Brea Zoning, Planning & Building Codes

Last reviewed: July 1, 2026

Overview

Brea regulates land use through its municipal zoning ordinance, codified as Title 20 of the Brea Municipal Code, which organizes permitted uses, development standards, procedures, and special districts across the city. Title 20 is structured so you can find base districts, objective development standards, and the procedural path for approvals in distinct chapters, with overlays and hillside regulations layered where needed. Downtown and corridor areas use Mixed-Use districts with higher intensity standards, while hillsides and hazard areas rely on overlay and specific permitting frameworks. State housing mandates (SB 9, density bonus, and ADUs) are integrated through dedicated chapters and definitions, with local procedures for ministerial and discretionary actions.

How Brea’s code is organized

• Title 20, the City’s Zoning Code, opens with Division I (General Regulations), which includes:
  • Chapter 20.00 (General Provisions and definitions) and Chapter 20.04 (establishment of zones and official zoning map).
  • Chapter 20.11 (Permitted land use listings), and Chapter 20.08 (citywide development standards for lot dimensions, yards, outdoor space, parking, TDM, etc.).
  • Chapter 20.20 (Performance Standards applicable citywide, e.g., vibration, glare, air emissions).
• Division II groups the individual zone chapters (residential, commercial, industrial), overlay districts, and the Mixed-Use districts. Examples include R-2 (Ch. 20.216), R-3 (Ch. 20.220), C-P (Ch. 20.224), C-G (Ch. 20.236), C-M (Ch. 20.240), M-1 (Ch. 20.252), M-2 (Ch. 20.256), PF (Ch. 20.261), WD Wall Design (Ch. 20.262), E Equestrian (Ch. 20.263), Mixed-Use (Ch. 20.258), and PC Planned Community (Ch. 20.272).
• Division III (Administration and Procedures) provides the approval toolbox:
  • Chapter 20.400 (administration, building permit issuance, procedure types), Chapter 20.404 (legislative procedures like zone changes/text amendments), Chapter 20.408 (administrative procedures such as plan review, conditional use permits, precise development), Chapter 20.412 (quasi-judicial procedures including variances), Chapter 20.416 (hearings), and Chapter 20.420 (decisions).

Zoning district families

Brea’s base districts fall into several families. Each district’s “Property Development Standards” section is where height, setbacks, lot coverage, and FAR for that district live.

• Residential
  • R-1, R‑1 5,000, and R1‑H (hillside single-family) are referenced in the plan review applicability for single-family developments.
  • E4 (Residential Estate) and RA (Residential Agricultural) are included within “single-family residential zone” for SB 9 context.
  • HR Hillside Residential uses a dedicated hillside chapter that mandates a Hillside Development Permit and provides slope-related standards and neighborhood design criteria.
  • R‑2 Multiple Family (Ch. 20.216) and R‑3 Multiple Family (Ch. 20.220) list permitted uses, prohibited uses, and “Property Development Standards” by district.
• Commercial
  • C‑P Commercial, Administrative and Professional (Ch. 20.224) and C‑G General Commercial (Ch. 20.236) each include “Uses permitted,” “Uses expressly prohibited,” and “Property Development Standards.”
  • C‑M Commercial Industrial (Ch. 20.240) blends commercial/industrial functions with its own standards.
• Industrial
  • M‑1 Light Industrial (Ch. 20.252) and M‑2 General Industrial (Ch. 20.256) include use lists, development standards, and performance standards cross-references. For M‑2, additional conditional use permitting is required near residential areas.
• Public and special frameworks
  • PF Public Facilities (Ch. 20.261) centralizes public-serving uses; development standards are case-by-case via City Planner review with plan review as determined.
  • PC Planned Community (Ch. 20.272) requires a Council-adopted Master Plan that can substitute or supplement base-zone standards with tailored development and design standards.
• Mixed-Use districts (Ch. 20.258)
  • Mixed‑Use I focuses downtown and transit-accessible sites; sets residential density at 12.1–50 du/ac and a maximum FAR 3.00.
  • Mixed‑Use II applies to larger coordinated sites; sets 6.1–40 du/ac and FAR 2.00.
  • Mixed‑Use III targets corridor revitalization with lower-intensity forms and transitions; see § 20.258.010 for applicable standards.
• Overlays
  • WD Wall Design Overlay (Ch. 20.262) sets uniform perimeter wall setbacks (min. 6 in.) and heights (6–8 ft) along arterial streets.
  • E Equestrian Overlay (Ch. 20.263) applies equestrian-compatible standards in mapped areas.
  • Flood Plain Overlay (Ch. 20.276) imposes additional hazard-based standards.
  • SGS Special Geologic Studies Zone (Ch. 20.280) requires geologic study and review procedures in mapped areas.

Citywide development standards

• General standards: Chapter 20.08 consolidates citywide rules for lot area and dimensions, yards, outdoor living space, small-lot standards, off‑street parking and loading, and transportation demand management; utility undergrounding and corner sight triangles are also covered. Look to the specific zone chapter for additional “Property Development Standards.”
• Parking: Off‑street parking and loading lives in § 20.08.040 and applies citywide, while mixed‑use projects also point to Division 3 “Site Planning and General Development and Operational Standards” for parking, landscaping, and signs.
• Performance standards: Citywide operational limits (e.g., fire/explosion hazards, vibration, dust/smoke/odors, glare) are in Chapter 20.20 and apply in addition to zone standards.
• Signage: The sign ordinance (Ch. 20.28) governs applications, permit types, and sign categories by district; use it with the signage page.
• Landscaping: Mixed‑use districts direct applicants to Division 3 for landscaping and other general standards; hillside areas also include dedicated landscape standards (§ 20.206.160). See landscaping and screening for orientation.
• Nonconformities: Continuation, alteration, and replacement of nonconforming uses, structures, and sites are addressed in Chapter 20.24.

Specific plans & overlays

• Planned Community (PC): The PC zone implements site‑specific Master Plans adopted by Council. A PC Master Plan must include detailed site plans, subdivision/design standards, and can utilize either existing Title 20 standards or approved alternative standards. Development thereafter proceeds per the Master Plan’s uses, standards, and review procedures.
• Hillside framework: The HR district requires a Hillside Development Permit for grading, subdivision, or construction, with clear purposes including slope‑responsive density, ridgeline preservation, and hazard protection; certain small projects are exempt from permit but must meet hillside standards.
• Overlays: The WD Wall Design Overlay sets arterial‑frontage wall parameters and requires plan review; Flood Plain Overlay and SGS layer hazard‑based checks and standards over base zones. See the overlay districts page for orientation.

Building permits & review

• Building permit issuance: No building shall be occupied without a certificate of occupancy; building permits issue only when plans and uses conform to Title 20 and any conditions of approval.
• Plan and design review: Many projects require plan review by the Director or Planning Commission under § 20.408.040, with application materials (site plan, elevations, phasing, etc.) and decision timelines; appeals are per Ch. 20.424. See design review.
• Review authority thresholds: A citywide chart assigns review to the City Planner, Director (Plan Review), or Planning Commission depending on project size and unit count (e.g., up to four units at Director level; five or more to Commission).
• Discretionary tools: Conditional Use Permits (CUP) and their findings, terms, and expirations are in § 20.408.030; precise development review is used in Mixed‑Use zones and any “Precise Development” zone; variances are in § 20.412.010.
• Building code: Construction is subject to the state California Building Standards Code. Title 20 coordinates zoning compliance with permit issuance; detailed construction requirements reside in the building code (not in the zoning title).

State housing law in Brea

• SB 9 two‑unit/urban lot splits: Chapter 20.56 provides objective standards and administrative processing for ministerial approval of two‑unit developments and urban lot splits in single‑family zones (including R‑1, E4, and RA) when state‑law criteria are met (e.g., not in specified hazard/historic areas; no recent tenant occupancy/demolition of protected units).
• Density Bonus: Chapter 20.42 implements Gov. Code § 65915 citywide and requires the City to grant density bonuses, incentives, waivers, and reduced parking where qualifying; requests are processed per § 20.42.090.
• ADUs/JADUs: “Accessory dwelling unit” and “junior accessory dwelling unit” are defined in Title 20, and Brea establishes a “certificate of compatibility” procedure for ADUs that don’t meet established standards, ensuring ministerial coordination with neighborhood character. See ADUs and California ADU law.
• Rent rules: A local rent‑control ordinance is not found in Title 20 of the zoning code (verify with the City). For tenant protections (e.g., AB 1482) see California housing laws. Not found in retrieved materials.

Mixed‑Use summary (selected standards)

• Mixed‑Use I (Downtown/Birch St.): up to FAR 3.00; 12.1–50 du/ac.
• Mixed‑Use II (larger coordinated sites): up to FAR 2.00; 6.1–40 du/ac.
• Mixed‑Use III (arterial corridors): lower intensity, transitional forms; see § 20.258.010.

Source References

• City of Brea — Title 20 Zoning Code (ecode360.com/BR6949): Divisions, chapters, and section citations used throughout.
• Ch. 20.08 Development Standards; Ch. 20.20 Performance Standards; Ch. 20.24 Nonconforming; Ch. 20.28 Signs.
• Residential and Commercial/Industrial district chapters incl. R‑2 (20.216), R‑3 (20.220), C‑P (20.224), C‑G (20.236), C‑M (20.240), M‑1 (20.252), M‑2 (20.256), PF (20.261).
• Mixed‑Use districts (Ch. 20.258) including downtown standards.
• Overlays: WD Wall Design (20.262), E Equestrian (20.263), Flood Plain (20.276), SGS (20.280).
• Administrative procedures, CUPs, precise development, and building permit issuance.
• Planned Community zone and Master Plan content.
• SB 9 two‑unit/urban lot splits (Ch. 20.56).
• Density Bonus (Ch. 20.42).