Division 6.06 — Street Naming and Address Numbering
8.1 (Sign Regulations) of this Development Code, signs installed within the AG Overlay…
Ontario Municipal Code · 2026-09 edition · updated 2026-09-27 · Ontario
comply with the following:
(1) Freestanding Signs. One unlighted single or double faced sign shall
be permitted, not to exceed 6 FT in height and 12 SF in area, for each 60 FT of street frontage, and shall be placed behind the street property line.
(2) Wall Mounted Signs. One wall-mounted sign shall be permitted on
each building elevation facing a street, not to exceed one SF of sign area for each lineal foot of building elevation length, not to exceed 50 SF.
2. EA (Euclid Avenue) Overlay Zoning District.
a. Purpose. The purposes of the EA Overlay zoning district is to recognize and
protect Euclid Avenue as a major scenic and historic resource of the City, and major contributor to Ontario's historic downtown. Furthermore, the EA Overlay zoning district is intended to help identify and safeguard Euclid Avenue's position on the National Register of Historic Places.
b. Applicability. The herein established rights and responsibilities applicable to
the EA Overlay zoning district shall apply to all property located within the boundary of said Overlay District, as shown on the official Zoning Map of the City. The EA Overlay zoning district provisions established herein, shall apply to all existing and new building construction, additions, remodels, or reallocations, whether or not a building permit is required, or other similar entitlement by the City.
c. Development Standards and Guidelines. Land development within the EA
Overlay zoning district shall be designed and constructed pursuant to the standards and guidelines applicable to the underlying base zoning district and the requirements of the Downtown Ontario Design Guidelines (see Reference C—Downtown Ontario Design Guidelines), as applicable.
d. Certificate of Appropriateness Required. A development project within the
EA Overlay zoning district, which requires Development Plan approval pursuant to Section 4.02.025 (Development Plans) of this Development Code, shall require the approval of a Certificate of Appropriateness pursuant to Section 4.02.050 (Historic Preservation—Certificates of Appropriateness and Demolition of Historic Resources).
(Rev. 11.04.2025) Page 6.01-82 Ontario Development Code
Division 6.01—District Standards and Guidelines
e. Medical Offices and Clinics. Medical offices and clinics within the EA
Overlay zoning district, and which are located in the MU-1 zoning district and have street frontage on Euclid Avenue, shall be allowed only on the second floor of a building or above (occupancy of the ground/first floor shall not be allowed). Medical offices and clinics within the EA Overlay zoning district, which are not located in the MU-1 zoning district, or do not have street frontage on Euclid Avenue, may occupy the ground/first floor of a building.
3. ES (Emergency Shelter) Overlay Zoning District.
a. Purpose. The purpose of the ES Overlay zoning district (established pursuant to Section 5.01.010.F.3 (ES (Emergency Shelter) Overlay District) is to accommodate the establishment of emergency shelters, supportive housing, and transitional housing land uses within the City.
b. Applicability.
(1) The herein established rights and responsibilities applicable to the ES
Overlay zoning district shall apply to all property located within the boundary of said Overlay District, as shown on the official Zoning Map of the City. The ES Overlay zoning district provisions established herein, shall apply to all existing and new building construction, additions, remodels, or reallocations, whether or not a building permit is required, or other similar entitlement by the City.
(2) The ES Overlay zoning district shall be located within areas of the
City that are predetermined by the Housing Element, pursuant to GC Section 65583 and contained within the Policy Plan component of The Ontario Plan. Alternate locations may be established by resolution of the City Council, upon recommendation of the Planning Commission.
c. Development Standards and Guidelines. Within the ES Overlay zoning
district, land and improvements thereon shall be designed and developed pursuant to the standards and guidelines of the underlying base zoning district.
4. MTC (Multimodal Transit Center) Overlay Zoning District.
a. Purpose.
(1) The multimodal transit facility anticipated by the Policy Plan
component of The Ontario Plan is generally located south of Interstate 10, north of the railroad tracks, east of Guasti Road and west of Archibald Avenue. The multimodal center will serve as a transit hub for local buses, BRT, the Gold Line, high-speed rail, the proposed Ontario Airport Metro Center circulator, and other future transit modes. Many of these transit modes require extensive capital outlay and years of planning, environmental review, design, and, ultimately, construction. Much of the financing of these facilities is beyond the control of the City, being handled by other local, regional, State and federal agencies. The development of a multimodal facility and related services is a long term endeavor, anticipated to take years, if not decades, to bring to fruition.
(2) The MTC Overlay zoning district (established pursuant to Section
5.01.010.F.4 (MTC (Multimodal Transit Center) Overlay District) of this Development Code) is currently developed with a ±425,000 SF warehouse/distribution building with ancillary offices, and a ±6,000 SF building used as a contractor's office and yard. These buildings are not suited for residential, retail, or office uses as envisioned by the Policy Plan, and use of these facilities in the
Ontario Development Code Page 6.01-83 (Rev. 02.17.2026)
Division 6.01—District Standards and Guidelines
near term would be somewhat limited, until the property is redeveloped as a multimodal transit center. Consequently, the City wishes to authorize the use of the existing buildings for the purpose for which they were previously used.
(3) The purpose of the MTC Overlay zoning district is to allow for the
establishment of warehouse and distribution land uses, on an interim basis, within existing buildings located within the overly district boundary.
b. Applicability.
(1) The herein established rights and responsibilities applicable to the
MTC Overlay zoning district shall apply to all property located within the boundary of said Overlay District, as shown on the official Zoning Map of the City. The MTC Overlay zoning district provisions established herein, shall apply to all existing and new building construction, additions, remodels, or reallocations, whether or not a building permit is required, or other similar entitlement by the City.
(2) Allowed land uses within the MTC Overlay zoning district shall be
limited to warehouse/distribution facilities, ancillary offices, and those temporary land uses allowed within the IG zoning district pursuant to Table 5.02-1 (Land Use Matrix) of this Development Code.
(3) Any expansion of existing buildings or proposals for new building
construction shall require the adoption of a Specific Plan pursuant to Section 4.01.035 (Specific Plans and Amendments) of this Development Code, which prescribes the allowed land uses, development regulations and guidelines, and sign regulations applicable to the project.
(4) The MTC Overlay zoning district shall remain in effect until June 30,
2027, unless otherwise extended pursuant to Section 4.01.020 (Development Code Amendments) of this Development Code, or the existing buildings are removed.
(5) All rights pertaining to the MTC Overlay zoning district established
herein, shall run with the land and shall be transferable to any future owner(s) of property within the MTC Overlay zoning district, and their assigns.
5. ICC (Interim Community Commercial) Overlay Zoning District.
a. Purpose. The purpose of the ICC Overlay zoning district (established
pursuant to Section 5.01.010.F.5 (ICC (Interim Community Commercial) Overlay District) of this Development Code) is to allow for the establishment of Community Commercial land uses, on an interim basis, within existing buildings located within the overlay district boundary.
b. Applicability.
(1) The herein established rights and responsibilities applicable to the ICC Overlay zoning district shall apply to all property located within the boundary of said Overlay District, as shown on the official Zoning Map of the City. The ICC Overlay zoning district provisions established herein, shall apply to all existing and new building construction, additions, remodels, or reallocations, whether or not a building permit is required, or other similar entitlement by the City.
(Rev. 11.04.2025) Page 6.01-84 Ontario Development Code
Division 6.01—District Standards and Guidelines
(2) The ICC Overlay zoning district may be established pursuant to the
requirements of Section 4.01.040 (Zone Changes) of this Development Code, on property containing existing buildings constructed for occupancy by commercial land uses.
(3) The ICC Overlay zoning district shall allow those commercial uses
allowed in the CN and CC zoning districts pursuant to Table 5.02-1 (Land Use Matrix) of this Development Code, while at the same time preserving the City's vision for the development and use of property consistent with the underlying Policy Plan (general plan) land use designation.
c. Expansion of Existing Commercial Structures and Uses.
(1) Within the ICC Overlay zoning district, building expansion, shall only
be allowed for the purpose of expanding an existing, legally established commercial land use, which is allowed pursuant to Subparagraph B.5.b(3) of this Section.
(2) The expansion of an existing commercial building shall be allowed
pursuant to the requirements of Subsection 3.01.020.J (Alteration and/or Expansion of a Nonconforming Nonresidential Structure) of this Development Code and shall be developed consistent with the standards of the CC zoning district.
(3) New Residential Development. New residential development,
which is proposed consistent with the Official Land Use Plan (Exhibit LU-01) of the Policy Plan component of The Ontario Plan, shall first require a zone change to the HDR-45 zoning district pursuant to Section 4.01.040 (Zone Changes) of this Development Code, and full compliance with the land use requirements, and development standards and guidelines of the HDR-45 zoning district.
(4) Protection of ICC Overlay zoning district Land Use and
Development Rights. All land use and development rights granted by the ICC Overlay zoning district shall be transferable to any future owner(s) of property within the ICC Overlay zoning district, and their assigns.
6. AH (Affordable Housing) Overlay Zoning District.
a. Purpose. The purpose of the AH Overlay zoning district is to facilitate housing
opportunities within the community via implementation of required rezone programs pursuant to the City's adopted Housing Element where required for compliance with State Housing Element law.
b. Applicability. The herein established rights and responsibilities applicable to the AH Overlay District shall apply to sites identified in the housing inventory, part of the City's Housing Element, located 1) south of Riverside Drive, 2) along East Holt Boulevard between the Cucamonga Creek Channel and Corona Avenue, and 3) areas designated as MU-8C at the northeast corner of West Holt Boulevard and Mountain Avenue.
c. Definitions. For the purpose of the AH Overlay zoning district, the words or
phrases listed below, in correct alphabetical order, shall have the meanings hereafter specified:
Affordable Housing Project. Affordable housing projects for the purposes of the affordable
housing overlay are defined as follows:
Ontario Development Code Page 6.01-85 (Rev. 02.17.2026)
Division 6.01—District Standards and Guidelines
Tier 1. Any projects with a residential component with at least 20 percent of total units
are designated as affordable to lower incomes via deed restriction or another mechanism to guarantee affordability for a minimum of 30 years.
Tier 2. Any projects with a residential component with at least 25 percent of total units
are designated as affordable to lower incomes via deed restriction or another mechanism to guarantee affordability for a minimum of 30 years.
d. Development Standards. The development standards applicable to
proposed development in the Affordable Housing Overlay District shall be in accordance with the applicable base zone, other overlay zones, and all applicable provisions of the Development Code, unless otherwise indicated herein, or where necessary to comply with Federal and State law.
(1) Minimum Density. Within the AH Overlay zoning district, all new
residential development, regardless of affordability, requires a minimum density of 20 dwelling units per acre. The minimum density shall be calculated as an average over the entire project area on sites south of Riverside Drive.
(2) Affordable Housing Projects. The development of affordable
housing projects within the AH Overlay zoning district shall be allowed by right and are encouraged in accordance with the following provisions:
(a) Tier 1 Affordable Housing Projects. Tier 1 Affordable Housing
Projects on property having a base zoning designation of SP, may be developed as follows:
(i) Medium Density Residential (MDR). Affordable
housing projects on property designated as MDR by the Land Use Plan (Figure LU-01) of the Policy Plan, may be developed pursuant to the requirements of either the SP zoning district or the MDR- 25 zoning district.
(ii) Mixed Use (MU). Affordable housing projects on property designated as MU by the Land Use Plan (Figure LU-01) of the Policy Plan, may be developed pursuant to the requirements of either the SP zoning district or a comparable existing zoning implementation tool that aligns with the density and intensity of the proposed project, except that the maximum density allowed shall be equivalent to the maximum density identified for the applicable Mixed Use area in the Land Use Designations Summary Table (Figure LU-02) of the Policy Plan.
(iii) Calculating Minimum Density. If a project with a
base designation of SP develops without a specific plan, minimum density shall be calculated as an average over the entire portion of the project area that is within the AH Overlay zoning district.
(b) Tier 2 Affordable Housing Projects. Tier 2 Affordable Housing
Projects on property having a base zoning designation of SP, may developed in the same manner as Tier 1 Affordable Housing Projects, with the following additions:
(i) Medium Density Residential. Affordable housing
projects on property designated as MDR by the Land Use Plan (Figure LU-01) of the Policy Plan shall allow a maximum density of 25 to 30 dwelling units per acre.
(Rev. 11.04.2025) Page 6.01-86 Ontario Development Code
Get a plain-English answer with a citation back to this text.
Ask AI about this code▸Contents — Ontario Municipal Code
- Title 1 — GENERAL PROVISIONS
- Title 1 — GENERAL PROVISIONS
- Chapter 1 — CITY COUNCIL
- Chapter 1 — BUSINESS LICENSING REGULATIONS
- Chapter 1 — AMBULANCES (REPEALED)
- Chapter 22 — PROHIBITIONS AGAINST CONSUMPTION OF ALCOHOLIC
- Chapter 22 — PROHIBITIONS AGAINST CONSUMPTION OF ALCOHOLIC BEV…
- Chapter 1 — ADVERTISING DISTRIBUTION
- Chapter 1 — ANIMALS AND FOWL
- Chapter 1 — AIRPORT RULES AND REGULATIONS
- Title 8 — BUILDING REGULATIONS
- Chapter 1 — ADMINISTRATIVE AND BUILDING CODE
- Chapter 1 — DEVELOPMENT CODE
- Chapter 1 — PARKS, PARKWAYS, AND TRAILS
- Division 1.01 — Development Code Enactment, Consistency and Se…
- Division 1.02 — Development Code Interpretation and Enforcement
- Division 2.01 — Planning Agency
- Division 2.03 — Public Hearings
- Division 2.04 — Appeals
- Division 2.05 — City Initiated Modification or Revocation
- Division 2.06 — Performance Guarantees
- Division 3.02 — Nonconforming Signs
- Division 4.01 — Legislative Actions
- Division 4.02 — Discretionary Permits and Actions
- Division 4.03 — Ministerial (Administrative) Permits and Decis…
- Division 5.01 — Zoning Districts and Boundaries
- Division 5.02 — General Land Use Provisions
- Division 5.03 — Supplemental Land Use Regulations
- Division 6.01 — District Standards and Guidelines
- Division 6.03 — Off-Street Parking and Loading
- Division 6.04 — Congestion Management and Trip Reduction
- Division 6.05 — Landscaping
- Division 6.07 — Reserved
- Division 6.08 — Development Projects and Subdivisions
- Division 6.09 — Reserved
- Division 6.10 — Reserved
- Division 6.11 — Shopping Cart Retention and Storage
- Division 7.01 — Historic Preservation
- Division 8.01 — Sign Regulations
- Division 9.01 — Definitions
- Division 9.02 — Glossary
- Division 1.02 — Development Code Interpretation and Enforcement
- Division 1.02 — Development Code Interpretation and Enforcement
- Division 1.02 — Interpretation and Enforcement
- Division 1.02 — Interpretation and Enforcement
- Division 1.02 — Interpretation and Enforcement
- Division 2.05 — City Initiated Modification or Revocation
- Division 2.02 — Application Filing and Processing
- Division 2.05 — City Initiated Modification or Revocation
- Division 2.05 — City Initiated Modification or Revision
- Division 2.05 — City Initiated Modification or Revision
- Division 2.05 — City Initiated Modification or Revision
- Division 2.05 — City Initiated Modification or Revision
- Division 2.05 — City Initiated Modification or Revision
- Division 3.01 — Nonconforming Lots, Land Uses, and Structures
- Division 3.01 — Nonconforming Lots, Land Uses, and Structures
- Division 3.01 — Nonconforming Lots, Land Uses and Structures
- Division 4.03 — Ministerial (Administrative) Permits and Decis…
- Division 4.03 — Ministerial (Administrative) Permits and Decis…
- Division 4.03 — Ministerial Permits and Decisions
- Division 6.02 — Walls, Fences and Obstructions
▸Division 6.06 — Street Naming and Address Numbering
Overview- 5.03 (Standards for Specific Land Uses, Activities, and Facili…
- 25.0 DU/Acre) Zoning District), and Figure 6.01-3D (Example Mu…
- 11.1 to 18.0
- 18.1 to 25.0
- 25.1 to 45.0
- 6.03 (Off-Street Parking and Loading) of this Chapter, excepti…
- 8.1 (Sign Regulations) of this Development Code.
- 6.03 (Off-Street Parking and Loading) of this Development Code.
- 6.03 (Off-Street Parking and Loading) of this Chapter.
- 8.1 (Sign Regulations) of this Development Code, signs install…
- Division 6.02 — Walls, Fences, and Obstructions
- Division 6.06 — Street Naming and Street Address Numbering
- Division 8.01 — General Sign Provisions
- Division 8.01 — General Sign Provisions