from the property line.
b   Height shall mean the vertical distance from the average level of the highest and lowest point of that portion of the lot covered by the structure, excluding below ground basements, to the topmost point of the roof. Exceptions to the specified height limitation shall include the spires, belfries, cupolas and domes of churchesreligious facilities (e.g., churches, mosques, temples), monuments, water towers, fire and hose towers, observation towers, distribution and transmission towers, lines and poles, chimneys, smokestacks, flag poles, radio towers, excluding wireless communications facilities subject to § 9-5.3846, equipment penthouses encompassing less than 20% of total roof area and less than eight feet in height, and parapets less than 30 inches in height, unless otherwise governed by this chapter.
c   Minimum lot area in all zones shall not apply to the condominium parcelization of a larger project where land is being divided for individual building envelopes.
d   Maximum density allowed is defined in the city General Plan as per the maximum developable gross acreage definition found in this chapter.
e   For at least 25% of the lots in a given subdivision, one side yard of an interior lot shall be 10 feet in width and the other side yard can be five feet. The 10-foot side yard area shall remain as unrestricted open area. This shall also apply to all two-story single-family residential lots. On any parcel of land of an average width of less than 50 feet, which parcel was under one ownership or is shown as a lot on any subdivision map filed in the office of the County Recorder prior to April 11, 1950, when the owner thereof owns no adjoining land, the width of each side yard may be reduced to 10% of the width of such parcel, but in no case to less than three feet.
f   Front yard and street side setbacks shall be reserved for landscaping only, excluding access and egress driveways and shall be determined on a graduated scale based upon type of street and land use as follows:
      (1)   Non-residential uses.
         Arterial street: minimum 30-foot setback with 30-foot landscaping on all frontages.
         Collector street: minimum 25-foot setback with 25-foot landscaping.
         Local street: minimum 20-foot setback with 20-foot landscaping.
      (2)   Single-family detached and two-family dwelling uses.
         Arterial street: minimum 30-foot setback with 30-foot landscaping on all frontages.
         Collector street: minimum 25-foot setback and landscaping for front yard and 10-foot street side yard setback with landscaping
         Local street: minimum 20-foot front yard setback with 20 foot of landscaping and 10-foot street side yard setback with landscaping.
      (3)   Multi-family dwelling uses.
         Arterial street: minimum 15-foot setback with 15-foot landscaping on all frontages.
         Collector street: minimum 15-foot setback with 15-foot landscaping.
         Local street: minimum 10-foot setback with 10-foot landscaping.
\g   New construction with frontage in excess of the minimum lot width shall reflect the pattern of building widths in facade design.
h   Within the area bounded by the Burlington Northern Santa Fe Railroad, “I” Street, Second Street, and “E” Street, residential density may be increased to 45 dwelling units per acre provided:
      (1)   The residential use is part of a mixed use development with the entire first floor devoted to commercial use;
      (2)   The proposed development provides public amenities as described in § 4 (relating to residential use in RTC); and
      (3)   The project has received use permit approval from the Planning Commission.
i   Buildings in the RTC district shall be placed on the property line except for:
      (1)   Setbacks to accommodate outdoor dining and plazas, provided that such setbacks do not exceed a depth of one-third of the lot depth;
      (2)   Courtyards, promenades, and plazas located on any portion of the site; and
      (3)   Where a setback is necessary to maintain the uniform setback of building facades.
j   The first floor of a building shall extend from property line to property line except:
      (1)   In setback areas for outdoor dining, plazas; and
      (2)   For required vehicular or pedestrian access.
k   Notwithstanding any other provisions of this chapter for yard requirements, in any residential district the front of any garage shall be not less than 20 feet from the exterior property line on which such garage faces.
l   For projects that consist of attached single-family dwellings (townhomes), in which each dwelling occupies its own lots, the minimum lot area is 1,800 square feet and the minimum required interior side setback is zero.
m   Where a multi-family dwelling abuts a lot that is zoned RR, RE, R4 or R6, a minimum rear yard of 20 feet shall be provided.
 
§ 9-5.602 LEGALLY ESTABLISHED YARD SETBACKS.
   On any property line where there is a legally established side or rear yard building setback line less than that required by the standards established by this chapter, that setback may be continued when expanding a structure for a use permitted by the zoning district in which the property is located, provided maximum lot coverage is not exceeded and all other required setbacks apply. This provision is not applicable to proposed expansions in front yard setbacks.
(Ord. 897-C-S, passed 10-25-94)
§ 9-5.603 ACCESSORY BUILDINGS.
   (A)   (1)   In residential districts, the maximum allowable height is 15 feet for accessory structures. Detached accessory structures shall be located behind the required front yard setback and cover no more than 40% of the rear yard area required for the main building. The minimum side yard for accessory structures is 20 feet on corner lots and five feet on interior lots. A five-foot rear yard setback is required, unless the property is a double-frontage lot in which case a ten foot rear yard setback is required.
      (2)   Exception. Portable storage sheds are exempt from setback requirements when placed in the rear yard. The required minimum setback from the front property line and/or street side yard property lines (for corner lots) must be maintained. A shed is considered portable when it meets the following criteria and does not need a building permit:
         (a)   Freestanding, moveable, and has no permanent foundation.
         (b)   Less than 120 square feet in area.
         (c)   Building height no greater than eight feet.
         (d)   Does not contain plumbing or electrical installations.
   (B)   In the event an accessory building is attached to the main building, it shall be considered structurally a part of the main building and shall comply in all respects with the requirements of this chapter applicable to the main building. Unless so attached, an accessory building in a residential district shall be at least five feet from any dwelling building existing or under construction on the same lot or any adjacent lot. In the case of a corner lot adjacent to a reversed frontage lot, accessory buildings shall not project beyond the front yard required or existing on the adjacent reversed frontage lot.
(Ord. 897-C-S, passed 10-25-94; Am. Ord. 930-C-S, passed 7-29-97; Am. Ord. 2237-C-S, passed 11-28-2023)
ARTICLE 7: MULTI-FAMILY RESIDENTIAL OBJECTIVE DESIGN STANDARDS
§ 9-5.701 PURPOSE AND APPLICABILITY.
   Multi-Family Objective Design Standards apply to residential mixed use and multiple-family dwellings in any district in which they are permitted or conditionally permitted, except for projects in the CIH Overlay, which are subject to § 9-5.3848 Commercial Infill Housing Overlay District regulations, and cottage communities in the IH Overlay, which are subject to § 9-5.3850 Innovative Housing Overlay District regulations. Multi-Family Objective Design Standards shall be adopted by resolution and may be amended from time to time. The purpose of these regulations is to promote high-quality design and provide a pleasant residential environment within the context of higher-density development; ensure the provision of amenities for residents of multi-family developments; foster pedestrian access; and create visually attractive street frontages that offer architectural and landscape interest.
(Ord. 2089-C-S, passed 6-24-14; Am. Ord. 2224-C-S, passed 2-14-23; Am. Ord. 2235-C-S, passed 11-28-2023)
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