Local zoning · Arcadia

Arcadia — Overlay Districts

Q: Can I build residential housing on a commercially zoned lot because of the Residential‑Flex overlay?

Possibly: the R‑F overlay permits residential development by‑right only when 20% or more of units are affordable to lower‑income households and the site is one identified for R‑F; otherwise other review applies. Check § 9102.11.050 and whether the parcel is listed in the City’s available‑sites inventory.

Q: How high can a building be if it’s in an H overlay?

Height depends on the H designation: H4 = 45 ft; H5 = 55 ft; H6 = 65 ft; H7 = 75 ft; H8 = 95 ft — but a CUP and compliance with H provisions are required. See § 9102.11.040 .

Q: Are temporary events at Santa Anita governed differently than other temporary uses?

Yes. The RTE overlay applies to racetrack event areas; many temporary uses permitted by the Special Use zone are allowed but with RTE‑specific limits (for example, no equipment within 100 ft of residentially‑zoned property ) and special review thresholds for Temporary Use Permits. See § 9102.11.060 and § 9107.23 .

Overlay Districts under the Arcadia local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

Arcadia’s overlay zones supplement a parcel’s base zone with targeted rules for special areas or policy goals (for example, greater housing flexibility or controlled event uses). Overlay provisions are part of the City of Arcadia Development Code (Article IX, Division and Use of Land) and, where there is a conflict, the overlay controls over the base zone. See § 9101.03.020 for the overlay rule and how overlays interact with base zoning.

This page synthesizes what the Development Code actually requires for Arcadia’s named overlays (purpose, typical uses, key dimensional standards, and how they are applied). It links to the City’s pages on zoning, land use, design review, parking, and related processes where practitioners commonly need more detail.

Important first links (internal):

Arcadia’s main zoning framework is the foundation for overlays. See land use and the City development standards for underlying regulations.
If your project changes parking supply, consult Arcadia’s parking rules.
Projects subject to design review should read the design review guidance; several overlays require site plan and design review.
Architectural-type overlays interact with Arcadia’s historic preservation and signage controls in practice; consult those pages as needed.
Accessory Dwelling Units (ADUs) have separate development rules — see ADUs and the California Building Standards Code for construction standards.

How overlays are organized in the Code

The Development Code is titled the City of Arcadia Development Code (Article IX) and establishes zones and overlay zones in the tables and text of Division/Chapters that follow; the overlay concept is defined at § 9101.03.020.
Arcadia’s named overlays appear in the Code at Subsections in the 9102.11 series (for example H, R-F, P, DMU, RTE, and D/DO overlays). Each overlay has a purpose, allowed-use statement, and development standards; where the overlay requires Council Resolutions (Architectural Design), those site-specific rules are on file with the Planning Department. See the individual subsections cited below.

Overlay district-by-district breakdown

All subsections below summarize the Code’s stated purpose, typical permitted uses, key dimensional or process controls, and application/limits. Each summary is grounded in the cited Arcadia Code § and the Development Code files retrieved.

Architectural Design Overlay (D / Architectural Design Overlay)

Purpose: The Architectural Design Overlay (D) is intended to protect architectural character through area-specific exterior design regulations and Council-adopted design standards. See § 9102.11.010.
Typical permitted uses: Uses conform to the underlying zone; the overlay regulates exterior design, setbacks, landscaping and signage as determined by Council resolution. See § 9102.11.010.
Key dimensional/process controls: Plans for exterior architectural design, landscape, advertising, parking and setbacks must “comply with the regulations determined and established by the Council” and no permit issues unless those plans comply or are approved by the Commission. Appeals and ARB processes are set out in the same subsection. See § 9102.11.010.E.
Where it applies: Area-specific; Council adopts the overlay and the implementing regulations by Resolution and the Planning Department keeps property descriptions and design overlay site plans on file. See § 9102.11.010.E.2–3.

Special Height Overlay (H)

Purpose: The Special Height "H" Overlay allows specified increases to underlying height limits without a variance, subject to a Conditional Use Permit and the H-zone rules. See § 9102.11.040.
Typical permitted uses: Uses are the same as the underlying zone; the overlay only modifies allowable height if the H conditions and CUP are met. See § 9102.11.040.B.
Key dimensional standards: Height caps are tiered by H level: H4 = 45 ft, H5 = 55 ft, H6 = 65 ft, H7 = 75 ft, H8 = 95 ft. Exceeding underlying height still requires compliance with H provisions and a CUP per § 9102.11.040.C.1–c.
Where it applies: Map-based; the Code shows maximum heights for zones under the H overlay (e.g., C-R may have H8 noted in development standards). Verify parcel-specific H designation on the official Zoning Map. See § 9102.03.030 and § 9101.04.010.

Residential‑Flex Overlay (R‑F or RF)

Purpose: The Residential-Flex "RF" Overlay provides flexibility to permit residential projects on commercially zoned parcels to encourage housing (including incentives for affordable units) while maintaining compatibility through development and design standards. See § 9102.11.050.A.
Typical permitted uses: Residential developments on identified RF sites are allowed by-right if 20% or more of units are affordable to lower-income households; otherwise the underlying use rules apply. See § 9102.11.050.B.
Key dimensional standards (summary from Table 2‑15): maximum heights up to 60 ft (where shown), densities minimum 30 / maximum 50 du/ac in certain subareas, minimum setbacks commonly 10 ft for front, side, and street-side, minimum open space 100 sf/unit, minimum distance between structures 6 ft, and parking 1 space per studio; 1.5 spaces per unit (see Table 2‑15 and § 9102.11.050.C–G). See § 9102.11.050 and Table 2‑15.
Process and incentives: By‑right approval (no CUP or PUD) is allowed for qualifying affordable projects but is still subject to subdivision rules and Objective Development Standards; additional incentives are referenced to the density bonus rules in § 9103.15.030. See § 9102.11.050.B.
Where it applies: Only on sites identified by the City (including the Housing Element available sites list); CG parcels outside the available-sites list can only develop residential if consolidated with an eligible site under common ownership or subject to Site Plan & Design Review. See § 9102.11.050.C Note (2).

Downtown Mixed Use Overlay (DMU Overlay)

Purpose: The Downtown Mixed Use Overlay (DMU) extends DMU development standards onto certain C‑M parcels to encourage high‑density residential and transit‑oriented projects downtown. See § 9102.11.080.A.
Typical permitted uses: Uses conform to the underlying zone, but residential is explicitly allowed under the overlay subject to the DMU development standards if affordable units are provided. See § 9102.11.080.B–C.
Key dimensional standards: When eligible (affordability criteria met), projects use DMU zone development standards (refer to Table 2‑11). By‑right status for projects with 20% low/lower‑income units is provided similarly to RF overlay rules. See § 9102.11.080.C–D.
Where it applies: Mapped downtown parcels (C‑M parcels adjacent to DMU); check the Zoning Map for boundaries. See § 9102.11.080 and § 9101.04.010.

Race Track Event Overlay (RTE)

Purpose: The Race Track Event "RTE" Overlay controls temporary and special event activities on portions of the Santa Anita Racetrack so adjacent residential uses are protected. See § 9102.11.060.A.
Typical permitted uses: Temporary and special event uses identified in the Special Use zone are permitted, subject to the RTE-specific limitations (and the special use rules). See § 9102.11.060.B.
Key development limits: No equipment or apparatus shall be placed within 100 feet of adjacent residentially zoned property lines. See § 9102.11.060.C. Event permitting and review thresholds for Temporary Use Permits are more restrictive and often require Director or City Council action depending on attendance and recurrence; see the Temporary Use Permit provisions tied to the RTE overlay. See § 9107.23 and § 9102.11.060.
Where it applies: Portions of the racetrack property as shown on the Zoning Map; certain event permits must follow the RTE review path. See § 9102.11.060 and § 9101.04.010.

Vehicle Parking Overlay (P)

Purpose: The Vehicle Parking "P" Overlay permits stand‑alone off‑street parking areas as a use in mapped locations. See § 9102.11.070.A.
Typical permitted uses: In addition to underlying uses, open-air temporary parking of private, transient vehicles is allowed, provided the parking conforms to the off‑street parking chapter. See § 9102.11.070.B.
Key rules: Development in P overlays otherwise follows the underlying zone standards and must comply with § 9103.07 Off‑Street Parking and Loading. See § 9102.11.070.C.
Where it applies: Map-based; check the Zoning Map for "P" locations. See § 9101.04.010.

Quick reference table — decision‑relevant standards

Overlay Zone	Purpose (one line)	Decision‑relevant standards / permits	Code Reference
Architectural Design (D)	Area-specific exterior design controls	Plans must comply with Council design regs; ARB/Commission review and appeals process	§ 9102.11.010
Special Height (H)	Allow greater heights with CUP	Height caps: H4=45 ft; H5=55 ft; H6=65 ft; H7=75 ft; H8=95 ft; CUP required	§ 9102.11.040
Residential‑Flex (R-F)	Permit residential on commercial parcels to add housing	Affordability trigger: ≥20% lower‑income for by‑right; heights up to 60 ft in Table 2‑15; parking 1/studio, 1.5/unit	§ 9102.11.050 and Table 2‑15
Downtown Mixed Use (DMU) Overlay	Encourage high‑density residential downtown	Use DMU standards (Table 2‑11) when affordability met; ≥20% by‑right rule	§ 9102.11.080
Race Track Event (RTE)	Regulate racetrack events to protect residences	Temporary uses allowed; no equipment within 100 ft of residentially zoned property; event review thresholds	§ 9102.11.060; § 9107.23
Vehicle Parking (P)	Allow stand‑alone parking as a use	Surface parking allowed if conforming to off‑street parking rules (Table 3‑3 / § 9103.07)	§ 9102.11.070

Checklist — What an applicant must satisfy (high‑level)

Confirm the parcel is inside the target overlay using the official Zoning Map (verify with Planning staff). See § 9101.04.010.
Determine whether the overlay changes permitted uses (e.g., RF/DMU allow residential by‑right only if ≥20% of units are affordable). See § 9102.11.050.B and § 9102.11.080.D.
Assemble development standards that apply: use the overlay’s Table (e.g., Table 2‑15 for R‑F) plus Division 3 “Regulations Applicable to All Zones.” See § 9102.11.050.C.
Confirm parking calculations and any reductions/credits under the overlay; reference Arcadia parking rules and Table 3‑3.
Prepare Site Plan and Design Review submittal where required (RF, DMU, Architectural overlays commonly require review). See § 9102.11.050.I and § 9107.19.
For H overlays, prepare a CUP application demonstrating compliance with H standards. See § 9102.11.040.C.
If Architectural Design Overlay applies, obtain/respect Council Resolutions and ARB requirements kept on file with the Planning Department. See § 9102.11.010.E.
Verify any site‑specific overlay plan (Design Overlay Site Plan) for special placement/building area restrictions (e.g., C‑R building area maps). See § 9102.03.030 Note (1).

Risks & Ambiguities

Issue	Why it matters	What to verify
Zoning map boundary uncertainty	Overlay rules apply only inside the mapped overlay — an incorrect boundary assumption can derail approvals	Verify overlay boundary on the official Zoning Map and confirm with the Director per § 9101.04.030.
Whether a CG parcel is “available site” for R‑F	R‑F residential on CG is allowed only if parcel is listed in the Housing Element available‑sites list; otherwise consolidation or a different review path applies	Check the City’s available‑sites list on file with Development Services; see § 9102.11.050.C Note (2).
Overlay vs underlying zone conflicts	Overlays supersede base zone where they conflict; misreading which standard governs can cause noncompliance	Rely on § 9101.03.020.C and cite the overlay § controlling the specific rule.
Architectural Overlay Resolutions kept by Council	The Code defers specific design rules to Council Resolutions for each D area — the text alone does not state the precise standards	Request the applicable Council Resolution and Design Overlay Site Plan from Planning. See § 9102.11.010.E.
Parking counts vs overlay allowed uses	Some overlays (RF) include different parking metrics or allow reductions; relying on base Table 3‑3 alone may be insufficient	Confirm parking requirements in § 9102.11.050.E and Table 3‑3; consult the City on allowable reductions.

Plain‑English summary

Arcadia’s overlay zones are mapped extra rules that sit on top of the base zoning: some overlays (like R‑F and DMU) create pathways to build housing on commercial land if you meet affordability and design rules; H lets you seek higher building heights with a CUP; D requires compliance with Council-adopted design standards; RTE and P control racetrack events and stand‑alone parking respectively. Always confirm the parcel’s overlay map status and the specific Council resolutions or tables that accompany the overlay before designing a project. Relevant authority: § 9101.03.020 and the 9102.11 overlay subsections.

Information Gaps

Exact map PDFs or GIS parcel overlays showing the current spatial boundaries for each overlay are not included in the retrieved materials. Verify on the official City Zoning Map or with Planning staff. See § 9101.04.010.
Council Resolutions implementing the Architectural Design (D) overlay for specific neighborhoods (the Code directs users to those Resolutions kept on file) are not reproduced here. Request those from Planning. See § 9102.11.010.E.
Table 2‑11 (Downtown standards) and the full text of Table 3‑3 (Off‑Street Parking) were referenced in the Code snippets but the full tables and any recent amendments should be checked in the official Code or with staff. See § 9102.11.080.C and § 9103.07.

Source References

City of Arcadia Development Code (Article IX, Division and Use of Land): definition of Overlay Zone and interaction with base zones — § 9101.03.020.
Architectural Design Overlay (D) — § 9102.11.010 (Council Resolutions, plan compliance, appeals, ARB/Commission roles).
Special Height Overlay (H) — § 9102.11.040 (H4–H8 height caps, CUP requirement).
Residential‑Flex (R‑F) Overlay — § 9102.11.050 and Table 2‑15 (development standards: heights, density, setbacks, parking).
Downtown Mixed Use Overlay (DMU) — § 9102.11.080 (DMU standards and affordability incentives).
Race Track Event Overlay (RTE) — § 9102.11.060 and Temporary Use Permit rules § 9107.23 (event thresholds; 100‑ft equipment buffer).
Vehicle Parking Overlay (P) — § 9102.11.070 (parking as a stand‑alone use; conform to § 9103.07).
Development Code title and purpose (Article IX, Chapter 1): § 9101.01.010 – § 9101.01.020.

Sources

Retrieved passages

CFC § 9103.15.030 (section are) Medium relevance
Arcadia Zoning Code (§ 4) Medium relevance
Arcadia Zoning Code Medium relevance
Arcadia Zoning Code (CHAPTER 1.) Medium relevance
Arcadia Zoning Code (Section shall) Medium relevance
Arcadia Zoning Code (Section 9102.11.080) Medium relevance
Arcadia Zoning Code Medium relevance
Arcadia Zoning Code (Section and) Medium relevance

Cited sections

Official Arcadia code library

Frequently asked questions

What does an overlay zone change about my parcel in Arcadia?

Overlay zones add area‑specific rules on top of the base zone; where an overlay conflicts with the base zone, the overlay controls. Verify the overlay boundary on the official Zoning Map and apply the overlay’s stated standards (see § 9101.03.020).

Can I build residential housing on a commercially zoned lot because of the Residential‑Flex overlay?

Possibly: the R‑F overlay permits residential development by‑right only when 20% or more of units are affordable to lower‑income households and the site is one identified for R‑F; otherwise other review applies. Check § 9102.11.050 and whether the parcel is listed in the City’s available‑sites inventory.

How high can a building be if it’s in an H overlay?

Height depends on the H designation: H4 = 45 ft; H5 = 55 ft; H6 = 65 ft; H7 = 75 ft; H8 = 95 ft — but a CUP and compliance with H provisions are required. See § 9102.11.040.

Do overlays change parking requirements?

Overlays may include their own parking metrics or point you to the standard off‑street parking rules. For example, the R‑F overlay specifies minimum parking (e.g., 1 space per studio; 1.5 spaces per unit) and otherwise refers to Table 3‑3 / § 9103.07. Always confirm parking with staff. See § 9102.11.050.E.

Does the Architectural Design Overlay impose specific exterior design rules?

Yes — the D overlay requires exterior architectural, landscape, and signage plans to comply with Council‑adopted regulations and design overlay site plans; the specific rules are set by Council Resolutions kept on file with the Planning Department and enforced under § 9102.11.010.

If my project exceeds an underlying height limit but is inside an H overlay, do I still need a discretionary permit?

Yes. Structures may exceed underlying height only by complying with the H overlay provisions and subject to approval of a Conditional Use Permit as required by § 9102.11.040.C.

Are temporary events at Santa Anita governed differently than other temporary uses?

Yes. The RTE overlay applies to racetrack event areas; many temporary uses permitted by the Special Use zone are allowed but with RTE‑specific limits (for example, no equipment within 100 ft of residentially‑zoned property) and special review thresholds for Temporary Use Permits. See § 9102.11.060 and § 9107.23.

Where do I find the exact overlay boundaries and any site‑specific design overlay plans?

Overlay boundaries and any Design Overlay Site Plans are part of the City’s official Zoning Map and Council Resolutions on file with the Planning Department; the Code references those maps and Resolutions but does not reproduce every site description. Verify via § 9101.04.010 and the applicable overlay subsection.

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