La Mirada — Land Use

Overview

La Mirada regulates land use through Title 21 of the Municipal Code, which assigns each parcel a base zoning district and, in some cases, overlay designations shown on the adopted zoning map on file with the Planning Division (§ 21.16.020). Uses are allowed only as the zoning code expressly provides—by-right, as accessory, with a conditional use permit (CUP), or prohibited—and dimensional standards (setbacks, height, lot area, FAR) vary by district (§ 21.18.020; § 21.18.030; § 21.20.050; § 21.22.030). Projects must also comply with citywide standards like parking, landscaping and screening, and signage where applicable (§ 21.20.100; § 21.22.090; § 21.66.020).

Bottom line: In La Mirada, a use is legal only if it appears in the district’s use table (or is determined “similar”)—otherwise it’s prohibited (§ 21.18.020; § 21.106.020).

How La Mirada’s districts are organized

• The zoning map and district roster are adopted and maintained by the Planning Division (§ 21.16.020).
• Base districts include residential (R-1-6,000, R-1-7,500, R-1-8,000, R-1-10,000, R-1-15,000, R-3, R-4), commercial (C-O, C-1, C-4, C-F), industrial (M-2), and O-S (Open Space). There are also planned development and specific plan tools (PUD-#, SP-#, IHSP) and several overlays (e.g., -ESO, -MH, -O, -SHO) (Table 21.16.010 in § 21.16.020).
• If a use is not listed for a district, it’s prohibited unless the Planning Commission finds it “similar” to a listed use (§ 21.106.020). CUPs are available only where the code expressly allows them for that district (§ 21.110.010(c)).
• Dimensional rules are measured per the code’s measurement chapters—for example, front, side, and rear setbacks are measured at right angles from the relevant property line, with special rules for corner/flag/through lots (§ 21.78.030), and height is measured per § 21.64.010.

Residential districts — permitted uses and key standards

La Mirada’s residential use permissions are set by Table 21.18.020; highlights appear below. Development standards by district are in Table 21.18.030.

R-1-6,000 (Single-Family Residential – 6,000 sf)

• Purpose/context: Implements Low Density Residential; mapped per the city’s zoning map (§ 21.16.020/Table 21.16.010).
• Typical permitted uses: Detached single-family (P); small family day care and group home (≤6 residents) (P); transitional/supportive housing (P). Places of worship, child day care facility, community center, guest house, utility/public service require CUP. Duplex and attached (3+ units) are prohibited (X) (§ 21.18.020).
• ADUs/JADUs: Allowed subject to objective standards; see summary below and ADUs (§ 21.18.060).
• Key dimensional standards: Lot min 6,000 sf, lot width 60 ft, lot coverage 40%; setbacks: front 20 ft, side 5 ft, street side 10 ft, rear 15 ft; height: 35 ft main, 15 ft accessory (§ 21.18.030).
• Notes: In R-1, listed setbacks apply to first floors; second-story setbacks have additional rules (see notes to Table 21.18.030). Setback measurement rules appear in § 21.78.030.

R-1-7,500

• Uses: Same pattern as R-1-6,000 (§ 21.18.020).
• Standards: Lot min 7,500 sf, width 75 ft, coverage 40%; front 20 ft, side 5 ft, street side 10 ft, rear 15 ft; 35 ft main, 15 ft accessory (§ 21.18.030).

R-1-8,000

• Uses: Same pattern as R-1-6,000 (§ 21.18.020).
• Standards: Lot min 8,000 sf, width 75 ft, coverage 40%; front 20 ft, side 5 ft, street side 10 ft, rear 15 ft; 35 ft main, 15 ft accessory (§ 21.18.030).

R-1-10,000

• Uses: Same pattern as R-1-6,000 (§ 21.18.020).
• Standards: Lot min 10,000 sf, width 90 ft, coverage 40%; front 20 ft, side 10 ft, street side 15 ft, rear 15 ft; 35 ft main, 15 ft accessory (§ 21.18.030).

R-1-15,000

• Uses: Same pattern as R-1-6,000 (§ 21.18.020).
• Standards: Lot min 15,000 sf, width 100 ft, coverage 40%; front 20 ft, side 10 ft, street side 15 ft, rear 15 ft; 35 ft main, 15 ft accessory (§ 21.18.030).

R-3 (Medium Density Residential)

• Purpose/context: Implements Medium Density Residential; mapped per the zoning map (§ 21.16.020/Table 21.16.010).
• Typical permitted uses: Detached single-family, duplex, attached 3+ units (P); public schools, parks, small family day care, group home (≤6), transitional/supportive housing (P). SRO, mobile home park, places of worship, child day care facility, community center, guest house, utility/public service require CUP. Low-barrier navigation center is permitted (P) (§ 21.18.020).
• Key dimensional standards: Lot min 6,000 sf, width 60 ft, coverage 50%; setbacks: front 20 ft, side 5 ft, street side 10 ft, rear 15 ft. Height 50 ft, but ≤35 ft within 50 ft of single-family property; required rear yard area may be used for parking/carports/garages. Open space: 500 sf/unit (up to 75% may be common; balconies of 10' x 6' may credit) (§ 21.18.030 notes).

R-4 (High Density Residential)

• Purpose/context: Implements High Density Residential; mapped per the zoning map (§ 21.16.020/Table 21.16.010).
• Typical permitted uses: Detached single-family, duplex, attached 3+ units (P); office/support facilities as accessory (A) in conjunction with multi-family; SRO requires CUP; similar CUPs as R-3 for institutions and facilities. Low-barrier navigation center is permitted (P) (§ 21.18.020).
• Key dimensional standards: Lot min 10,000 sf, width 60 ft, coverage 50%; setbacks: front 15 ft, side 10 ft, street side 10 ft, rear 20 ft. Height 50 ft, but ≤35 ft within 50 ft of single-family property. Open space: 400 sf/unit (credits as in R-3) (§ 21.18.030 and notes).

Commercial districts — development standards

Use permissions for commercial districts are not included in the provided materials (Not found in source materials). Dimensional and intensity standards below apply citywide in each district (§ 21.20.050), with additional citywide regulations such as parking, landscaping and screening, and signage also applying (§ 21.20.100; § 21.66.020).

C-O (Administrative Office)

• Purpose/context: Administrative office uses (implements Commercial GP designation); mapped per the zoning map (§ 21.16.020/Table 21.16.010).
• Key standards: Setbacks front 10 ft, street side 10 ft, interior side 5 ft (10 ft if abutting residential), rear 10 ft; height 50 ft (but ≤35 ft within 50 ft of residential); lot coverage 50%; FAR 1.0 (§ 21.20.050).

C-1 (Neighborhood Commercial)

• Key standards: Setbacks front 10 ft, street side 10 ft, interior side 5 ft (10 ft if abutting residential), rear 10 ft; height 25 ft (and ≤35 ft within 50 ft of residential per note); lot coverage 50%; FAR 0.40 (§ 21.20.050).

C-4 (General Commercial)

• Key standards: Setbacks front 50 ft, street side 0 ft, interior side 0 ft (10 ft if abutting residential), rear 0 ft; height 35 ft (and ≤35 ft within 50 ft of residential per note); lot coverage 50%; FAR 1.0 (§ 21.20.050).

C-F (Freeway Commercial)

• Key standards: Setbacks front 50 ft, street side 20 ft, interior side 10 ft, rear 20 ft; height up to 6 stories; FAR 2.0 (§ 21.20.050).

Industrial district — purpose and standards

M-2 (Industrial)

• Purpose/context: Provides areas for a wide range of industrial, manufacturing, and support uses while minimizing adverse impacts on neighbors (§ 21.22.010).
• Key standards: Setbacks front 20 ft, street side 20 ft, interior side 0 ft (but 20 ft if abutting residential, school, park, playground, or street), rear 0 ft (same 20 ft adjacency rule); height 60 ft (but ≤20 ft within 50 ft of any residential property); lot coverage 50%; FAR 1.0 (§ 21.22.030).
• Citywide regs that also apply: Accessory uses, fences/walls, height, landscaping, parking/loading, performance standards, property maintenance, signs, and yard requirements (§ 21.22.090).

Open space and special zoning tools

O-S (Open Space)

• Purpose/context: Implements Parks/Open Spaces and Public/Institutional designations; mapped per the zoning map (Table 21.16.010 in § 21.16.020).
• Allowed uses/standards: Not found in source materials.

PUD-# (Planned Unit Development)

• Applicability: May be applied to land under single/unified control with a minimum planning area of 1 acre (§ 21.116.020). Implements any GP land use (Table 21.16.010 in § 21.16.020).
• Use mix/standards: Established through the PUD; Verify with the jurisdiction (not specified in source materials).

SP-# / IHSP (Specific Plans; Imperial Highway Specific Plan)

• Context: Specific plan zones implement various GP designations (Table 21.16.010 in § 21.16.020). Within the Imperial Highway Specific Plan, projects follow that plan’s standards where applicable (§ 21.37.060(a)(2)).
• Use permissions/standards: Not found in source materials (beyond the reference above).

Overlay districts — where they modify land use

Overlays adjust or add rules to the base zone where mapped on the city’s zoning map (§ 21.16.020).

Mixed Use Overlay

• Height: Up to 3 stories, with design to avoid excessive bulk for 3-story buildings (§ 21.37.060(a)(1)).
• Open space: 25% of gross residential floor area as usable open space; may be above ground level (balconies/decks) (§ 21.37.060(b)(1)).
• Setbacks/parking: Use the base zone’s yard and parking requirements (§ 21.37.060(b)(2)–(c)).
• ADUs: ADUs are also permitted in the Mixed Use Overlay where otherwise allowed (§ 21.18.060(c)(1)).
• Relationship to IHSP: Parcels in the IHSP follow that plan’s standards (§ 21.37.060(a)(2)).

-ESO (Emergency Shelter Overlay); -A (Farm Animal); -F (Flood Hazard Zone); -MH (Mobile Home Park); -O (Oil Drilling); -SHO (Special Housing Overlay)

• Summary: Identified on Table 21.16.010; detailed use permissions/standards are not provided in the source materials. Verify with the jurisdiction.

Accessory Dwelling Units (ADUs) — land use permissions

• Where allowed: R-1, R-3, R-4, PUD, Mixed Use Overlay, and Special Housing Overlay (§ 21.18.060(c)(1)).
• Numbers:
  • On single-family lots: One ADU (attached or within an existing structure), one detached ADU, and one JADU may be allowed, subject to criteria (§ 21.18.060(c)(2)(A)).
  • On multi-family lots: Conversion ADUs up to 25% of existing units (min 1) within non-livable areas; plus up to 8 detached ADUs, not to exceed number of primary units (§ 21.18.060(c)(2)(B)–(C)).
• Setbacks: Generally 4 ft rear/interior side; front per base zone unless that would prohibit at least an 800 sf ADU. At least 10 ft between on-site structures, wall-to-wall (§ 21.18.060(c)(3)).
• Height: Unless otherwise stated, max 2 stories and 25 ft to top of roof pitch (§ 21.18.060(c)(7)). Additional standards apply to second-story ADUs over garages (§ 21.18.060(c)(8)).
• Design: Objective standards for site design, open space (min 100 sf per unit), articulation, and privacy apply to ADUs/JADUs/primary-secondary units (§ 21.18.080).
• Ministerial review: ADUs/JADUs are approved ministerially via Site Plan Review (§ 21.18.060(b)).

Note: Separate, older ADU provisions exist in § 21.54.010–.020 and differ on some metrics (e.g., height). See “Risks & Ambiguities.”

Objective design standards for multifamily and mixed-use housing

For qualifying “housing development projects” and mixed-use housing (e.g., SB 35 streamlining or other ministerial pathways), La Mirada applies objective design standards in addition to base-zone rules. These include requirements for vehicular access limits, pedestrian pathways (4 ft min width), and open space (150 sf/unit for projects with 10+ units), among others (§ 21.18.090). Review is ministerial and based on consistency with adopted objective standards (§ 21.18.090(a)(4)). Coordinate early with Design Review.

Conditional use permits (CUPs)

• Purpose: To allow certain uses only where compatible with surrounding uses and with conditions to mitigate impacts (§ 21.110.010(a)–(b)).
• Eligibility: CUPs may be sought only for uses identified as CUP-eligible in the applicable district. A CUP is not a substitute for a zone change or text amendment (§ 21.110.010(c)).
• Processing/issuance: Processed under the code’s quasi-judicial permit procedures (§ 21.110.020); approval is effective after a 10-day appeal period expires (§ 21.110.060). See also Variances and Exceptions for relief from standards (if applicable).

Nonconforming uses and structures

• Continuation: A lawfully established use/structure that predates current rules may continue, subject to Article IX limits; expansion/modification is restricted unless allowed by that Article (§ 21.08.030). See Nonconforming Uses.
• CUP path: Some nonconforming uses may be eligible to seek a CUP or other approval to achieve conforming status (§ 21.130.170).

Selected residential land-use permissions (high-impact items)

Legend: P = Permitted; CUP = Conditional Use Permit; LDC = Large Day Care Permit; A = Accessory Use; X = Prohibited

Key dimensional standards snapshot (selected)

• The R-1 districts share a 20 ft front setback and 35 ft height for main structures; side yards are 5 ft (R-1-6/7.5/8) or 10 ft (R-1-10/15), rear yards 15 ft, and 40% lot coverage (§ 21.18.030).
• R-3: Front 20 ft, side 5 ft, rear 15 ft; 50 ft height (≤35 ft within 50 ft of single-family); 500 sf open space per unit; 50% lot coverage (§ 21.18.030).
• R-4: Front 15 ft, side 10 ft, rear 20 ft; 50 ft height (≤35 ft near single-family); 400 sf open space per unit; 50% lot coverage (§ 21.18.030).
• Commercial/Industrial: See district-specific standards above (§ 21.20.050; § 21.22.030). Yard measurements and exceptions are governed by § 21.78.030; height measurement by § 21.64.010.

Other land-use mechanics to know

• Lot definitions (e.g., corner, flag, through lots) and “lot coverage” affect how setbacks and coverage are applied (§ 21.200.130).
• Citywide standards for parking/loading (§ 21.68), landscaping (§ 21.66.020), signs (§ 21.76), and performance standards (e.g., for recycling/processing operations) may condition whether and how a use can operate (§ 21.20.100; § 21.22.090; § 21.50.040).
• Density bonus: Projects seeking a state density bonus must submit an Affordable Housing Implementation Plan (§ 21.128.020). See also California housing laws.

Checklist

• Identify the parcel’s base district and any overlays on the city’s zoning map (§ 21.16.020; Table 21.16.010). See La Mirada Zoning.
• Confirm the proposed use appears as permitted, accessory, or CUP in the district’s land-use table (residential: § 21.18.020). If unlisted, consider a “similar use” determination (§ 21.106.020).
• Verify dimensional standards (lot area/width, setbacks, height, lot coverage/FAR) for the district (§ 21.18.030; § 21.20.050; § 21.22.030) and apply measurement rules (§ 21.78.030; § 21.64.010).
• Check overlay-specific rules (e.g., Mixed Use Overlay: height/open space; base-zone yards/parking) (§ 21.37.060). See Overlay Districts.
• Apply citywide standards for parking, landscaping and screening, and signage (§ 21.20.100; § 21.22.090; § 21.66.020).
• For ADUs/JADUs, confirm eligibility, counts, setbacks (4 ft side/rear typical), and height (≤25 ft unless otherwise stated) with ministerial review (§ 21.18.060; § 21.18.080).
• Determine whether a CUP is required for the use and follow CUP processing/appeal timelines (§ 21.110.010; § 21.110.020; § 21.110.060).
• If nonconforming, confirm what changes are allowed; consider paths to conformity or special approvals (§ 21.08.030; § 21.130.170). See Nonconforming Uses.

Risks & Ambiguities

Plain-English Summary

Your land use in La Mirada depends on your zoning district and any overlays. Single-family zones (R-1) allow one home per lot with setbacks like 20 ft front and 5–10 ft sides; multifamily zones (R-3/R-4) allow duplexes and apartments with larger buildings and open-space minimums. Commercial and industrial districts have their own setbacks, FAR, and height caps, with added limits near homes. ADUs are broadly allowed with 4 ft side/rear setbacks and ministerial review. If a use needs a CUP, the Planning Commission can add conditions.

Source References

• § 21.16.020 (Zoning map adoption; Table 21.16.010 district list)
• § 21.18.020 (Permitted uses in residential districts)
• § 21.18.030 (Residential development standards and notes)
• § 21.18.060 (Accessory Dwelling Units)
• § 21.18.080 (Objective design standards for ADUs/JADUs/PDUs/SDUs)
• § 21.18.090 (Objective design standards for multifamily/mixed-use housing)
• § 21.20.050 (Commercial development standards)
• § 21.20.100 (Commercial — other applicable regulations)
• § 21.22.010 (M-2 purpose)
• § 21.22.030 (M-2 development standards)
• § 21.22.090 (M-2 — other applicable regulations)
• § 21.37.060 (Mixed Use Overlay development standards)
• § 21.66.020 (Landscaping applicability)
• § 21.78.010; § 21.78.030 (Setback purpose and measurement)
• § 21.64.010 (Height measurement)
• § 21.106.020 (Unlisted “similar uses” provision)
• § 21.110.010; § 21.110.020; § 21.110.060 (CUP purpose, processing, issuance)
• § 21.08.030 (Continuation of legal nonconforming uses/structures)
• § 21.130.170 (Nonconforming use eligible for CUP)
• § 21.116.020 (PUD applicability)
• § 21.128.020 (Density Bonus implementation plan)
• § 21.200.130 (Key definitions: landscaping, lot, lot coverage, etc.)
• § 21.50.040 (Representative performance standards for processing centers)
• La Mirada Zoning Ordinance (Title 21), codelibrary.amlegal.com

Source passages

• La Mirada Zoning Code (§ 21.16.020) High relevance show source text
• La Mirada Zoning Code (§ 21.18.080) High relevance show source text
• La Mirada Zoning Code (§ 21.18.060) High relevance show source text
• La Mirada Zoning Code (§ 21.110.010) Medium relevance show source text
• La Mirada Zoning Code (§ 21.18.030) Medium relevance show source text
• La Mirada Zoning Code (§ 21.18.090) Medium relevance show source text
• La Mirada Zoning Code (§ 21.200.130) Medium relevance show source text
• La Mirada Zoning Code (§ 21.78.030) Medium relevance show source text
• La Mirada Zoning Code (§ 21.20.050) Medium relevance show source text
• La Mirada Zoning Code (§ 21.22.010) Medium relevance show source text
• La Mirada Zoning Code (§ 21.116.020) Medium relevance show source text
• La Mirada Zoning Code (§ 21.54.010) Medium relevance show source text
• La Mirada Zoning Code (§ 21.130.170) Medium relevance show source text
• La Mirada Zoning Code (§ 21.37.060) Medium relevance show source text
• La Mirada Zoning Code (§ 21.54.020) Medium relevance show source text
• La Mirada Zoning Code (§ 21.110.060) Medium relevance show source text

Cited sections

• § 21.16.020 (Zoning map adoption; Table 21.16.010 district list) (§ 21.16.020)
• § 21.18.020 (Permitted uses in residential districts) (§ 21.18.020)
• § 21.18.030 (Residential development standards and notes) (§ 21.18.030)
• § 21.18.060 (Accessory Dwelling Units) (§ 21.18.060)
• § 21.18.080 (Objective design standards for ADUs/JADUs/PDUs/SDUs) (§ 21.18.080)
• § 21.18.090 (Objective design standards for multifamily/mixed-use housing) (§ 21.18.090)
• § 21.20.050 (Commercial development standards) (§ 21.20.050)
• § 21.20.100 (Commercial — other applicable regulations) (§ 21.20.100)
• § 21.22.010 (M-2 purpose) (§ 21.22.010)
• § 21.22.030 (M-2 development standards) (§ 21.22.030)
• § 21.22.090 (M-2 — other applicable regulations) (§ 21.22.090)
• § 21.37.060 (Mixed Use Overlay development standards) (§ 21.37.060)
• § 21.66.020 (Landscaping applicability) (§ 21.66.020)
• § 21.78.010; § 21.78.030 (Setback purpose and measurement) (§ 21.78.010)
• § 21.64.010 (Height measurement) (§ 21.64.010)
• § 21.106.020 (Unlisted “similar uses” provision) (§ 21.106.020)
• § 21.110.010; § 21.110.020; § 21.110.060 (CUP purpose, processing, issuance) (§ 21.110.010)
• § 21.08.030 (Continuation of legal nonconforming uses/structures) (§ 21.08.030)
• § 21.130.170 (Nonconforming use eligible for CUP) (§ 21.130.170)
• § 21.116.020 (PUD applicability) (§ 21.116.020)
• § 21.128.020 (Density Bonus implementation plan) (§ 21.128.020)
• § 21.200.130 (Key definitions: landscaping, lot, lot coverage, etc.) (§ 21.200.130)
• § 21.50.040 (Representative performance standards for processing centers) (§ 21.50.040)
• La Mirada Zoning Ordinance (Title 21), codelibrary.amlegal.com (Title 21)

• Official La Mirada code library