Local zoning · Chino Hills

Chino Hills — Historic Preservation

Q: Where are the scenic or ridgeline protections located in the Code?

The Scenic Resources overlay is in § 16.30.010–§ 16.30.030 ; ridgeline and hillside adaptive development standards are in § 16.08.040–§ 16.08.050 (including numeric setbacks and areas where development is restricted) .

Historic Preservation under the Chino Hills local zoning and planning code, with the controlling citations.

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Last reviewed: July 1, 2026

Overview

Chino Hills' Development Code (Title 16) does not contain a standalone historic‑preservation chapter, landmark designation procedure, or a named "historic district" overlay in the retrieved materials. Instead, the Development Code protects visual and natural resources (for example through Scenic Resources (SR) and hillside/ridgeline rules), and applies general review procedures (Site Plan, Planned Development, Conditional Use Permit, zoning clearance) that will affect older buildings and sites. The relevant authorities and standards to watch for are the Scenic Resources Overlay and the hillside/ridgeline protections, the Planned Development (PD) process, and the general application/review and zoning clearance rules that trigger environmental review; these are codified in the Development Code (see § 16.30.010, § 16.08.040, § 16.20.010, and § 16.79.010) .

Note: where the Code is silent on historic‑resource procedures the City may rely on project review (design review, CEQA, PD conditions) or have separate administrative policies that were not included in the retrieved Development Code. Verify with the City for any historic‑resource register, local landmark list, or ordinance not in the materials below.

(First related links used inline below: design review, parking, development standards, overlays, ADUs, Title 24.)

How Chino Hills' Code treats "historic" resources (what exists in the Code)

The Development Code emphasizes preserving scenic and visual resources; the Scenic Resources overlay (SR) is meant to "protect, preserve, and enhance the aesthetic resources of Chino Hills" and can add site‑specific design criteria that will be applied to development proposals in mapped scenic corridors and ridgelines § 16.30.010 and § 16.30.020 .
Ridgeline/knoll protections and hillside adaptive standards restrict development near mapped ridgelines and prominent knolls, which can indirectly protect historic landscapes or older buildings sited on those features § 16.08.040 and § 16.08.050 .
The Planned Development (PD) process allows project‑level flexibility to preserve "value and character" of areas; PD documents are incorporated by reference and may contain site‑specific preservation instructions where a PD was used to approve development § 16.20.010 and § 16.20.020(B) .
The Development Code’s standard administrative review tools — Site Plan, Conditional Use Permit, Minor Use/Minor Exception, and zoning clearance — are the normal triggers for design conditions, mitigation, or CEQA review that can protect historic resources in the absence of a formal local landmark program § 16.76.040, § 16.68.030, § 16.73.040, and § 16.79.010 .
Appendix A (Regulation of Uses by Zoning District) and the district tables set permitted uses and dimensional standards; where a historic property is in a given zone, the usual permitted‑use rules and development standards apply unless a PD or other site‑specific approval says otherwise § 16.04.010 and references to Appendix A .

Because there is no preserved "historic‑resource" chapter in the retrieved files, any local procedures for listing or protecting landmarks are Not found in retrieved materials. Verify with the Community Development Department.

District-by-district (historic preservation relevance)

Below are the specific districts/overlays in the Code that most often intersect with historic‑resource issues. Each subsection summarizes purpose, typical uses, key dimensional/administrative standards (as available in the retrieved materials), and where it commonly applies.

Scenic Resources Overlay — (SR)

Purpose: protect scenic corridors, ridgelines and viewsheds; allows project‑level design criteria to preserve visual resources § 16.30.010 .
Typical permitted uses: underlying zone uses remain; SR imposes additional site‑design and landscaping expectations (no separate new use list in overlay) § 16.30.030 .
Key standards: site design/building placement to blend with landscape; minimize vegetation removal; grading and ridgeline standards apply (see hillside/ridgeline rules) § 16.30.030 and cross‑reference § 16.08.050 .
Where it applies: mapped corridors and ridgelines (Figure 15‑1 referenced in Code) § 16.30.020 .

Hillside / Ridgeline protections (Hillside adaptive standards)

Purpose: preserve unique visual/topographic character; prevent development on exceptionally prominent ridgelines and prominent knolls § 16.08.010 and § 16.08.040 .
Typical effect on historic sites: prevents major new construction on mapped ridgelines and requires clustering/variable setbacks where hillside areas are protected § 16.08.050 .
Key numeric controls: development setbacks from ridgeline crests (examples in Code: 100 ft horizontal + 35 vertical ft for prominent ridgelines; other numeric limits shown in § 16.08.040 and § 16.08.050) .
Where it applies: hillside areas with natural slope ≥15% and mapped tracts (Carbon Canyon, Sleepy Hollow, etc.) § 16.08.020 and figures .

Planned Development — PD

Purpose: flexibly implement integrated, cohesive developments and protect character through project‑level standards; PDs can include preservation or site‑specific design commitments § 16.20.010 and § 16.20.020(B) .
Typical uses: mixed residential, mixed use, or project‑level combinations as set in the PD documents (individual PD documents are incorporated by reference) § 16.20.020(B) .
Key standards: PD-specific documents contain development standards; to know exact setbacks/heights one must consult the applicable PD approval (files in Community Development) § 16.20.020(B) .
Where it applies: sites approved as PDs shown on Official Zoning Map (list of PD projects in § 16.20.020(A)) .

Open Space — OS‑1 / OS‑2 / PP (Public Park)

Purpose: conserve open space, passive and active recreation; structures are limited and when allowed must reflect park character § 16.18.010 .
Typical uses: parks, trails, passive open space; limited buildings for recreation or park operations § 16.18.010 .
Key standards: public buildings within parks have design expectations to reflect park character; private structures in private open space follow corresponding district standards § 16.18.030 (development standards summary) .
Where it applies: City parks and private open space tracts (including mapped Chino Hills State Park shown for information) § 16.04.010 and § 16.18.010 .

Commercial and Institutional Zones (example: C-N, C-O, I-1, I-2)

Purpose: commercial and institutional uses; numeric development standards are in the zone tables (e.g., Table 25‑1 for commercial) Table 25‑1 and § 16.48.060 for equipment siting .
Typical uses: retail, offices, institutional buildings; if a historic commercial building exists, the underlying zone’s allowed uses and any site plan/design review apply.
Key standards: Table 25‑1 lists project size, lot dimensions, max height, landscape requirements, and setbacks for C‑N, C‑O, C‑G, C‑R, C‑F — cite Table 25‑1 for specific numeric standards (commercial example) Table 25‑1 .
Where it applies: properties mapped to those commercial zones per Official Zoning Map § 16.04.010 .

NOTE: The Development Code references Appendix A (Regulation of Uses by Zoning District) for permitted uses; Appendix A contents were Not found in the retrieved materials. For parcel‑specific allowed uses and numeric standards (especially residential setbacks, lot coverage, and floor area ratios), consult the Development Code exhibits or the Community Development Department. Verify with the jurisdiction.

Decision‑relevant quick reference table

Topic / Standard	Short rule or effect in Chino Hills	Code reference
Scenic resources overlay — purpose	Protects/enhances mapped scenic corridors and allows overlay design criteria to preserve views	§ 16.30.010
SR overlay — where applied	Mapped corridors, ridgelines and viewsheds (Figure 15‑1)	§ 16.30.020
Ridgeline/knoll development limits	Exceptionally prominent ridgelines/knolls retained in natural condition; horizontal/vertical setbacks from crests apply	§ 16.08.040 / § 16.08.050
Planned Development flexibility	PD used to preserve area character; PD documents control standards where applied	§ 16.20.010 / § 16.20.020(B)
Zoning clearance (ministerial)	Zoning clearance verifies compliance with permitted uses and development standards; may be denied if nonconforming	§ 16.79.010 / § 16.79.040
Commercial zone dimensional standards	See Table 25‑1 for C‑N/C‑O/C‑G/C‑R/C‑F (setbacks, heights, landscaping)	Table 25‑1 (Exhibit A / Table 25‑1)

Practical guidance (synthesis & next steps)

If you own or are working on an older property in Chino Hills and believe it has historic value, start with a pre‑application meeting with the Community Development Director and ask specifically whether the property appears in any local historic inventory or PD documents; PD files may include site‑specific protections where a development approval covered the property § 16.20.020(B) .
Expect review triggers: Site Plan approval, a Minor Use Permit, Conditional Use Permit, zoning clearance or PD amendment could all be used to require preservation‑friendly conditions or mitigation; those review types and their approval findings are set out across Chapters 16.68, 16.76, 16.78 and 16.79 .
Where a property sits on or near mapped scenic resources or ridgelines, the SR overlay and hillside rules likely override otherwise permitted changes; check § 16.30.030 and § 16.08.040 / § 16.08.050 early in design to avoid costly redesigns .
If you plan an ADU on a house that may be historic, State ADU guidance allows objective design standards to avoid adverse impacts to listed historic resources; Chino Hills’ local ADU rules and how they interact with historic resources were Not found in retrieved materials — consult the City and California ADU law guidance (state resource included in files) .

Inline links (first natural mention of each):

design review — see the City's Chino Hills Design Review expectations as part of Site Plan/PD review.
parking — parking impacts and historic‑site reuse can trigger Chino Hills Parking minimums.
development standards/setbacks — check Chino Hills Development Standards tables (commercial example: Table 25‑1) for numeric controls.
overlays — the Code uses overlays like Chino Hills Overlay Districts (SR, BR, GH) that can affect historic properties.
ADUs — state vs local rules and historic resources intersection: Chino Hills ADUs and California ADU law.
Title 24 / building code — building code requirements live in California Building Standards Code (Note: building code topics are outside the scope of this page).

Checklist — what an applicant must (at minimum) satisfy for a project affecting an older property in Chino Hills

Confirm zoning and overlay status on the Official Zoning Map and whether the parcel lies in SR, GH, BR, or a PD (see § 16.04.010, § 16.30.020) .
Complete a pre‑application meeting with Community Development to determine required review type (zoning clearance, Site Plan, CUP, PD amendment). See review procedures and decision‑makers in Chapter 16.58/Table 100‑1 § 16.58 and Exhibit Table 100‑1 (decision routing) — Not found verbatim in retrieved materials for § number; verify with staff. Verify with the jurisdiction.
If in a hillside or scenic area, apply ridgeline/hillside adaptive standards to plans and submit required graphics showing viewsheds (see § 16.08.050, § 16.30.030) .
Prepare any specialist reports that may be required (e.g., environmental/CEQA review if project increases intensity or modifies a structure in a sensitive area) — CEQA is referenced throughout § 16.02.050 .
Submit applications with plans demonstrating compliance with the zone's development standards and required findings for the requested review (see the applicable chapter for Site Plan, CUP, Minor Use Permit, etc.) § 16.76.060, § 16.68.030, § 16.78.040 .
Expect conditions that mitigate visual/landscape impacts and conform to PD or Design Review requirements; secure final zoning clearance if the use is ministerial § 16.79.040 .

Risks & Ambiguities

Issue	Why it matters	What to verify
No local landmark/historic‑preservation chapter found	Without a local program, protections rely on general review/overlays (SR, PD, Site Plan) rather than a predictable landmark process	Verify with City whether a separate local historic register or resolution exists; ask Community Development for any administrative policies. Not found in retrieved materials.
ADU rules + historic sites	State ADU rules allow objective standards to avoid adverse impacts to listed historic resources, but local ADU specifics were not in the retrieved code files	Verify local ADU ordinance and whether Chino Hills applies objective standards for ADUs on historic properties (state ADU guidance in uploaded materials)
Parcel‑specific PD commitments	PD approvals may contain individualized preservation commitments not in the base Code	Check the specific PD file in Community Development (PD documents are incorporated by reference) § 16.20.020(B)
Which numeric development standards apply?	Residential numeric setbacks/floor area/coverage not reliably found in retrieved snippets	Consult the specific zone chapter, Exhibit A tables, or the Community Development Department. Appendix A contents Not found in retrieved materials. Verify with the jurisdiction.
CEQA / historic findings	Historic resources can trigger CEQA mitigation or studies; the Code references CEQA but does not list procedural historic thresholds	Expect CEQA referral if project may have significant impacts; verify with City Environmental/Planning staff. § 16.02.050

Plain‑English summary

Chino Hills' zoning code does not set up a formal local landmark or historic‑district program in the retrieved materials; instead, preservation tends to happen through the Scenic Resources overlay, hillside/ridgeline protections, Planned Development agreements, and normal project review (Site Plan, CUP, zoning clearance) that can contain conditions to protect older buildings or landscapes. For any specific parcel, check overlay mapping, PD files, and talk to Community Development — verify whether a local historic list or administrative policy applies. See § 16.30.010, § 16.08.040, § 16.20.010, and § 16.79.010 for the primary Code hooks cited above .

Source References

Chino Hills Development Code — general authority, short title, purpose (Title 16 / Development Code): § 16.02.010 through § 16.02.040
Zoning Districts established (list and overlay names including SR, BR, GH, PD): § 16.04.010
Scenic Resources Overlay District purpose & locational requirements: § 16.30.010 and § 16.30.020
Scenic Resources Overlay development standards (site design/landscaping/grading): § 16.30.030
Hillside/ridgeline protection and adaptive standards: § 16.08.040, § 16.08.050, § 16.08.020 (applicability)
Planned Development intent and PD list/incorporation by reference: § 16.20.010 and § 16.20.020(B)
Site Plan, approval findings and process: § 16.76.040 and § 16.76.060
Conditional Use Permit review and findings: § 16.68.010 and § 16.68.030
Minor Use / Minor Exception review standards: § 16.78.040 and § 16.73.040
Zoning clearance purpose and basis for approval: § 16.79.010 and § 16.79.040
Commercial zone development standards (Table 25‑1 as example of numeric standards): Table 25‑1 (Commercial Zone Districts—Development Standards) (Exhibit/Table in Code)
State ADU guidance (on ADUs in historic districts and allowed objective standards): 2025 California ADU handbook (uploaded file)

Sources

Retrieved passages

Chino Hills Zoning Code (§ 9.55.030) Medium relevance
Chino Hills Zoning Code (Chapter 16.68) Medium relevance
Chino Hills Zoning Code (§ 9.140.030) Medium relevance
Chino Hills Zoning Code (chapter are) Medium relevance
Chino Hills Zoning Code (§ 13) Medium relevance
Chino Hills Zoning Code (Section 16.58.020) Medium relevance
Chino Hills Zoning Code (chapter and) Medium relevance
Chino Hills Zoning Code (§ 65915) Medium relevance
Chino Hills Zoning Code (§ 2) Medium relevance
Chino Hills Zoning Code (§ 9.135.040) Medium relevance
Chino Hills Zoning Code (chapter and) Medium relevance

Cited sections

Official Chino Hills code library

Frequently asked questions

Does Chino Hills have a local historic‑landmark program or register?

Not found in retrieved materials. The Development Code provided does not include a dedicated historic‑preservation chapter, local landmark designation process, or a municipal historic register in the sections returned; verify with the City of Chino Hills Community Development Department for any administrative lists or separate ordinances. See the Development Code general provisions § 16.02.010 for how Title 16 works and the list of districts § 16.04.010 .

If my house is old, what rules will most often affect renovation or demolition?

Renovation/demolition projects are normally subject to the zoning rules of the underlying district and any applicable overlays (for example SR or hillside protections). Site Plan, zoning clearance, or a Minor Use/Conditional Use/PD review can impose visual and landscape conditions; check § 16.30.030, § 16.08.040, and the review chapters § 16.76 / § 16.79 .

Can an ADU be built on a property that may be historic in Chino Hills?

State ADU guidance allows ADUs in historic districts but permits local objective standards to prevent adverse impacts to properties listed in the California Register of Historical Resources. Chino Hills’ local ADU rules were Not found in the retrieved Development Code materials — confirm local ADU standards with the City; see state guidance in the uploaded ADU handbook for how historic resources are treated .

Where are the scenic or ridgeline protections located in the Code?

The Scenic Resources overlay is in § 16.30.010–§ 16.30.030; ridgeline and hillside adaptive development standards are in § 16.08.040–§ 16.08.050 (including numeric setbacks and areas where development is restricted) .

If my property is inside a PD, does the base Code or the PD controls apply?

PD approvals are incorporated by reference; where a property is covered by a PD, the PD documents and conditions control and may include special preservation terms. See § 16.20.020(B); inspect the specific PD file in Community Development to know the applicable standards .

Will CEQA likely apply to a project that affects an older building?

The Development Code references CEQA application and that projects subject to CEQA must follow CEQA procedures (§ 16.02.050). If a building has potential historic significance, the environmental review process may require a study and mitigation measures. Verify with City Environmental/Planning staff early in the application process .

What is the quickest administrative path to confirm whether I can alter an older building?

Begin with a zoning clearance (ministerial) or a pre‑application meeting. A zoning clearance confirms whether a proposed change complies with permitted uses and development standards; if the change is not ministerial the Director will route the project to the appropriate discretionary review (Site Plan, CUP, PD amendment). See § 16.79.010 and § 16.79.040 .

Where do I find the parcel‑specific development standards (setbacks, height, coverage)?

Numeric standards are in the zoning district chapters and tables (for commercial, see Table 25‑1). Appendix A controls uses by district. The exact section for a parcel depends on its zoning designation on the Official Zoning Map; consult § 16.04.010 and the applicable district chapter or Exhibit/Table in the Code. Some numeric tables and Appendix A were Not fully available in the retrieved materials — verify with the City .

If a developer proposes demolition of a building I think is historic, what procedural protections exist?

There is no dedicated demolition‑review chapter for historic resources in the retrieved Code. Protections (if any) would be implemented via Site Plan or Discretionary permit conditions, PD commitments, CEQA review, or overlay restrictions (if property sits in SR or another overlay). Verify whether the City has administrative demolition controls or an adopted local preservation policy. Not found in retrieved materials; check with Community Development.

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