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Title 18 — Zoning›Chapter 18.534 — SPECIFIC PLAN NO. 21

Article V — Performance Standards

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

§ 18.534.370. Generally.

All uses established or placed into operation after the effective date of the ordinance codified in this chapter shall comply at all times with the limitations or performance standards contained in this article.

(Ord. 871 § 1 (IV), 1987)

§ 18.534.380. Fire and explosion hazards.

All activities involving flammable or explosive materials, and all storage of such materials shall be provided with adequate safety devices against the hazard of fire and explosion. Adequate fire fighting and fire suppression equipment and devices standard in the industry shall be provided. All incineration is prohibited except as permitted by the air pollution district of the county. (Ord. 871 § 1 (IV), 1987)

§ 18.534.390. Radioactivity and electrical disturbance.

Devices which radiate radio-frequency energy shall be so operated as not to cause interference with any activity carried on beyond the boundary line of the property upon which the device is located. Radio-frequency energy is defined as electro-magnetic energy at any frequency in the radio spectrum between ten kilocycles and three million megacycles. (Ord. 871 § 1 (IV), 1987)

§ 18.534.400. Sound.

Sound related to industrial or manufacturing processes, excluding traffic noise, shall be muffled so as not to become objectionable to intermittence, beat, frequency or shrillness and shall comply with Chapter 8.36 of this code.

(Ord. 871 § 1 (IV), 1987)

§ 18.534.410. Vibration.

Every use shall be so operated that the ground vibration inherently and recurrently generated is not perceptible, without instruments, at any point on any boundary line of the lot on which the use is located.

(Ord. 871 § 1 (IV), 1987)

§ 18.534.420. Smoke, dust, fumes and contaminants.

Industrial or manufacturing processes out of which evolve smoke, dust, fumes, particulate matter, contaminants and specific contaminants shall comply with the lease rules and regulations of the air pollution district of the county.

(Ord. 871 § 1 (IV), 1987)

§ 18.534.430. Odors.

Odors shall not be in such quantities as to be offensive beyond the boundary line of the parcel from which the odors emanate.

(Ord. 871 § 1 (IV), 1987)

§ 18.534.440. Toxic gases.

Toxic gases or other toxic matter shall not be emitted which can cause damage to health, to animals or vegetation, or other forms of property, or which can cause any soiling beyond the boundary line of the parcel on which the use is located.

(Ord. 871 § 1 (IV), 1987)

§ 18.534.450. Emission of heat and glare.

Every use shall be so operated that it does not emit heat or glare in such quantity or degree as to be readily detectable on any boundary line of the lot on which the use is located. (Ord. 871 § 1 (IV), 1987)

§ 18.534.460. Outdoor storage and waste disposal.

All outdoor storage facilities for waste materials and trash shall be enclosed by a solid masonry wall adequate to conceal such facilities from adjacent properties. No material or waste shall be deposited upon a subject lot in such form or manner that they may be transported from the lot by acts of nature.

(Ord. 871 § 1 (IV), 1987)

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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
      Overview
      1. Article III — Property Development Standards
      2. Article IV — General Development Standards
      3. Article V — Performance Standards
      4. Article VI — Streetscape Design Concepts
    70. Chapter 18.536 — SPECIFIC PLAN NO. 22
    71. Chapter 18.538 — SPECIFIC PLAN NO. 23
    72. Chapter 18.540 — SPECIFIC PLAN NO. 24
    73. Chapter 18.542 — SPECIFIC PLAN NO. 25

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