Chapter 18.26 — DEVELOPMENT STANDARDS OVERLAY ZONE
San Dimas Zoning Code · 2026-06 edition · updated 2026-07-06 · San Dimas
§ 18.26.010. Purpose. ¶
The purpose of this chapter is to establish development standards and certain restrictions to allow for a variety in housing while striving to maintain the overall character of the underlying residential zones. It is intended to supplement the standards in the underlying single-family zone where deemed necessary, and appropriate to ensure development compatible with the area. (Ord. 1255 § 1, 2017)
§ 18.26.020. Development standard overlay zone designated. ¶
The development standards overlays shall be designated on official zoning maps, as follows:
A. Whenever a development standards overlay designation is placed on property or properties, those properties shall be subject to the provisions of the specified development standards overlay zone and any additional standards set forth herein in addition to the provisions of the underlying zone. When there may be conflicts, the overlay zone standards shall prevail.
B. Method of Application. The abbreviation "DS" shall be appended on the base zoning district on the official zoning map. In addition, a number may be attached to the overlay zone referring to any special standards developed in this chapter. The DS overlay zone may only be overlaid on property zoned primarily for single-family use but shall not be used for any specific plans.
(Ord. 1255 § 1, 2017)
§ 18.26.030. Development standard overlay zone created. ¶
Each development standard overlay zone created herein may have differing development standards to facilitate implementation of the additional standards.
A. Development standard overlay zone No. 1 (DS-1) is created as follows:
Geographic Area. Bounded by San Dimas Avenue on the east, Allen Avenue on the north, and generally bounded by Cataract Avenue to the west and Gladstone Street to the south and as further depicted on the official zoning map.
Specific Objectives. In addition to the determination that the plan complies with the purposes of the development standard overlay zone, the following specific findings shall be satisfied by the plan:
a. The overall plan should be comprehensive.
b. In relation to the scope and complexity of the development, its size should be such as to affect an integral land-planning unit and provide for adequate open spaces, circulation, off-street parking and pertinent development amenities.
c. It promotes quality site layout and energy-efficient development.
d. Diverse functional elements should be well integrated, properly oriented, and properly related to the topographic and natural features of the site.
e. It promotes infill development that is consistent in character and scale with established neighborhoods.
f. Architectural unity and harmony within the development and with the surrounding community should be attained.
One-Story Limitation and Building Height.
a. A minimum of fifteen percent of the parcels created for development shall be limited to one-story structures. In addition, no building or structures erected on these parcels shall have a height greater than twenty feet. Lots with such restrictions shall be determined at time of parcel or tract map review, and shall be so designated on the recorded map and identified on the overlay map, Exhibit A.
b. Parcels with said one-story limitation, shall have maximum site coverage of no more than forty percent of the total lot area, including covered patios, trellises, garages, and other covered structures.
Floor Area. The maximum size for any two-story residential dwelling unit shall be a maximum of four thousand square feet gross floor livable area. Total lot coverage shall not exceed thirty-five percent.
Street B Cul-de-Sac Standards. Parcels located on the northern portion of the cul-de-sac, as designated on Exhibit A, shall be subject to the following standards:
a. All structures shall be set back from the front property line at a distance to allow a minimum of three on-site parking spaces within the driveway.
b. Garages that are constructed at the front of the property with a street-facing garage door shall be limited to a width not to exceed twenty-four feet and only provide two parking spaces. A third garage space may be permitted, but only as a tandem space. Driveway width shall be limited to the width of the garage until an application is submitted for RV parking in the twelve-foot side yard setback adjacent to the garage.
EXHIBIT A
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B. Development standard overlay zone No. 2 (DS-2) is created as follows:
- Geographic Area. As demonstrated in the exhibit below and as further depicted on the official zoning map.
==> picture [463 x 399] intentionally omitted <==
Specific Objectives. In addition to the determination that the plan complies with the purposes of the development standard overlay zone, the following specific findings shall be satisfied by the plan:
a. It promotes infill development that is consistent in character and scale with established neighborhoods.
b. It promotes quality site layout.
c. It promotes architectural unity and harmony within the development and with the surrounding community.
One-Story Limitation and Lot Coverage Increase. Parcels within development standards overlay zone No. 2 which are adjacent to Walnut Avenue shall be limited to one story in height. Properties limited to one story in height are permitted an increase in lot coverage from thirty-five percent to forty percent.
Floor Area Ratio (FAR). In addition to the maximum allowed lot coverage of thirty-five percent, the maximum floor area ratio for any two-story residential dwelling unit shall be forty-five percent, excluding the first 400 square feet of the garage area. Porches, patio covers, gazebos, and other similar unenclosed structures shall not be included in the floor area ratio calculation.
Rear Yard Setback Requirements. All parcels except those which are adjacent to Walnut Avenue shall incorporate a minimum rear yard setback of fifteen feet from the dwelling unit
to the rear lot line. Parcels adjacent to Walnut Avenue, which are one story in height, shall incorporate a minimum rear yard setback of twelve feet. Accessory structures including detached unenclosed patio covers and swimming pools may encroach into the fifteen-foot or twelve-foot rear yard setbacks to a minimum required setback of five feet.
Access Restrictions. Vehicular access shall be prohibited from Moore Lane. All vehicular access shall be provided from a public street.
Presentation to Moore Lane. Improvements on lots abutting Moore Lane shall be designed in a manner which creates a pleasing aesthetic presentation to Moore Lane to the satisfaction of the development services director.
- (Ord. 1255 § 1, 2017; Ord. 1263 § 1, 2018)
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Ask AI about this code▸ Contents — San Dimas Zoning Code
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▸ Title 18 — Zoning
Overview- Chapter 18.04 — GENERAL PROVISIONS
- Chapter 18.08 — DEFINITIONS
- Chapter 18.12 — DEVELOPMENT PLAN REVIEW
- Chapter 18.14 — WATER-EFFICIENT LANDSCAPES
- Chapter 18.16 — ZONING DISTRICTS, MAPS AND BOUNDARIES
- Chapter 18.20 — RESIDENTIAL ZONES GENERALLY
- Chapter 18.22 — DENSITY BONUS
- Chapter 18.24 — S-F SINGLE-FAMILY RESIDENTIAL ZONE
- Chapter 18.26 — DEVELOPMENT STANDARDS OVERLAY ZONE
- Chapter 18.28 — SF-A SINGLE-FAMILY AGRICULTURE ZONE
- Chapter 18.32 — SF-H SINGLE-FAMILY HILLSIDE ZONE
- Chapter 18.35 — SF-DR SINGLE-FAMILY DOWNTOWN RESIDENTIAL ZONE
- Chapter 18.38 — ACCESSORY DWELLING UNITS
- Chapter 18.40 — AFFORDABLE HOUSING OVERLAY ZONE
- Chapter 18.42 — MULTIPLE-FAMILY (MF) ZONE
- Chapter 18.44 — MULTIPLE-FAMILY THIRTY UNITS PER ACRE (MF-30) …
- Chapter 18.48 — MF-D MULTIPLE-FAMILY ZONE— DUPLEX
- Chapter 18.50 — DOWNTOWN SPECIFIC PLAN
- Chapter 18.52 — RPD RESIDENTIAL PLANNED DEVELOPMENT ZONE
- Chapter 18.64 — A-L LIGHT AGRICULTURAL ZONE
- Chapter 18.92 — C-H COMMERCIAL-HIGHWAY ZONE
- Chapter 18.96 — C-N COMMERCIAL-NEIGHBORHOOD ZONE
- Chapter 18.104 — CPO COMMUNITY PARKING OVERLAY ZONE
- Chapter 18.108 — SCENIC HIGHWAY OVERLAY ZONE
- Chapter 18.112 — P-H PRIVATE HORSE OVERLAY ZONE
- Chapter 18.116 — CONSERVATION OVERLAY ZONE
- Chapter 18.122 — MOBILE HOME PARK ZONE
- Chapter 18.124 — OS OPEN SPACE ZONE
- Chapter 18.128 — INDUSTRIAL ZONES
- Chapter 18.132 — PS PUBLIC/SEMIPUBLIC ZONE
- Chapter 18.136 — A-P ADMINISTRATIVE PROFESSIONAL ZONE
- Chapter 18.140 — C-G CREATIVE-GROWTH ZONE
- Chapter 18.142 — DEVELOPMENT STANDARDS FOR SPECIFIC LAND USES
- Chapter 18.150 — WIRELESS COMMUNICATION FACILITIES
- Chapter 18.152 — SIGNS
- Chapter 18.156 — VEHICLE PARKING AND STORAGE
- Chapter 18.162 — TREE PRESERVATION
- Chapter 18.164 — HILLSIDE DEVELOPMENT
- Chapter 18.168 — ALTERNATIVE ENERGY SYSTEMS
- Chapter 18.170 — ELECTRIC VEHICLE CHARGING STATIONS
- Chapter 18.172 — PUBLICLY OWNED PROPERTY
- Chapter 18.180 — FLOOD CONTROL
- Chapter 18.184 — HOME BASED BUSINESSES
- Chapter 18.186 — RESERVED
- Chapter 18.188 — RESERVED
- Chapter 18.190 — SEXUALLY ORIENTED BUSINESSES
- Chapter 18.192 — UNCLASSIFIED USES
- Chapter 18.194 — MARIJUANA AND MEDICAL MARIJUANA
- Chapter 18.196 — TEMPORARY USES
- Chapter 18.198 — RECYCLING FACILITIES, DONATION BOXES AND NON-…
- Chapter 18.200 — CONDITIONAL USE PERMITS
- Chapter 18.204 — VARIANCES
- Chapter 18.208 — ZONE CHANGES AND AMENDMENTS
- Chapter 18.212 — APPEAL PROCEDURES
- Chapter 18.500 — SPECIFIC PLAN NO. 2
- Chapter 18.502 — SPECIFIC PLAN NO. 3
- Chapter 18.504 — SPECIFIC PLAN NO. 4
- Chapter 18.508 — SPECIFIC PLAN NO. 6
- Chapter 18.510 — SPECIFIC PLAN NO. 7
- Chapter 18.512 — SPECIFIC PLAN NO. 8
- Chapter 18.514 — SPECIFIC PLAN NO. 9
- Chapter 18.516 — SPECIFIC PLAN NO. 10
- Chapter 18.518 — SPECIFIC PLAN NO. 11
- Chapter 18.520 — SPECIFIC PLAN NO. 12
- Chapter 18.522 — SPECIFIC PLAN NO. 13
- Chapter 18.526 — SPECIFIC PLAN NO. 16
- Chapter 18.528 — SPECIFIC PLAN NO. 17
- Chapter 18.532 — SPECIFIC PLAN NO. 20
- Chapter 18.534 — SPECIFIC PLAN NO. 21
- Chapter 18.536 — SPECIFIC PLAN NO. 22
- Chapter 18.538 — SPECIFIC PLAN NO. 23
- Chapter 18.540 — SPECIFIC PLAN NO. 24
- Chapter 18.542 — SPECIFIC PLAN NO. 25