Brea — Historic Preservation

Last reviewed: July 1, 2026

Overview

Brea’s Historic Preservation program lives in Title 20 of the Zoning Code, Chapter 20.60, and it governs how identified historic resources are designated, altered, maintained, incentivized, and enforced. These rules apply on top of base Brea Zoning and the city’s Brea Land Use map, and projects are implemented through the city’s plan review and Brea Design Review processes. In practice, Chapter 20.60 creates a formal Brea Historic Resources Register, establishes approval paths for any exterior work, and provides incentives such as Mills Act contracts for qualifying properties (§§ 20.60.010–.040, .060–.070, .120 ).

What is protected and where it applies

• The program applies to any object or improvement listed in the Brea Historic Resources Register (§ 20.60.020; Register created and maintained by the Planning Commission in § 20.60.040) .
• A property can be designated if it meets any of the city’s criteria (e.g., association with significant persons/events, distinctive architectural type, contribution to a historic area) (§ 20.60.030) .
• “Designated historic resources” and “potential historic resources” are defined terms in Brea’s code (§ 20.00.070) .

Brea’s code regulates designated sites citywide rather than by mapped historic overlay districts. A local “historic overlay district” is not established in Chapter 20.60; administration is through the Register and designation procedures (§§ 20.60.020–.060). Not found in retrieved materials.

Designation, removal, and permit freeze

• Anyone may nominate (with owner consent) or request removal of a designation by filing with the Planning Commission; the Commission holds a public hearing following the procedures in § 20.408.030.E and Chapter 20.416 (§ 20.60.050.A–C) .
• While a designation or removal request is pending, the city will not issue any discretionary or ministerial permit that may affect the resource (§ 20.60.050.D) .

Plan Review for exterior work

• Any exterior alteration of a designated resource—including restoration, rehabilitation, remodeling, additions, demolition, relocation, or subdivision—requires plan review under § 20.408.040 (§ 20.60.060.A) .
• The city evaluates consistency with the resource’s distinguishing characteristics using the Secretary of the Interior’s Standards as a guide, plus city performance guidelines for compatibility (§ 20.60.060.B) .
• The Planning Commission must review any major alteration at a public hearing (§ 20.60.060.C) .
• The code defines thresholds: a “major alteration to historic structure(s)” is work costing more than 25% of building valuation; “minor alteration” is work at or below 25% (§ 20.00.070) .

Maintenance, enforcement, and recordation

• Owners must keep designated historic structures in good repair; ordinary maintenance/repair is allowed, but without design/material changes (§ 20.60.090.A–B) .
• If public safety requires alteration/removal and the condition cannot be corrected under the State Historic Building Code, the city may allow the work; replaced features must follow the Secretary’s Standards (§ 20.60.090.B) .
• Violations may require full restoration to pre-violation conditions, in addition to other remedies (§ 20.60.100) .
• To qualify for incentives, the owner must record an instrument disclosing the resource’s designation (§ 20.60.110) .
• Appeals follow Chapter 20.424 (§ 20.60.080) .

Preservation incentives and Mills Act contracts

• The city promotes incentives such as use of the State Historic Building Code, facade easements, reduced/no processing fees, technical assistance, grants/loans, awards, investigation of TDRs, Mills Act eligibility, and assistance with federal tax credits (§ 20.60.070) .
• The Mills Act Contract is voluntary and available to properties listed on the federal, state, and/or city register; it requires Finance Committee recommendation and City Council approval at a public hearing, has an initial 10‑year term with automatic annual renewal, annual owner reporting, city inspection rights, a ten‑year work plan with yearly improvements equal to or greater than the estimated tax savings, and provisions for non‑renewal or cancellation for non‑compliance (§ 20.60.120) .

Interaction with other Brea regulations

• Two‑unit developments under state SB 9 are ineligible on sites within a historic district or on properties listed in the National, State, Orange County, or Brea Historic Resources Registers (§ 20.56.030.C) .
• Density bonus/incentive requests may be denied if they would create a specific, adverse impact on real property listed in the California Register of Historical Resources and there is no feasible way to avoid or mitigate that impact (§ 20.42.100.B.2) .
• Plan review required by Chapter 20.60 is processed within the city’s general Brea Design Review framework (§ 20.60.060.A–C) .
• These preservation requirements apply alongside base zoning and Brea Development Standards. If a property also lies in other Brea Overlay Districts, verify combined applicability. Not found in retrieved materials.

Decision Guide — Actions on Designated Historic Resources

District-by-district notes

• Local Historic Districts or Overlays: Not established in Chapter 20.60; regulation is applied citywide to properties individually listed in the Brea Historic Resources Register (§§ 20.60.020, 20.60.040). Not found in retrieved materials.

Checklist

• Confirm whether the property is a designated resource on the Brea Historic Resources Register (§ 20.60.040) .
• If pursuing designation or removal, obtain owner consent and prepare documentation for Planning Commission hearing (§ 20.60.050.A–C) .
• Before any exterior work, determine if the scope is a “minor” or “major” alteration using the 25% valuation threshold (§ 20.00.070) .
• File for plan review; anticipate a Planning Commission hearing for any “major alteration” (§ 20.60.060.A–C) .
• Design work to align with the Secretary of the Interior’s Standards and the city’s compatibility guidelines (§ 20.60.060.B) .
• If seeking incentives or a Mills Act contract, record the required instrument and prepare a 10‑year work plan (§§ 20.60.110, 20.60.120) .
• Verify SB 9 two‑unit projects are not proposed on or within historic resources/districts (§ 20.56.030.C) .
• Plan for potential appeal timelines under Chapter 20.424 (§ 20.60.080) .

Risks & Ambiguities

Plain-English Summary

Brea protects historic places by putting them on an official Register and requiring special review before you change their exteriors. Small repairs are fine if you don’t change the look, but big changes—or demolitions—go to the Planning Commission. In return, the city offers incentives, including the Mills Act, which can lower property taxes if you commit to a long-term preservation plan.

Source References

• Brea Zoning Code, Chapter 20.60 Historic Preservation: purpose, applicability, criteria, Register, procedures, plan review, incentives, appeals, maintenance, enforcement, recordation, Mills Act (§§ 20.60.010–.120)
• Definitions: “Designated historic resources,” “major/minor alteration to historic structure(s)” (§ 20.00.070)
• Two‑unit developments (SB 9) historic ineligibility (§ 20.56.030.C)
• Density bonus findings—historic resource protection (§ 20.42.100.B.2)
• Brea’s online code host (general access): https://ecode360.com/BR6949

Retrieved passages

• CBC § 20.60.050 (§ 20.60.050.) High relevance show source text
• CBC § 20.60.060 (§ 20.60.060) High relevance show source text
• Brea Zoning Code (§ 20.60.030) High relevance show source text
• Brea Zoning Code (§ 20.60.010.) High relevance show source text
• Brea Zoning Code (Chapter 20.60) High relevance show source text
• CBC § 20.60.100 (chapter does) High relevance show source text
• Brea Zoning Code (§ 20.60.010) High relevance show source text
• Brea Zoning Code (§ 20.00.070) Medium relevance show source text

Cited sections

• Brea Zoning Code, Chapter 20.60 Historic Preservation: purpose, applicability, criteria, Register, procedures, plan review, incentives, appeals, maintenance, enforcement, recordation, Mills Act (§§ 20.60.010–.120) (Chapter 20.60)
• Definitions: “Designated historic resources,” “major/minor alteration to historic structure(s)” (§ 20.00.070) (§ 20.00.070)
• Two‑unit developments (SB 9) historic ineligibility (§ 20.56.030.C) (§ 20.56.030.C)
• Density bonus findings—historic resource protection (§ 20.42.100.B.2) (§ 20.42.100.B.2)
• Brea’s online code host (general access):
• Brea_ZoningCode.md

• Official Brea code library