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Title 18 — Zoning›Chapter 18.540 — SPECIFIC PLAN NO. 24

Article III — Property Development Standards—Area I

San Dimas Zoning Code · 2026-06 edition · updated 2026-07-06 · San Dimas

§ 18.540.190. Development standards.

All development shall comply with the following Area I property development standards, as well as with the general property development standards set forth in Article VIII . (Ord. 1150 § 1, 2005)

§ 18.540.200. Minimum lot dimensions.

Minimum lot area width and depth, none required. However, a subdivision request within this area shall be accompanied by an illustrative site plan showing the lots are of sufficient size and shape to adequately support the type of uses permitted in the area in accordance with the development standards of this article.

(Ord. 1150 § 1, 2005)

§ 18.540.210. Building and parking setbacks.

The minimum building setbacks are as follows:

  • A. Along Lone Hill Avenue and Gladstone Street, minimum of twenty-five feet for structures up to twenty feet and forty feet for structures higher than twenty feet. Height limitations set forth in this section do not include minor architectural projections;

  • B. Interior lot lines, none required. (Ord. 1150 § 1, 2005)

§ 18.540.220. Maximum building height.

Maximum building height is thirty-five feet with greater heights subject to review and approval of a conditional use permit.

(Ord. 1150 § 1, 2005)

§ 18.540.230. Landscaping.

The following areas shall be fully landscaped and irrigated, maintained in good appearance and kept in a weed and disease free manner:

  • A. Streets. All setback areas along Gladstone Street and Lone Hill Avenue shall be landscaped and maintained adjacent to public rights-of-way. Parking areas should be screened as much as

possible utilizing berms, shrubs, and other decorative treatments of sufficient size and height to meet this requirement.

  • B. Overall Site. All building sites shall have a minimum landscaped coverage equivalent to ten percent of the total lot area. Such landscaping shall be evenly distributed over the site and consist of an effective combination of trees, ground cover and shrubbery. All areas not utilized for structures, parking or other permitted uses shall be landscaped.

  • C. All interior side and rear yards and setbacks shall be fully landscaped. (Ord. 1150 § 1, 2005)

§ 18.540.240. Signage.

The provisions of Chapter 18.152 of this title shall apply. No signs shall be installed until a master sign program for the project has been approved by the review authority pursuant to Chapter 18.12 of this title.

(Ord. 1150 § 1, 2005; Ord. 1324, 6/10/2025)

§ 18.540.250. Architecture.

  • A. Due to the highly visible location of this site, a common architectural theme is encouraged to provide a high quality product. Structures shall be designed utilizing a western or Early California architecture design and shall be approved by the review authority pursuant to Chapter 18.12 of this title.

  • B. Buildings shall be expected to employ treatments, such as the staggering of planes along exterior walls to create pockets of light and shadow, to break up the mass and provide relief from monotonous, uninterrupted expanses of wall. Other features, such as the use of curved corners and varying roof lines should also be considered as means to dramatically change the appearance and add vitality. Also, in order to improve the appearance of a project from adjacent rights-of-way, the rear elevation of those structures facing the right-of-way should receive special architectural enhancement as well.

  • C. Sensitive alteration of colors and materials should be used to produce diversity and enhance architectural effects. While no category of exterior materials is considered "correct," the use of a particular material should, as a rule, exemplify the special characteristics of the product or be demonstrative of its unique application. Paint, in general, should be considered an enhancement tool but not be considered a replacement for the use of textured surfaces.

  • D. Detailed architectural guidelines shall be prepared for final review and approval by the planning commission prior to the granting of precise plan approvals for any development within Area I-B.

  • (Ord. 1150 § 1, 2005; Ord. 1324, 6/10/2025)

§ 18.540.260. Internal circulation.

  • A. Internal circulation shall be designed so as to provide safe and efficient access to all properties within Area I of the specific plan.

  • B. An intent of Specific Plan No. 24 is to provide a comprehensive development program which encompasses all of the properties that comprise the project area. To fulfill this objective, prior to the approval of any project within Area I-B, a finding shall be made that the project takes into consideration and makes all necessary provisions to accommodate safe and efficient access to all other properties within the area as required to fulfill the intent of the specific plan.

  • C. Internal circulation shall include adequate provision for pedestrian circulation by including walkways, landscaping, benches or seating, trellises or similar amenities.

  • (Ord. 1150 § 1, 2005)

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▸ Contents — San Dimas Zoning Code
San Dimas Zoning Code
  1. ▸ Title 18 — Zoning
    Overview
    1. Chapter 18.04 — GENERAL PROVISIONS
    2. Chapter 18.08 — DEFINITIONS
    3. Chapter 18.12 — DEVELOPMENT PLAN REVIEW
    4. Chapter 18.14 — WATER-EFFICIENT LANDSCAPES
    5. Chapter 18.16 — ZONING DISTRICTS, MAPS AND BOUNDARIES
    6. Chapter 18.20 — RESIDENTIAL ZONES GENERALLY
    7. Chapter 18.22 — DENSITY BONUS
    8. Chapter 18.24 — S-F SINGLE-FAMILY RESIDENTIAL ZONE
    9. Chapter 18.26 — DEVELOPMENT STANDARDS OVERLAY ZONE
    10. Chapter 18.28 — SF-A SINGLE-FAMILY AGRICULTURE ZONE
    11. Chapter 18.32 — SF-H SINGLE-FAMILY HILLSIDE ZONE
    12. Chapter 18.35 — SF-DR SINGLE-FAMILY DOWNTOWN RESIDENTIAL ZONE
    13. Chapter 18.38 — ACCESSORY DWELLING UNITS
    14. Chapter 18.40 — AFFORDABLE HOUSING OVERLAY ZONE
    15. Chapter 18.42 — MULTIPLE-FAMILY (MF) ZONE
    16. Chapter 18.44 — MULTIPLE-FAMILY THIRTY UNITS PER ACRE (MF-30) …
    17. Chapter 18.48 — MF-D MULTIPLE-FAMILY ZONE— DUPLEX
    18. Chapter 18.50 — DOWNTOWN SPECIFIC PLAN
    19. Chapter 18.52 — RPD RESIDENTIAL PLANNED DEVELOPMENT ZONE
    20. Chapter 18.64 — A-L LIGHT AGRICULTURAL ZONE
    21. Chapter 18.92 — C-H COMMERCIAL-HIGHWAY ZONE
    22. Chapter 18.96 — C-N COMMERCIAL-NEIGHBORHOOD ZONE
    23. Chapter 18.104 — CPO COMMUNITY PARKING OVERLAY ZONE
    24. Chapter 18.108 — SCENIC HIGHWAY OVERLAY ZONE
    25. Chapter 18.112 — P-H PRIVATE HORSE OVERLAY ZONE
    26. Chapter 18.116 — CONSERVATION OVERLAY ZONE
    27. Chapter 18.122 — MOBILE HOME PARK ZONE
    28. Chapter 18.124 — OS OPEN SPACE ZONE
    29. Chapter 18.128 — INDUSTRIAL ZONES
    30. Chapter 18.132 — PS PUBLIC/SEMIPUBLIC ZONE
    31. Chapter 18.136 — A-P ADMINISTRATIVE PROFESSIONAL ZONE
    32. Chapter 18.140 — C-G CREATIVE-GROWTH ZONE
    33. Chapter 18.142 — DEVELOPMENT STANDARDS FOR SPECIFIC LAND USES
    34. Chapter 18.150 — WIRELESS COMMUNICATION FACILITIES
    35. Chapter 18.152 — SIGNS
    36. Chapter 18.156 — VEHICLE PARKING AND STORAGE
    37. Chapter 18.162 — TREE PRESERVATION
    38. Chapter 18.164 — HILLSIDE DEVELOPMENT
    39. Chapter 18.168 — ALTERNATIVE ENERGY SYSTEMS
    40. Chapter 18.170 — ELECTRIC VEHICLE CHARGING STATIONS
    41. Chapter 18.172 — PUBLICLY OWNED PROPERTY
    42. Chapter 18.180 — FLOOD CONTROL
    43. Chapter 18.184 — HOME BASED BUSINESSES
    44. Chapter 18.186 — RESERVED
    45. Chapter 18.188 — RESERVED
    46. Chapter 18.190 — SEXUALLY ORIENTED BUSINESSES
    47. Chapter 18.192 — UNCLASSIFIED USES
    48. Chapter 18.194 — MARIJUANA AND MEDICAL MARIJUANA
    49. Chapter 18.196 — TEMPORARY USES
    50. Chapter 18.198 — RECYCLING FACILITIES, DONATION BOXES AND NON-…
    51. Chapter 18.200 — CONDITIONAL USE PERMITS
    52. Chapter 18.204 — VARIANCES
    53. Chapter 18.208 — ZONE CHANGES AND AMENDMENTS
    54. Chapter 18.212 — APPEAL PROCEDURES
    55. Chapter 18.500 — SPECIFIC PLAN NO. 2
    56. Chapter 18.502 — SPECIFIC PLAN NO. 3
    57. Chapter 18.504 — SPECIFIC PLAN NO. 4
    58. Chapter 18.508 — SPECIFIC PLAN NO. 6
    59. Chapter 18.510 — SPECIFIC PLAN NO. 7
    60. Chapter 18.512 — SPECIFIC PLAN NO. 8
    61. Chapter 18.514 — SPECIFIC PLAN NO. 9
    62. Chapter 18.516 — SPECIFIC PLAN NO. 10
    63. Chapter 18.518 — SPECIFIC PLAN NO. 11
    64. Chapter 18.520 — SPECIFIC PLAN NO. 12
    65. Chapter 18.522 — SPECIFIC PLAN NO. 13
    66. Chapter 18.526 — SPECIFIC PLAN NO. 16
    67. Chapter 18.528 — SPECIFIC PLAN NO. 17
    68. Chapter 18.532 — SPECIFIC PLAN NO. 20
    69. Chapter 18.534 — SPECIFIC PLAN NO. 21
    70. Chapter 18.536 — SPECIFIC PLAN NO. 22
    71. Chapter 18.538 — SPECIFIC PLAN NO. 23
    72. ▸ Chapter 18.540 — SPECIFIC PLAN NO. 24
      Overview
      1. Article II — Land Use Development Plan—Area I—Regional Commerc…
      2. Article III — Property Development Standards—Area I
      3. Article IV — Land Use Development Plan—Area II—Light Industrial
      4. Article V — Property Development Standards—Area II
      5. Article VI — Land Use Development Plan—Area III—Light Industrial
      6. Article VII — Property Development Standards—Area III
      7. Article VIII — General Development Standards
      8. Article IX — Plan Review and Disposition
    73. Chapter 18.542 — SPECIFIC PLAN NO. 25

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