Local zoning · Morgan Hill

Morgan Hill — Historic Preservation

Historic Preservation under the Morgan Hill local zoning and planning code, with the controlling citations.

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Last reviewed: July 2, 2026

Overview

Morgan Hill’s historic-preservation rules are codified in the zoning code (Title 18) as Chapter 18.60 — Historic Resources. The chapter establishes how the city identifies, evaluates, designates, and regulates changes to potentially significant, significant, and designated historical resources across all zoning districts, and ties review to the Secretary of the Interior’s Standards and CEQA where applicable. See the ordinance purpose and applicability in § 18.60.010.

Notes on navigation: design-related approvals for historic properties commonly touch the city’s design-review process, parking rules, overlay zoning, ADU rules, and development standards — read those pages while preparing applications: Morgan Hill Design Review, Morgan Hill Parking, Morgan Hill Overlay Districts, Morgan Hill ADUs, and Morgan Hill Development Standards. The state building code interaction is described below — see California Building Standards Code.

What the code requires (citywide rules)

  • Applicability and purpose: Chapter 18.60 applies to all potentially significant, significant, and designated historical resources in Morgan Hill and sets the city’s preservation objectives — see § 18.60.010.
  • Definitions: key terms (for example “Age” = 45 years, “Historic district”, “Character‑defining features”, and “Standards” = Secretary of the Interior’s Standards) are defined in § 18.60.020 and used throughout the chapter.
  • Identification / surveys: the city maintains a reconnaissance survey, an adopted survey list, and a local register; the 2008 reconnaissance survey and rules for new evaluations are spelled out in § 18.60.030.
  • Designation: the planning commission places resources or districts on the local register following the procedure in § 18.60.040; while designation proceedings are pending, permits to alter/demolish the subject resource are held (no building alteration/demolition permits while a designation hearing is pending). § 18.60.040.C.
  • Adopted survey list: the city council may place resources on the adopted survey list per § 18.60.050; resources on that list are treated as significant for purposes of review.
  • Historical Alteration Permits: altering character-defining exterior features of a potentially significant/significant/designated resource or a contributing resource in a historic district requires a Historical Alteration Permit under § 18.60.070 (minor vs. major; valuation threshold of $10,000 to distinguish minor/major, subject to the director’s discretion). Projects are reviewed for compliance with the Secretary’s Standards. § 18.60.070.B.2–3.
  • Demolition/Relocation Permits: demolition or relocation of listed or significant resources requires a Historical Resource Demolition or Relocation Permit and planning commission approval (no building permit may be issued until the demolition/relocation permit is approved). See § 18.60.080.A–B.
  • CEQA tie-ins: if the proposed alteration/demolition complies with the Secretary of the Interior’s Standards it is generally considered less-than-significant for CEQA; otherwise CEQA review is required — prescribed in § 18.60.070.B.4 and § 18.60.080.B.3.
  • Procedural authorities, hearings, and appeals: the community development director handles evaluations and many alteration permit decisions; the planning commission handles designations and demolition/relocation permit hearings; planning commission decisions are appealable to the city council per the code (see cross-references in § 18.60.040, § 18.60.070, § 18.60.080).
  • Enforcement and remedies: the community development director and building official can require removal of violations, seek injunctive relief, and require restoration; see § 18.60.120.
  • Incentives and special programs: the city may waive/reduce permit fees, establish funding programs, participate in Mills Act agreements, use Marks Act financing, accept historic easements, and allow use of the California Historical Building Code for designated resources — see § 18.60.130.

District-by-district practical breakdown (where preservation rules intersect zoning)

Morgan Hill’s preservation chapter applies citywide, but review and practical consequences vary by the property’s zoning district. Below are the most decision-relevant districts/types in Morgan Hill and how preservation review typically fits with each. Citations below identify the zoning district text and the historic-resources chapter where noted.

Downtown Mixed Use — MU‑D

  • Purpose: preserve and enhance Downtown as Morgan Hill’s core; supports active storefronts and mixed uses. § 18.22.010.
  • Typical permitted uses: ground-floor retail, restaurants, upper-story residential, offices (see MU-D land‑use standards). § 18.22.010 and the MU land‑use tables.
  • Key dimensional standards: downtown form-based controls and downtown-specific building types prevail (see form-based districts and Table 18.29-1 for applicable heights/stepbacks when the FBC applies). Chapter 18.29; typical form-based heights for central districts appear in Table 18.29-1 (FB-based heights to 35–55 ft. depending on district).
  • Historic-preservation interaction: Downtown resources designated under § 18.60 require Historic Alteration Permits for exterior changes and demolition review under § 18.60.070 and § 18.60.080; Downtown projects must coordinate design permit review with the historic review process (see design review page and § 18.60.070).
  • Where it applies: downtown zoning map; check city map for MU‑D parcels. Verify parcel-specific constraints with the planning division. Verify with the jurisdiction.

Neighborhood Mixed Use — MU‑N

  • Purpose & uses: transition district linking downtown to neighborhoods; residential and neighborhood-serving commercial uses. § 18.22.010.
  • Dimensional basics: lower heights/scale than MU‑D; where MU–N projects abut residences they must meet residential‑transition standards in § 18.92.130. § 18.22.010 + § 18.92.130.
  • Historic impact: exterior changes to historic buildings require Historical Alteration Permits under § 18.60.070 and design review; demolition triggers § 18.60.080.

Form‑Based Zoning Districts — FB‑N, FB‑C, FB‑UG

  • Purpose: form-based code to create walkable places; specifics in Chapter 18.29 and Table 18.29-1 (heights: FB‑N up to 35 ft, FB‑C up to 45 ft, FB‑UG up to 55 ft as summary guidance). § 18.29.030 and Table 18.29-1.
  • Typical uses: mixed use—residential and commercial—subject to land‑use tables in 18.29.070.
  • Historic-preservation fit: projects in the FBC area that affect designated or potentially significant resources still follow § 18.60 (evaluations, alteration permits, Secretary’s Standards). The FBC cross-references parking and sign rules that may be adjusted for historic sites; consult the FBC supplemental standards and parking chapter when preparing submittals. § 18.29.080; see cross‑refs to parking and Chapter 18.72.

Planned Development Combining District — PD

  • Purpose: allow tailored development standards and uses through a PD master plan. § 18.30.050.
  • Typical permitted uses/dimensions: established by the approved PD master plan; PD can modify setbacks, height, parking and allow conditional uses beyond the base zone. § 18.30.050.D.
  • Historic-preservation fit: owners of designated historical resources may apply for a PD overlay to accommodate compatible uses or alternate standards for a resource as an incentive; see § 18.60.130.F (Planned Development Overlay option) and PD rules.

Residential Detached Low/Medium/High — RDL / RDM / RDH (formerly R‑1 variants)

  • Purpose & uses: single‑family and detached residential types; equivalents map from old R‑1 districts appears in Table 18.04‑1. Table 18.04‑1 and residential district tables (e.g., lot area, setbacks, height — see residential standards).
  • Key dimensional examples: multi-family/residential district height limits commonly capped at 3 stories or 40 ft for certain attached residential districts (see Table entries for RAM/RAH), rear/front/setback minima are found in Chapter 18.18 and development standards tables (see Table examples). § 18.18 / 18.56 tables.
  • Historic-preservation fit: owner-initiated permits for exterior changes require Historical Alteration Permit when character-defining features are affected; the standard valuation breakpoint is $10,000 for minor vs major permit per § 18.60.070.B.2.

Quick reference table — decision‑relevant preservation standards

Topic Rule or outcome Code reference
Age threshold for “historical” evaluation 45 years is the age criterion used by the code § 18.60.020(2)
Designation procedure Planning commission hears designation requests; permits held while hearings pending § 18.60.040
Historic Alteration Permit required when Exterior character‑defining features of a potentially/significant/designated resource are altered (minor vs major; $10,000 valuation threshold) § 18.60.070
Demolition or relocation Must obtain Historical Resource Demolition or Relocation Permit; planning commission approval; CEQA triggered if not consistent with Secretary’s Standards § 18.60.080
CEQA & Secretary’s Standards Compliance with the Secretary’s Standards → project typically considered less than significant under CEQA; non‑compliance → CEQA review required § 18.60.070.B.4; § 18.60.080.B.3
Incentives (Mills Act, fee waivers, historic building code) City may offer Mills Act agreements, fee waivers, funding programs, and allow California Historical Building Code use § 18.60.130

Checklist — what an applicant must satisfy for a project affecting a historic resource

  • Determine whether the property is on the local register, the adopted survey list, or identified as potentially significant under the city survey program (check records maintained by the city). § 18.60.030.
  • If no current evaluation, commission a qualified historic consultant and submit a DPR 523 series evaluation using the Morgan Hill Historic Context Statement per § 18.60.030.B. § 18.60.030.B.
  • If an alteration to character‑defining exterior features is proposed, prepare and apply for a Historical Alteration Permit (determine minor vs major per § 18.60.070.B.2–3) and provide materials requested by the community development director. § 18.60.070.
  • If demolition or relocation is proposed, submit a Historical Resource Demolition or Relocation Permit application and expect planning commission review; do not obtain building/demolition permits until the planning commission decision. § 18.60.080.A–B.
  • Demonstrate compliance with the Secretary of the Interior’s Standards for the Treatment of Historic Properties; if not demonstrable, include CEQA analysis as required. § 18.60.070.B.3–4.
  • Be prepared for public notice and hearings (notice per § 18.104.090) and for possible deposit to fund city historic consultant peer review. § 18.60.040.D; § 18.60.070.B.3.
  • Coordinate required design permits and parking decisions where applicable (see design review and parking). Verify whether a PD overlay is feasible to adjust development standards if needed (§ 18.30.050 and § 18.60.130.F).

Risks & Ambiguities

Issue Why it matters What to verify
Is my property already designated or on adopted survey list? Designation changes procedural requirements (mandatory hearings, permit holds) and subjects projects to Chapter 18.60 rules. Confirm local register/adopted survey list status with planning; records referenced in § 18.60.030.B. Verify with the jurisdiction.
Whether a proposed change is “alteration of character‑defining features” If yes, a Historical Alteration Permit is required; interpretation is fact‑specific. Obtain a professional evaluation/DPR forms and get an early director determination under § 18.60.070. Verify with the jurisdiction.
How CEQA will apply Non‑compliance with Secretary’s Standards can trigger project‑level CEQA review and delay. Show compliance with Secretary’s Standards to qualify for less‑than‑significant treatment per § 18.60.070.B.4 and § 18.60.080.B.3. Consult environmental staff early.
ADUs and historic properties ADUs are allowed under state law, but a historic exterior change could trigger historic review. Check Chapter 18.84 for ADU rules and coordinate with historic evaluation; local ADU rules are referenced in form‑based notes. Verify with the jurisdiction. Not fully detailed in retrieved materials.
Eligibility for California Historical Building Code May allow alternatives to Title 24 standards for safety vs preservation balance. The code states historical resources may use the California Historical Building Code per § 18.60.130.F — confirm building‑permit routing with building official and see California Building Standards Code.
Parcel‑specific overlays or PD relief PD overlay can allow alternate standards but requires a rezoning/master plan. PD procedure and findings are in § 18.30.050; use only when justified and expect a public hearing.

Plain‑English summary

If your Morgan Hill property is 45+ years old or listed on the city’s survey/register and you want to change its exterior, move it, or tear it down you will normally need a historic evaluation and either a Historical Alteration Permit or a Demolition/Relocation Permit reviewed under Chapter 18.60; the city expects work to follow the Secretary of the Interior’s Standards and will require CEQA review if it does not.

Information Gaps

  • The uploaded materials describe procedures and definitions but do not publish the current list of properties on Morgan Hill’s local register or adopted survey list in the provided files. Not found in retrieved materials.
  • The text of § 18.60.060 (possible waivers/exemptions referenced elsewhere) was not available in the returned excerpts; references to waivers appear but exact language and criteria for waiver are Not found in retrieved materials.
  • Fee schedules, current application forms, and the city’s adopted Morgan Hill Historic Context Statement (full document) are not included in the provided files. Not found in retrieved materials.

Source References

  • Morgan Hill Municipal Code, Title 18 — Chapter 18.60 (Historic Resources): § 18.60.010–§ 18.60.130 (purpose, definitions, identification, designation, alteration permits, demolition/relocation permits, enforcement, incentives).
  • Form‑Based Zoning Districts and Table 18.29‑1 (FB‑N / FB‑C / FB‑UG heights and use summaries): § 18.29.030 and Table 18.29‑1.
  • Mixed‑Use Districts (Downtown MU‑D, Neighborhood MU‑N): § 18.22.010.
  • Planned Development Combining District: § 18.30.050 (PD master plan, deviations, design review).
  • Residential development tables and representative development standards (RDL/RDM/RDH and attached district entries): development standards tables in Chapter 18.18 and Tables shown in the zoning code excerpts.
  • Cross‑references for appeals, notices, and common permit requirements: Chapter 18.104 (notice) and Chapter 18.112 (appeals) referenced within Chapter 18.60.

Sources

Retrieved passages

  • Morgan Hill Zoning Code (§ 5) High relevance
  • Morgan Hill Zoning Code (§ 5) High relevance
  • Morgan Hill Zoning Code (Section 18.60.040) High relevance
  • Morgan Hill Zoning Code (chapter upon) High relevance
  • Morgan Hill Zoning Code (Chapter 18.112) High relevance
  • CBC § 5 (Section 18.30.050.) High relevance
  • Morgan Hill Zoning Code (chapter is) High relevance
  • Morgan Hill Zoning Code (§ 5) High relevance
  • Morgan Hill Zoning Code (chapter for) Medium relevance
  • Morgan Hill Zoning Code (chapter and) Medium relevance
  • Morgan Hill Zoning Code (section shall) Medium relevance
  • Morgan Hill Zoning Code (§ 5) Medium relevance
  • Morgan Hill Zoning Code (§ 5) Medium relevance
  • CBC § 5 (Section 18.30.050.) Medium relevance
  • Morgan Hill Zoning Code (§ 5) Medium relevance
  • Morgan Hill Zoning Code (§ 3) Medium relevance
  • Morgan Hill Zoning Code (§ 5) Medium relevance
  • Morgan Hill Zoning Code (Title 18) Medium relevance
  • Morgan Hill Zoning Code (Section 53091) Medium relevance

Cited sections

Frequently asked questions

Do I need a permit to change the exterior of a 60‑year‑old house in Morgan Hill?

Yes — if the house is a potentially significant, significant, or designated historical resource (45+ years and with integrity) altering character‑defining exterior features requires a Historical Alteration Permit; see § 18.60.070 for the application, minor/major thresholds (valuation $10,000), and Secretary of the Interior’s Standards review.

What happens if I apply to demolish a building that might be historic?

You must obtain a Historical Resource Demolition or Relocation Permit and the planning commission reviews the request at a public hearing; the city will not issue demolition permits while designation hearings or appeals are pending. See § 18.60.080 and § 18.60.040.C.

How does Morgan Hill determine whether a property is historically significant?

The city uses reconnaissance surveys, DPR 523 evaluation forms, and the adopted Morgan Hill Historic Context Statement to assess age (45+ years), integrity, and significance; see identification rules in § 18.60.030 and definitions in § 18.60.020.

If I follow the Secretary of the Interior’s Standards, will I avoid CEQA review?

If a proposed alteration or demolition complies with the Secretary of the Interior’s Standards, the code treats the potential impact on historic resources as less than significant for CEQA purposes; if it does not comply, CEQA review is required per § 18.60.070.B.4 and § 18.60.080.B.3.

Can I get financial help or tax relief for restoring a designated resource?

Possibly — the city may offer fee waivers/reductions, establish a historic‑preservation funding program, participate in Mills Act contracts, adopt Marks Act provisions, or accept historic easements; refer to § 18.60.130 and consult the city for current programs.

Does the historic chapter change allowed uses or setbacks in my zoning district?

Chapter 18.60 does not itself set new use or setback tables — those are in each zoning district (for example § 18.22.010, § 18.29.030, the commercial and residential development tables). However, designated resources may be eligible for a Planned Development overlay to adjust standards per § 18.60.130.F and § 18.30.050. Verify parcel specifics with planning.

Can I add an ADU to a house that is in a historic district?

ADUs are allowed in many zones, and state ADU law applies; where an ADU would alter character‑defining features or the exterior appearance of a historic resource it will be subject to historic review under § 18.60.070. See Chapter 18.84 for ADU rules and coordinate early with historic staff. Not all ADU/historic interactions are fully detailed in the retrieved materials — verify with the jurisdiction.

What if my project proposal was evaluated five years ago — do I need a new evaluation?

The city may require a new evaluation if the existing survey/evaluation is over five years old or if the resource’s condition or setting has substantially changed, per § 18.60.030.B.

Who makes the final decision on a demolition of a historic resource?

The planning commission makes the initial decision on demolition/relocation permits; planning commission approvals or denials can be appealed to the city council in accordance with the appeals chapter as referenced in § 18.60.080.

If I restore according to Secretary standards, can I use a different building‑code path?

Designated historical resources may be eligible to use the California Historical Building Code (alternate compliance paths to Title 24); the ordinance references this incentive in § 18.60.130.F — coordination with the building official is required.

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