Local zoning · Rosemead

Rosemead — Zoning

Q: What can I build on an R‑1 lot in Rosemead?

In R‑1 you may build a single‑family dwelling and permitted accessory uses; Accessory Dwelling Units (ADUs) are permitted subject to § 17.30.190 and the R‑1 standards in § 17.12.030 . Always check the use table in § 17.12.020 for accessory use rules and parking requirements. § 17.12.020 , § 17.30.190

Q: If my lot borders an R‑1 zone, how high can a commercial building be?

Commercial and other nonresidential zones abutting R‑1/R‑2 have a variable height limitation using an inclined plane described in § 17.08.050(I) ; the plane commonly starts at a specified height and projects at 60 degrees from a setback line — apply this early in design. § 17.08.050(I)

Q: Can I reduce a setback or parking requirement administratively?

Minor exceptions up to 20% for rear/side yard, lot coverage, driveway or parking stall sizes may be granted by the Community Development Director under the Minor Exception provisions (see § 17.142.020 ); larger deviations require Planning Commission action or a variance. § 17.142.020

Zoning under the Rosemead local zoning and planning code, with the controlling citations.

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Last reviewed: July 2, 2026

Overview

This page explains how the City of Rosemead organizes land-use regulation in its Zoning Code (Title 17 of the Rosemead Municipal Code). It summarizes the official zoning districts, the adopted Official Zoning Map, the district purposes, key dimensional standards, and where to find the lists of permitted uses and special rules. All items below are drawn from the Rosemead Zoning Code; see the Source References for exact code locations. See the city's rules on parking and the city's development standards for detailed site-level standards referenced here.

Core rules you must know up front

The city’s list of base zones and overlays is established in § 17.08.010 and shown on the Official Zoning Map adopted by reference in § 17.08.020.
Where a zone boundary is unclear, the Code gives rules for interpreting the map in § 17.08.030.
The Code ranks base zones by restrictiveness in § 17.08.060 (useful when comparing allowable uses).
Overlay rules (Design Overlay, RC‑MUDO, etc.) supplement base zones; see Chapter 17.28. Overlay rules and design review requirements are commonly triggered.

District-by-district breakdown

Below each bolded district name I summarize purpose, typical permitted uses (where the Code lists them), key dimensional standards, and where that district is applied or further limited. Code citations follow each subsection.

Notes about permitted uses: the Zoning Code provides use tables (for example, residential uses are in § 17.12.020, commercial uses in § 17.16.020, industrial uses in § 17.20.020, and the Garvey Avenue Specific Plan uses in § 17.21.020). When I cite a use table I am pointing you to the specific table that lists whether a use is Permitted (P), Accessory (A), Administrative Use Permit (AUP) or Conditional Use Permit (CUP).

R-1 (Single‑Family Residential)

Purpose: Protect low-density, single-family neighborhoods and implement the General Plan's Low Density Residential designation. § 17.12.010.
Typical permitted uses: Single‑family dwellings (P), Accessory Dwelling Units (P) (subject to ADU rules), public schools and limited public uses; see § 17.12.020 (Table 17.12.020.1).
Key dimensional standards: front/side/rear yard and height standards are in Table 17.12.030.1 and the Residential District Development Standards (see § 17.12.030) — commonly 2 stories / 30 ft height limit in many R zones and specified front/side/rear yard minimums. See development standards.
Where it applies: city neighborhoods mapped R‑1 on the Official Zoning Map; the Garvey Avenue Specific Plan may supersede R‑1 inside its boundary. § 17.08.010 and § 17.04.020(C).

R-2 (Light Multiple Residential)

Purpose: Medium‑density two‑family and small multi‑family development. § 17.12.010.
Typical permitted uses: Two‑family dwellings (P), ADUs (P), small multi‑family (often requires discretionary review depending on scale). See § 17.12.020.
Key dimensional standards: set out in § 17.12.030 (Table 17.12.030.1); note interior side yard minima, combined side yard totals, and rear yard rules that vary by unit count and building size.

R-3 (Medium Multiple Residential)

Purpose: Higher‑density multifamily housing; transit‑oriented and larger apartment developments. § 17.12.010.
Typical permitted uses: Multi‑family dwellings (in many cases discretionary), residential care, supportive/transitional housing (P); see § 17.12.020.
Key dimensional standards: Table 17.12.030.1 includes up to 3 stories / 35 ft in some cases, open-space per‑unit requirements, building separation rules, and parking per Chapter 17.112. Also transit measures are required for R‑3 projects (§ 17.16.030.M).

P‑O (Professional Office)

Purpose: Office and professional services consistent with General Plan Commercial. § 17.16.010.
Typical permitted uses: Offices, limited retail/service uses as accessory (precise uses listed in § 17.16.020, Table 17.16.020.1).
Key standards: minimum lot area 10,000 sq. ft., front setback 10 ft., height up to 50 ft. (Table 17.16.030.1). Site plan and design review may be required for larger projects (§ 17.16.030).

C-1, C-3, C-4 (Neighborhood, Medium, Regional Commercial)

Purpose: Serve neighborhood retail and services (C‑1), community/medium commercial (C‑3), and high‑intensity/regional centers (C‑4). § 17.16.010.
Typical permitted uses: Retail, restaurants (often CUP for alcoholic sale), personal services, convenience retail — uses tabulated in § 17.16.020 (Table 17.16.020.1). CUP/AUP status depends on use and zone.
Key standards: See Table 17.16.030.1; for example minimum lot areas vary (C‑1 5,000 sq. ft., C‑3 5,000 sq. ft., C‑4 larger), height ranges from 35 ft (C‑1) to 75 ft (C‑3/C‑4), and setbacks vary with adjacency to residential. Parking per Chapter 17.112. § 17.16.030.

CBD (Central Business District)

Purpose: Medium‑scale retail, restaurants and civic/cultural uses along Valley Boulevard and the civic center. § 17.16.010.
Typical permitted uses: Retail and service uses oriented to pedestrian activity; use table is in § 17.16.020.
Key standards: Table 17.16.030.1 indicates lot min. 5,000 sq. ft., height up to 75 ft, but building frontage/setback and design requirements emphasize pedestrian orientation. Design review often applies.

CI‑MU (Commercial/Industrial Mixed‑Use) and M‑1 (Light Manufacturing)

Purpose: CI‑MU for mixed commercial/industrial that emphasizes office/tech and light manufacturing; M‑1 for light manufacturing, assembly and industrial parks. § 17.20.010.
Typical permitted uses: Manufacturing, R&D, warehousing, compatible office uses — see § 17.20.020 (Table 17.20.020.1). Many industrial uses are Permitted (P) in M‑1; some require CUP in CI‑MU.
Key standards: Min lot sizes (CI‑MU 20,000 sq. ft., M‑1 1 acre), heights up to 50 ft (CI‑MU) and 75 ft (M‑1), and performance standards for noise, emissions and stormwater in § 17.20.020/17.20.030. Parking per Chapter 17.112.

P (Automobile Parking)

Purpose: Dedicated parking lots/structures to serve shared parking needs. § 17.24.010(B).
Typical permitted uses: Public parking, shared commercial/residential parking facilities as allowed in Table 17.24.020.x. § 17.24.020.
Key standards: Table 17.24.030.2 sets minimum lot widths/area, setbacks (front 10 ft, side 10 ft, rear 10 ft) and height limits in some contexts; also off‑street parking must conform to Chapter 17.112.

P‑D (Planned Development)

Purpose: Flexible zone for master‑planned residential, commercial, industrial or mixed projects that offer design amenities and site‑specific solutions. § 17.24.010(C).
Typical permitted uses: Any use consistent with an approved Precise Plan / Development Plan; P‑D may be used where unique design/amenity tradeoffs are necessary. § 17.24.030 (process and standards).
Key standards: Minimum area 1 acre for a P‑D (exceptions possible), mandatory development plan, possible CC&R requirements, and tailored setbacks/heights in Table 17.24.030.2. § 17.24.030.

O‑S (Open Space)

Purpose: Parks, streams, and resource protection. § 17.24.010(A).
Typical permitted uses: Public parks, passive and active recreation consistent with open space goals; permitted uses are listed in § 17.24.020.

Overlays: D‑O (Design Overlay) and RC‑MUDO (Residential/Commercial Mixed‑Use Development Overlay)

Purpose: Overlays modify base‑zone standards to require higher design quality or enable mixed‑use. The overlay definitions and purposes are in Chapter 17.28 (including § 17.28.010 for purpose and individual overlay descriptions). Overlay districts and design review often apply.
Effects: Overlays may impose additional use restrictions, design guidelines, or lower/higher numeric standards; if an overlay is silent, the base zone applies. See § 17.28.010.

Garvey Avenue Specific Plan (GSP) zones (GSP‑OS/P, GSP‑R/C, GSP, GSP‑MU)

Purpose: District‑specific rules covering Garvey Avenue corridor — the Specific Plan creates its own land‑use districts and development standards in Chapter 17.21 and supersedes Title 17 where specified (§ 17.04.020(C)).
Typical uses and standards: Table 17.21.020.1 lists permitted uses; Table 17.21.030.1 contains development standards (lot sizes, densities, FARs, parking and frontage rules). GSP‑MU allows incentivized mixed‑use (horizontal and vertical) with community benefit incentives (see Table 3.6 and GSP tables). § 17.21.020 – § 17.21.030.

Quick reference table — decision‑relevant standards at a glance

District (map symbol)	Typical permitted uses (high level)	Key numeric standards (typical)	Code reference
R‑1	Single‑family dwellings; ADUs (P)	Height commonly 2 stories / 30 ft; setbacks per Table 17.12.030.1	§ 17.12.020, § 17.12.030
R‑2	Two‑family, ADUs, small multi‑family	Setbacks and combined side yard rules in Table 17.12.030.1	§ 17.12.020, § 17.12.030
R‑3	Multi‑family dwellings; supportive housing	Open space per‑unit, up to 3 stories / 35 ft (varies)	§ 17.12.020, § 17.12.030
C‑1 / C‑3 / C‑4	Retail, restaurants, services (P/CUP)	Lot min 5,000 sq.ft. (C‑1/C‑3); height 35–75 ft; setbacks vary	§ 17.16.020, § 17.16.030
CBD	Pedestrian retail, culture, restaurants	Height up to 75 ft; pedestrian frontage standards	§ 17.16.010, § 17.16.030
CI‑MU / M‑1	Light industry, R&D, warehouse, compatible office	Min lot CI‑MU 20,000 sf, M‑1 1 acre; heights 50/75 ft	§ 17.20.020, § 17.20.030
P‑D	Project‑specific residential/commercial/industrial	Min P‑D area 1 acre; site‑specific standards in approved plan	§ 17.24.030
O‑S	Parks, streams, open space	Setbacks & build limits in Table 17.24.030.2	§ 17.24.010 / § 17.24.030
P	Public / shared parking facilities	Setbacks in Table 17.24.030.2; refer to Chapter 17.112 for parking layout	§ 17.24.030, Chapter 17.112
RC‑MUDO	Mixed residential/commercial overlay	Overlay adds mixed‑use design standards and pedestrian emphasis	Chapter 17.28 (overlay rules)
GSP (Garvey)	Corridor-specific retail/mixed use per SP tables	GSP tables set lot sizes, density, FAR and ground-floor standards	§ 17.21.020 – § 17.21.030

(Use tables in the cited sections for complete, parcel‑level use lists and exact numeric ranges — see Source References.)

Checklist — what an applicant must satisfy when proposing development in Rosemead

Confirm the parcel’s base zone and overlays on the Official Zoning Map and apply § 17.08.020 interpretation rules if boundaries are unclear.
Verify whether the proposed use is listed as P/A/AUP/CUP in the appropriate table (§ 17.12.020, § 17.16.020, § 17.20.020, § 17.21.020).
Confirm dimensional standards from the applicable development standards table (e.g., § 17.12.030, § 17.16.030, § 17.20.030, Table 17.24.030.2).
Evaluate overlay triggers (Design Overlay, RC‑MUDO, GSP) and prepare associated design submittals; see Chapter 17.28 and Chapter 17.21. Design review required in many commercial and overlay cases.
Prepare parking and loading consistent with Chapter 17.112 and the zone’s parking table. Parking.
If proposing ADUs, follow § 17.30.190 (ADU section) and state ADU law as applicable. ADUs.
For any nonstandard numeric relief, determine whether a Minor Exception (Director/PC) § 17.142.020, Variance or Conditional Use Permit is required.

Risks & Ambiguities

Issue	Why it matters	What to verify
Zoning map boundary ambiguity	The map is adopted by reference; small map errors change the base zone and allowed uses	Check § 17.08.030 for boundary interpretation rules and request a City map clarification if parcel lines are unclear (verify with the City Clerk).
Overlay vs base‑zone precedence	Overlays or Specific Plans can override base zone rules, changing allowed uses or standards	Confirm whether the property lies in a Design Overlay, RC‑MUDO, or the GSP; see Chapter 17.28 and § 17.04.020(C).
Variable height adjacent to residential	Commercial/industrial heights are constrained where they abut R‑1/R‑2 by inclined‑plane rules	Apply the variable height/plane rules in § 17.08.050(I) early in design to avoid redesign.
Permitted vs CUP/AUP status	A use may be listed with different permit requirements depending on zone (P vs CUP) — affects timeline	Always check the specific use table for the zone (e.g., § 17.16.020, § 17.20.020, § 17.12.020). If a CUP/AUP is required, expect hearings.
Specific Plan inconsistencies	GSP contains its own tables and may supersede Title 17 where stated	Read Chapter 17.21 and the Garvey Avenue Specific Plan tables; where GSP is silent Title 17 applies. § 17.21.030 and § 17.04.020(C).

Plain‑English Summary

Rosemead’s Title 17 divides the city into named zones (R‑1, R‑2, R‑3, P‑O, C‑1, C‑3, C‑4, CBD, CI‑MU, M‑1, P, P‑D, O‑S) and overlays (D‑O, RC‑MUDO) with use tables and numeric development standards; the Official Zoning Map (and the Garvey Avenue Specific Plan where applicable) controls which rules apply to each parcel. Check the use table for your parcel to see whether your project is Permitted, requires an Administrative Use Permit, or a Conditional Use Permit and apply the dimensional tables and overlay rules early in design. § 17.08.010 – § 17.08.020, Tables and individual district chapters.

Source References

Rosemead Zoning Code, Article 2 (Zoning districts) and Table of Zoning Districts, § 17.08.010, Official Zoning Map § 17.08.020.
Interpretation of zone boundaries § 17.08.030.
Hierarchy of restrictiveness § 17.08.060.
Residential districts: Purpose and uses (§ 17.12.010, § 17.12.020, Table 17.12.030.1).
Commercial districts: Purpose, use table and development standards (§ 17.16.010, § 17.16.020, § 17.16.030).
Commercial/Industrial districts: § 17.20.010, § 17.20.020, § 17.20.030.
Special purpose districts (P, O‑S, P‑D) Chapter 17.24 and Table 17.24.030.2.
Overlay zones, Design Overlay and RC‑MUDO Chapter 17.28.
Garvey Avenue Specific Plan zoning, uses and standards Chapter 17.21 (Tables 17.21.020.1 & 17.21.030.1) and GSP incentive tables.
ADU provisions: § 17.30.190 (Accessory Dwelling Units). ADUs.
Design review / site plan rules: Chapter 17.136 (application requirements and review criteria). Design review.
Parking and loading requirements referenced throughout: Chapter 17.112. Parking.

(These source references are drawn from the City of Rosemead Zoning Code print export.)

Sources

Retrieved passages

Rosemead Zoning Code (§ 5) High relevance
CFC § 4 (§ 4) High relevance
Rosemead Zoning Code (§ 5) High relevance
Rosemead Zoning Code (Title 17) High relevance
Rosemead Zoning Code (§ 5) High relevance
Rosemead Zoning Code (Chapter 17.112) High relevance
Rosemead Zoning Code (§ 5) High relevance
Rosemead Zoning Code (Title 17) Medium relevance
Rosemead Zoning Code (§ 5) High relevance
Rosemead Zoning Code (Chapter 17.28) High relevance
Rosemead Zoning Code (Chapter 17.32) High relevance
Rosemead Zoning Code (Title 5) High relevance
Rosemead Zoning Code (Title 5) High relevance
Rosemead Zoning Code (Title 5) High relevance
Rosemead Zoning Code (section shall) High relevance

Cited sections

Official Rosemead code library

Frequently asked questions

What can I build on an R‑1 lot in Rosemead?

In R‑1 you may build a single‑family dwelling and permitted accessory uses; Accessory Dwelling Units (ADUs) are permitted subject to § 17.30.190 and the R‑1 standards in § 17.12.030. Always check the use table in § 17.12.020 for accessory use rules and parking requirements. § 17.12.020, § 17.30.190

What are Rosemead setback requirements for residential lots?

Residential setbacks are recorded in the Residential District Development Standards (Table 17.12.030.1) and implemented through § 17.12.030; front, side and rear yard minima vary by R‑1/R‑2/R‑3 and by building size (see Table 17.12.030.1). Check the table for parcel‑specific numbers and for special small‑lot rules. § 17.12.030

Do I need design review for a commercial project?

Many commercial projects are subject to site plan and design review: the Code requires applications for new commercial development or large additions in P‑O, C‑1, C‑3, and CBD in § 17.16.030 and Chapter 17.136; smaller projects may be staff‑level reviewed. Design review. § 17.16.030, § 17.136.040

Where is the Official Zoning Map and what if a boundary is unclear?

The Official Zoning Map is adopted by reference and on file with the City Clerk per § 17.08.020; if boundaries are uncertain use the interpretation rules in § 17.08.030 (street/lot lines and map scale determine boundaries) or request City clarification. § 17.08.020, § 17.08.030

If my lot borders an R‑1 zone, how high can a commercial building be?

Commercial and other nonresidential zones abutting R‑1/R‑2 have a variable height limitation using an inclined plane described in § 17.08.050(I); the plane commonly starts at a specified height and projects at 60 degrees from a setback line — apply this early in design. § 17.08.050(I)

Are ADUs allowed citywide in Rosemead?

ADUs are allowed where the underlying zone permits residential development (R‑1, R‑2, R‑3 and other residential or multifamily zones) and are governed by the city ADU rules in § 17.30.190; the Code authorizes administrative approvals subject to objective standards. ADUs. § 17.30.190

What’s required for an industrial use in CI‑MU or M‑1?

Industrial uses are listed in Table 17.20.020.1 with P/CUP/AUP status and must meet the performance standards (noise, emissions, stormwater) and site plan/design review triggers in § 17.20.020 and § 17.20.030; parking and loading follow Chapter 17.112. § 17.20.020, § 17.20.030

Is the Garvey Avenue Specific Plan different from the base zoning?

Yes — the GSP establishes its own land‑use districts and development standards in Chapter 17.21; where the GSP conflicts with Title 17, the GSP rules prevail (§ 17.04.020(C)). See GSP tables for permitted uses and parking/density/FAR allowances. § 17.21.020, § 17.04.020(C)

Can I reduce a setback or parking requirement administratively?

Minor exceptions up to 20% for rear/side yard, lot coverage, driveway or parking stall sizes may be granted by the Community Development Director under the Minor Exception provisions (see § 17.142.020); larger deviations require Planning Commission action or a variance. § 17.142.020

Who approves a Planned Development (P‑D) zone?

A P‑D is approved through the City's development plan process; the P‑D has its own required submittals, minimum area (1 acre) and may include CC&R requirements; see § 17.24.030 for P‑D development standards and approval conditions. § 17.24.030

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