Division 7.01 — Historic Preservation

Ontario Zoning Code · 2026-06 edition · ingested 2026-07-06 · Ontario

7.01.000: Purpose ...................................................................................................................... 7.01-1
7.01.005: Applicability ............................................................................................................... 7.01-2
7.01.010: The Ontario Register of Historic Resources ............................................................. 7.01-2
7.01.015: Historic Rehabilitation Financing Program ............................................................. 7.01-3
7.01.020: California Historical Building Code (CHBC) ........................................................... 7.01-4
7.01.025: Incentives for Historic Preservation ......................................................................... 7.01-4
7.01.030: Historic Preservation Mitigation Fee ........................................................................ 7.01-6
7.01.035: Historic Preservation Trust Fund ............................................................................... 7.01-7
7.01.040: Preservation Easements ......................................................................................... 7.01-10
7.01.045: Owner’s Duty to Keep and Historic Resource in Good Repair ......................... 7.01-10

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7.01.050: Ordinary Maintenance Repair .............................................................................. 7.01-11
7.01.055: Unsafe or Dangerous Conditions .......................................................................... 7.01-11
7.01.060: Enforcement and Penalties ................................................................................... 7.01-12
7.01.065: Guidelines for the Treatment of Historic Properties ............................................. 7.01-13
CHAPTER 8.0: SIGN REGULATIONS
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Division 8.01—Sign Regulations
8.01.000: Purpose ...................................................................................................................... 8.01-1
8.01.005: Applicability ............................................................................................................... 8.01-2
8.01.010: Exempt Signs .............................................................................................................. 8.01-2
8.01.015: Prohibited Signs ......................................................................................................... 8.01-3
8.01.020: Sign Standards........................................................................................................... 8.01-5
8.01.025: Design Guidelines ................................................................................................... 8.01-34
CHAPTER 9.0: DEFINITIONS AND GLOSSARY
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Division 9.01—Definitions
9.01.000: Purpose ...................................................................................................................... 9.01-1
9.01.005: Applicability ............................................................................................................... 9.01-1
9.01.010: Terms and Phrases .................................................................................................... 9.01-1
9.01.015: Acronyms and Abbreviations................................................................................ 9.01-49
Division 9.02—Glossary
9.01.000: Purpose ...................................................................................................................... 9.02-1
9.01.005: Applicability ............................................................................................................... 9.02-1
9.01.010: Glossary of Terms and Phrases ................................................................................ 9.02-1

REFERENCES

Reference A—Style and Format Principles .......................................................................................... A-1 Reference B—Architectural Styles ......................................................................................................... B-1 Reference C—Downtown Ontario Design Guidelines ........................................................................ C-1 Reference D—Residential Design Guidelines ...................................................................................... D-1 Reference E—Commercial Design Guidelines .................................................................................... E-1 Reference F—Industrial Design Guidelines ........................................................................................... F-1 Reference G—Landscape Design and Construction Guidelines ...................................................... G-1 Reference H—Community Climate Action Plan ................................................................................. H-1 Reference I—Chino Airport Land Use Compatibility Plan .................................................................... I-1 Reference J—Objective Development & Design Standards .............................................................. J-1

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LIST OF TABLES
Table 2.02-1: Review Matrix ............................................................................................................ 2.02-1
Table 2.03-1: Notification Matrix..................................................................................................... 2.03-1
Table 3.02-1: Amortization Period of Certain Classifications of Nonconforming Signs ............ 3.02-4
Table 5.02-1: Land Use Matrix ......................................................................................................... 5.02-5
Table 5.03-1: Development Standards for Detached Accessory Residential Structures ...... 5.03-16
Table 5.03-2: Minimum Lighting Requirements for Adult-Oriented Businesses ....................... 5.03-29
Table 5.03-3: Minimum Mobile Home Building Separation Requirements .............................. 5.03-96
Table 5.03-4: Small Collection Facility Maximum Parking Reduction .................................... 5.03-102
Table 5.03-5: Maximum Animal Keeping Densities as an Accessory Use ............................. 5.03-135
Table 5.03-6: Maximum Animal Keeping Densities for Animal Production ........................... 5.03-139
Table 5.03-7: Minimum Number of Work/Live Units to be Equipped with a Shower Adaptable for
ADA Compliance ................................................................................................. 5.03-160
Table 6.01-1: Traditional Single-Family Residential Development Standards ........................... 6.01-5
Table 6.01-2A: Small Lot Traditional Single-Family Development Standards ............................. 6.01-10
Table 6.01-2B: Small Lot Alley-Loaded Single-Family Development Standards ....................... 6.01-14
Table 6.01-2C: Cluster Single-Family Development Standards ................................................... 6.01-18
Table 6.01-3: Multiple-Family Residential Development Standards ......................................... 6.01-22
Table 6.01-4: Minimum Open Space Requirements for Multiple-Family and Mixed-Use
Development Projects ........................................................................................... 6.01-31
Table 6.01-5A: Minimum Requirements for Common Recreation Amenities ............................ 6.01-32
Table 6.01-5B: Minimum Requirements for Common Recreation Areas – Ontario Ranch ..... 6.01-33
Table 6.01-6: Minimum Requirements for Floor Plan and Exterior Elevation Variation for Single-
Family Dwellings ...................................................................................................... 6.01-33
Table 6.01-7: Maximum Single-Family Residential Drive Approach Widths ............................ 6.01-37
Table 6.01-8: Commercial Zoning District Development Standards ........................................ 6.01-50
Table 6.01-9: Acceptable Exterior Building Finishes ................................................................... 6.01-54
Table 6.01-10: Industrial Zoning District Development Standards .............................................. 6.01-63
Table 6.01-11: Animal Types and Maximum Densities ................................................................. 6.01-75
Table 6.01-12: AG (Agricultural) Overlay District Development Standards .............................. 6.01-79
Table 6.02-1: Maximum Height of Interior Side and Rear Property Line Walls and Fences..... 6.02-6
Table 6.02-2: Maximum Height of Walls or Fences within Front and Street Side Setback Areas
.................................................................................................................................... 6.02-7
Table 6.03-1: Off-Street Parking Requirements ............................................................................. 6.03-4
Table 6.03-2: Standards for Parking Spaces, Drive Aisles, and Driveways .............................. 6.03-13
Table 6.03-3: Dimensions for Parking Facilities ............................................................................ 6.03-14
Table 6.05-1: Minimum Tree Size Mix ............................................................................................ 6.05-20
Table 6.05-2: Minimum Tree Species Mix ..................................................................................... 6.05-20
Table 6.05-3: Minimum Tree Size Specifications ......................................................................... 6.05-20
Table 6.05-4: Minimum Tree Setback/Separations .................................................................... 6.05-21
Table 8.01-1: Sign Regulation Matrix .............................................................................................. 8.01-7

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LIST OF FIGURES

Figure 5.01-1: MU-1(Downtown Mixed Use) Zoning District Land Use Areas Map .................... 5.01-5
Figure 5.01-2: MU-1 (Downtown Mixed Use) Zoning District Land Use Map .............................. 5.01-6
Figure 5.03-1: Ontario Toyota Arena entertainment Zone ......................................................... 5.03.50
Figure 5.03-2 Drive-Thru Facilities Street-Oriented Example Site Plan ...................................... 5.03-65
Figure 6.01-1A: Example Development—Traditional Single-Family Residential ........................... 6.01-8
Figure 6.01-1B: Example Development—Traditional Single-Family Residential with Public Alley
Access ........................................................................................................................ 6.01-9
Figure 6.01-2A: Example Development—Small Lot Traditional Single-Family Residential ......... 6.01-13
Figure 6.01-2B: Example Development—Small Lot Alley-Loaded Single-Family Residential Example
.................................................................................................................................. 6.01-17
Figure 6.01-2C: Example Development—Cluster Single-Family Residential ............................... 6.01-21
Figure 6.01-3A: Example Multiple-Family Development — MDR-11 (5.1 to 11.0 DU/Acre) Zoning
District ....................................................................................................................... 6.01-25
Figure 6.01-3B: Example Multiple-Family Development — MDR-18 (11.1 to 18.0 DU/Acre) Zoning
District ....................................................................................................................... 6.01-26
Figure 6.01-3C: Example Multiple-Family Development — MDR-25 (18.1 to 25.0 DU/Acre) Zoning
District ....................................................................................................................... 6.01-27
Figure 6.01-3D: Example Multiple-Family Development — HDR-45 (25.1 to 45.0 DU/Acre) Zoning
District ....................................................................................................................... 6.01-28
Figure 6.01-4: Equestrian Trail Step-Through Entry Design .......................................................... 6.01-38
Figure 6.01-5: Equestrian Trail Steel Barrier Gate Entry Design ................................................... 6.01-39
Figure 6.02-1: Tiered Retaining Wall Design Concept .................................................................. 6.02-4
Figure 6.03-1: Garage/Carport Entrance Clear Area ................................................................ 6.03-15

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