Local zoning · Downey

Downey — Land Use

Land Use under the Downey local zoning and planning code, with the controlling citations.

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Last reviewed: July 2, 2026

Overview

This page summarizes what the City of Downey's zoning ordinance (the locally adopted Title 17 / Article IX Land Use rules) actually says about land use: which uses are permitted or conditional in each zone, the key numeric development standards that matter for decisions, and the most-used overlays (and how they interact with the base zones). The local rules require that if a use isn't listed in a zone table it is not permitted; discretionary approvals (Conditional Use Permits, Site Plan Review, PUDs) are governed by specific sections cited below. See the city's Downey Zoning pages for context and the code text cited here for the authoritative rules (§ 9102, § 9104).

District-by-district breakdown (purpose, typical permitted uses, key dimensional standards, where it applies)

NOTE: the ordinance treats "Uses" (what you can operate) separately from "Property development standards" (setbacks, FAR, heights). If the table for a zone does not list a use, that use is Not Permitted. See the development standards tables listed below and the applicable review processes in the code.

Residential Zones — R-1, R-2, R-3, R-3-O

  • Purpose: preserve single-family character (R-1) and provide multi-family/density gradations (R-2, R-3, R-3-O) in defined areas.
  • Typical permitted uses: Accessory dwelling units (ADUs) are permitted in all residential zones (subject to ADU rules) and apartments/condominiums are permitted in R-2/R-3 as listed in Table 9.3.2. See § 9312.06.
  • Key dimensional standards (R-1 example): minimum lot area 5,000 sq ft (R-1–5,000); maximum FAR 0.45; maximum lot coverage 45%; maximum main building height 28 ft; front setback 20 ft (see Table 9.3.3 and § 9312.08).
  • Where it applies: All mapped residential parcels; sub-zone suffixes indicate lot-size minima (e.g., R-1 – 5,000, R-1 – 6,000). § 9312.04 and § 9312.06.

Practical note: ADUs are explicitly permitted but are subject to the City's ADU rules—see Downey ADUs and Section 9414 referenced in Table 9.3.2.

Commercial Zones — C-P, C-1, C-2, C-3, C-M, H-M

  • Purpose: graded commercial intensity from neighborhood-serving to heavy commercial/medical/biomedical. § 9314.04 explains the Table structure.
  • Typical permitted uses: the code uses a use matrix (Table 9.3.5). Examples: offices are P in many commercial zones; restaurants may be P or C depending on the zone and operational characteristics (drive-thru, alcohol) — see the "Notes and Exceptions" column. Medical outpatient services are allowed in certain zones.
  • Key dimensional & conduct standards: landscaping minimums (at least 10% of developed site) and parking/operational rules; site plan review required for many nonministerial projects. See § 9314.04 and the development standards tables referenced there.
  • Where it applies: commercial corridors and centers mapped as C-P, C-1, C-2, C-3, C-M, H-M on the Official Zoning Map. § 9314.04.

Practical note: many commercial uses carry exceptions (e.g., drive-thru windows require a Conditional Use Permit in any commercial zone) — always check the "Notes and Exceptions" column in Table 9.3.5.

Mixed-Use Zone — M-U (Mixed-Use)

  • Purpose: encourage ground-floor retail/office with residential above; pedestrian-oriented design. § 9316.02.
  • Typical permitted uses: mixed-use buildings, apartments/condominiums, ground-floor retail and services — Table 9.3.7 spells out allowed commercial and residential uses (P, C, NP designations). § 9316.04 and Table 9.3.7.
  • Key dimensional standards: minimum lot area 7,500 sq ft, maximum FAR 4.0, max residential density 24 du/ac, max height 75 ft or 5 stories (Table 9.3.8; see § 9316.06). Site plan review and transparency requirements for ground-floor storefronts (minimum 60% clear glazing between 2'–8') are specified.
  • Where it applies: Downtown and other pedestrian mixed-use corridors as mapped; site-specific performance standards apply. § 9316.02–§ 9316.08.

Practical note: mixed-use projects that provide at least 50% of gross floor area as residential are treated differently in several overlays—verify thresholds and the "no net loss" rules. § 9328.12(b).

Manufacturing / Industrial Zones — M-1, M-2 and similar

  • Purpose and use tables: Manufacturing zones permit industrial, light manufacturing, warehouses and certain supportive commercial services; outdoor storage and conduct are strictly regulated and often require screening and site plan review; see Manufacturing zones' use tables and § 9319.* (Manufacturing tables and standards are in the code; see Chapter entries for Manufacturing Zones).
  • Key rules: site plan review required in manufacturing zones; outdoor storage must be screened behind solid masonry walls; no chain-link fencing allowed for screening in many cases.

Public Zone — P

  • Purpose: accommodate public facilities (libraries, schools, utility stations) and related uses; Table 9.3.11 lists permitted uses. § 9320.02–§ 9320.06.

Open Space Zone — O-S

  • Purpose: preserve open space, recreational, conservation areas; uses limited and listed in Table 9.3.13. § 9322.02–§ 9322.04.

Overlays and Special Zones (how they change base-zone rules)

  • Planned Unit Development (PUD) overlay: adds flexibility for mixed uses and alternative standards when a PUD permit is approved; minimum site area 5 acres for PUD; PUD regulations are in § 9324.02–§ 9324.08.
  • Biomedical Overlay (BIO): permits biomedical, hospital, medical office and related uses in mapped BIO areas; it applies to commercial and manufacturing base zones and directs that base-zone development standards still apply unless the BIO lists otherwise; see § 9326.04–§ 9326.12.
  • Housing Overlay Zones (HOU-1, HOU-2): created to implement Housing Element sites with higher residential densities (e.g., HOU-1: 18–40 du/ac; HOU-2: 30 du/ac); they modify or supersede base-zone standards per § 9328.04–§ 9328.12 and Table 9.3.16.

Overlay practical note: overlays typically state "All projects shall comply with the standards of the underlying base zone, in addition to the standards within this section" and provide rules for conflicts (overlay vs. base) — see § 9328.08(a).

Quick reference table — selected decision-relevant permitted uses / standards

Zone / Topic Typical permitted uses or standard Code reference
R-1 (single-family) ADUs permitted, front setback 20 ft, FAR 0.45, lot coverage 45%, main bldg height 28 ft § 9312.08
R-2 / R-3 Multi-family permitted; site plan review for R-3 in some cases § 9312.06; § 9312.08
C-2 / C-3 Retail, restaurants (conditional for drive-thru/alcohol), offices, medical outpatient services allowed in specific zones § 9314.04; Table 9.3.5
M-U (Mixed-Use) Mixed-use buildings; max FAR 4.0, max height 75 ft / 5 stories, transparency 60% on ground-floor storefronts § 9316.06; Table 9.3.8
Biomedical Overlay (BIO) Biomedical uses, hospitals, medical offices added to base zones; other commercial uses conditional § 9326.06–§ 9326.10
HOU-1 / HOU-2 (Housing overlays) HOU-1: 18–40 du/ac, HOU-2: 30 du/ac; base-zone standards apply unless overlay provides otherwise § 9328.06–§ 9328.08; Table 9.3.16
Site review / discretionary actions Conditional Use Permits and Site Plan Review processes and timeframes are in the code; many conditional uses point to § 9824 (CUP rules) and § 9820 (Site Plan Review) § 9314.04; § 9326.08; § 9820/§ 9824 referenced throughout

Checklist — what an applicant must satisfy (high-level)

  • Confirm the property's mapped base zone and any overlay zoning on the Official Zoning Map (verify mapped designations). See § 9102 and the zone-specific sections.
  • Confirm the proposed use is listed as P (Permitted) or C (Conditional) in the applicable Table (Residential Table 9.3.2, Commercial Table 9.3.5, Mixed-Use Table 9.3.7, etc.). If not listed — Not Permitted. § 9312.06; § 9314.04; § 9316.04.
  • Verify dimensional standards (setbacks, height, FAR, lot coverage) in the applicable development standards table for the zone — e.g. Table 9.3.3 (R-1), Table 9.3.8 (M-U). § 9312.08; § 9316.06.
  • Check overlay rules (PUD, BIO, HOU) for additional uses or modifications and conflict rules (overlay vs base). § 9324.02; § 9326.04; § 9328.08.
  • If the use requires a Conditional Use Permit (C) or Site Plan Review, prepare findings and materials per § 9824 (CUP) and § 9820 (Site Plan Review). See the "Notes & Exceptions" in the applicable use table.
  • Prepare off-street parking calculations and show compliance with the city's Downey Parking rules (chapter references embedded in zone standards). § 9316.06; off-street parking subject to Chapter 7.
  • For mixed-use/multifamily projects on Housing Element sites, confirm density and "no net loss" requirements under the Housing Overlay rules and State law references in § 9328.12(b).

Risks & Ambiguities

Issue Why it matters What to verify
Use not listed in zone table The code treats unlisted uses as Not Permitted — attempting to proceed without proper rezoning or CUP risks denial and enforcement. Confirm the precise use category in Table 9.3.2 / 9.3.5 / 9.3.7; if ambiguous, ask Planning staff. § 9312.06; § 9314.04; § 9316.04.
Overlay vs base-zone conflict Overlays (BIO, HOU) may explicitly supersede or modify base standards — conflict language varies by overlay. Misreading leads to incorrect setbacks/density. Read overlay sections carefully: § 9326.10 (BIO) and § 9328.08(a) (HOU) explain conflict resolution. Verify with Planning.
“50% residential” mixed-use threshold Several overlay and review rules treat projects differently if ≥ 50% of gross floor area is residential (e.g., HOU rules, no-net-loss findings). Confirm calculation method for gross floor area and whether vertical/horizontal mixes count; verify with Planning and reference § 9328.06/§ 9328.12.
Drive-thru / alcohol / entertainment qualifiers Many uses are allowed only if not having drive-thru or alcohol, or they become conditional uses (C). Check "Notes and Exceptions" in Table 9.3.5 / 9.3.7 and CUP triggers (examples: drive-thru → CUP). § 9314.04; Table 9.3.5.
Parcel‑specific constraints (prevailing setbacks, alley vs lot-line adjacency) Some setbacks vary where parcels abut R-1, alleys, and the prevailing setback map may impose different requirements. Verify prevailing setback maps, parcel adjacency notes in Tables 9.3.3/9.3.8 and section notes. § 9312.08 notes; § 9316.06 notes.

If something above is parcel-specific or uncertain, the code instructs to "Verify with the jurisdiction." The code also frequently points to site plan review and CUP procedures for case‑by‑case determinations.

Plain-English Summary

Downey's zoning code lists what is allowed in each mapped zone using clear use tables and numeric development standards: if your use isn't listed in the table for your zone, it's not permitted; where a use is conditional it requires a Conditional Use Permit or Site Plan Review. Overlays such as the Biomedical Overlay and Housing Overlays add or change permitted uses and density but generally require compliance with the base zone unless the overlay says otherwise — always check the specific § cited for each zone.

Source References

  • § 9102, § 9104 (Comprehensive Zoning Ordinance; intent and applicability).
  • Residential zones: § 9312.04 (R-1 subzones) and § 9312.06 (Residential uses); § 9312.08 (R-1 property development standards; Tables 9.3.3/9.3.4).
  • Commercial uses and standards: § 9314.04 and Table 9.3.5 (Commercial Zones Use Regulations).
  • Mixed-Use zone: § 9316.02 (intent), § 9316.04 (use regs, Table 9.3.7), § 9316.06 (property development standards, Table 9.3.8) and § 9316.08 (performance standards).
  • Planned Unit Development Overlay (PUD): § 9324.02–§ 9324.08.
  • Biomedical Overlay (BIO): § 9326.04–§ 9326.12 (uses permitted, conditional uses, development standards, expedited processing).
  • Housing Overlay Zones (HOU-1, HOU-2): § 9328.04–§ 9328.12 and Tables 9.3.15/9.3.16 (uses and development standards).
  • Public and Open Space zones: § 9320.02–§ 9320.06 and § 9322.02–§ 9322.06 (uses/tables).
  • Conditional Use Permit and Site Plan Review references (procedures called out by the use tables): § 9824 and § 9820 (referenced throughout tables and overlay sections).

Relevant City topic pages (internal links used above):

  • Downey Zoning: /us/california/downey/zoning
  • Downey Development Standards: /us/california/downey/development-standards
  • Downey Parking: /us/california/downey/parking
  • Downey Design Review: /us/california/downey/design-review
  • Downey Overlay Districts: /us/california/downey/overlay-districts
  • Downey ADUs: /us/california/downey/adu
  • California Building Standards Code: /us/california/building-codes

Information Gaps

  • Exact current Official Zoning Map parcel assignments and site‑specific prevailing setback maps are not included in the retrieved files; verify by checking the City's zoning map or contacting Planning (Not found in retrieved materials).
  • Some administrative procedural detail (filing fees, application forms, ministerial checklists) live outside Title 17 and were not in the retrieved ordinance text (Not found in retrieved materials). Verify with Planning staff.

Sources

Retrieved passages

  • Downey Zoning Code (§ 9326.08.) High relevance
  • Downey Zoning Code (§ 9328.08.) High relevance
  • Downey Zoning Code (section and) High relevance
  • Downey Zoning Code (§ 9328.04.) High relevance
  • Downey Zoning Code (§ 9312.08.) High relevance
  • Downey Zoning Code Medium relevance
  • Downey Zoning Code Medium relevance
  • Downey Zoning Code (Chapter 10) High relevance
  • Downey Zoning Code (Section 9314.06) High relevance
  • Downey Zoning Code (§ 9316.06.) High relevance
  • Downey Zoning Code (§ 9326.04.) Medium relevance
  • Downey Zoning Code (§ 9316.06.) Medium relevance
  • Downey Zoning Code (§ 9328.10.) Medium relevance
  • Downey Zoning Code (article governing) Medium relevance

Cited sections

Frequently asked questions

What can I build on an R-1 lot in Downey?

You may build uses listed as P in Table 9.3.2 for R-1 (single-family dwellings, accessory dwelling units permitted subject to § 9414). Dimensional limits (e.g., front setback 20 ft, FAR 0.45, lot coverage 45%, main building height 28 ft) are in the R-1 development standards (Table 9.3.3 and § 9312.08). Confirm your lot’s R-1 sub-zone (R-1–5,000, R-1–6,000, etc.) as that changes minimum lot area and widths.

What are Downey’s setback requirements for single-family homes?

The R-1 tables set the standard: front setback 20 ft (first floor) for R-1 examples; other setbacks and special rear-yard rules (abutting R-1, alleys, R-3) are in the notes to Table 9.3.3 and § 9312.08. Always verify the prevailing setback map where applicable.

Is a restaurant allowed in a C-2 zone and do drive-thrus trigger extra review?

Restaurants are generally listed in Table 9.3.5 and may be Permitted or Conditional depending on the zone and features. A drive-thru or drive‑thru ATM generally requires a Conditional Use Permit per the table notes — check Table 9.3.5 and § 9314.04.

Do I need design review for a mixed-use project in Downey?

Yes — the Mixed-Use zone requires Site Plan Review for new permitted structures and improvements and has objective transparency and entrance rules (e.g., 60% ground-floor glazing). See § 9316.06 and § 9316.08 for standards and § 9820 for site plan review procedures; overlay zones may also require additional design compliance.

What is allowed in the Biomedical Overlay (BIO) zone?

The BIO overlay permits biomedical uses, hospitals, medical outpatient services, medical offices, medical equipment sales, and related uses in addition to the base commercial/manufacturing uses; some commercial activities (bars, retail) are allowed only with a Conditional Use Permit. Development standards default to the underlying base zones unless BIO lists otherwise. See § 9326.06–§ 9326.10.

How do the Housing Overlay zones (HOU-1 / HOU-2) change what I can build?

HOU overlays allow higher residential densities for specified Housing Element sites: HOU-1: 18–40 du/ac; HOU-2: 30 du/ac, with development standards in Table 9.3.16. They require compliance with the underlying base zone unless the overlay provides specific alternate standards; check § 9328.06–§ 9328.08. Projects must also meet the "no net loss" findings for lower‑income capacity where applicable.

If my proposed use isn’t in the zone’s table, can I apply for it anyway?

No — the code says if a use is not specifically listed in the zone’s table, it is Not Permitted. The path forward is rezoning, a zoning text amendment, or seeking an interpretation / discretionary exception where allowed. See § 9312.06 and § 9314.04 (the tables and the "not listed = not permitted" rule). Verify options with Planning.

What triggers a Conditional Use Permit (CUP) in Downey?

Uses marked C in the zone use tables require a CUP. Additionally, certain operational features (drive-thru windows, on-sale alcohol) or location-sensitive uses may be conditional per the "Notes and Exceptions" column. CUP procedures and findings are in § 9824 (referenced in the use tables).

Where do I find parking requirements to show compliance?

Off-street parking and loading are regulated separately (Chapter 7) and zone tables reference that chapter for required parking. Your project must demonstrate compliance with the city's parking standards in site plan and building permit submissions. See the Mixed‑Use and zone tables that point to Chapter 7 and § 9316.06 / § 9312.08 where applicable.

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