Local zoning · Los Angeles County

Los Angeles County — Landscaping and Screening

Q: What can I build on an R‑1 lot in Los Angeles County and what landscaping is required?

You can build uses allowed in R‑1 (single‑family) per Title 22 for unincorporated areas; the required front yard and street‑fronting setbacks must be landscaped with drought‑tolerant/native plants and be irrigated as required by Chapter 22.126 ; fences in the front yard are typically limited to 3.5 ft and side/rear fences 6 ft maximum per § 22.110.070 . Cite: § 22.110.070 and Chapter 22.126

Q: What fence and wall heights are allowed along the front yard and property lines?

Fences in a required front yard are typically limited to 3.5 feet (with some plan exceptions and a 50% transparency rule above certain heights); interior side and rear fences are typically allowed up to 6 feet ; retaining walls, corner side yard and driveway sight‑distance rules modify these limits. See § 22.110.070 for measuring height and the precise front/corner exceptions. Cite: § 22.110.070

Q: Do I have to screen my air‑conditioning units, meters, or backflow devices?

Yes — Title 22 repeatedly requires that mechanical equipment and utilities visible from the street be screened by landscaping, fencing, masonry walls, or architectural parapets integrated into the building design; many zone standards specifically prohibit utility devices in the front yard unless fully screened. Cite: Title 22 landscaping/screening subsections (see PASD § 22.318.060 examples)

Q: If my industrial property abuts a residential lot, what screening do I need?

Title 22 typically requires a landscaped buffer strip (commonly 5–10 ft) , a specified tree density for that buffer, and a solid masonry wall (commonly 6–8 ft) along the common lot line (subject to sight‑distance rules). See § 22.364.060.E and industrial‑zone standards for the exact buffer width and wall height that applies to your location. Cite: § 22.364.060.E

Q: Can I use chain‑link fence for screening in Los Angeles County?

Chain‑link and barbed wire are generally prohibited for screening in most zones; Title 22 allows chain‑link only in limited situations (e.g., secured construction sites, some Antelope Valley and Santa Clarita Valley exceptions, or when combined with slats/mesh and vegetation). Verify the applicable zone or plan before specifying chain‑link. Cite: Title 22 fence materials language and local exceptions

Landscaping and Screening under the Los Angeles County local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

This reference summarizes what the Los Angeles County Zoning and Planning ordinance (Title 22) requires for landscaping and screening in the County’s unincorporated areas. It covers the recurring, enforceable rules you will see most often: minimum landscaped area, tree/planting rules, screening of utilities, and fence/wall height and transparency rules — and points to the zone- or plan-specific standards that modify those rules. For related development topics see the County’s pages on Los Angeles County Zoning, Los Angeles County Development Standards, and Los Angeles County Parking.

Core standards (what appears across Title 22)

Minimum landscaped area: many zone chapters and specific plans require a minimum landscaped portion of the lot (commonly 20% of net lot area where stated), measured outside building footprints and drive aisles; parking-lot planting usually does not count toward that minimum in several zones. See the applicable zone/specific-plan standard(s) for the exact percentage and any square‑foot cap. Verify the applicable zone chapter for the parcel. Cite: general Title 22 examples requiring 20% landscaping appear in the zoning text (see § 22.318.060 and multiple zone-specific standards) .
Drought-tolerant / native species: where Title 22 requires plant-species guidance, on-site landscaping must be predominantly native to southern California or non‑invasive, drought tolerant species and comply with the County’s tree list and irrigation requirements (see Chapter 22.126 for tree planting/maintenance). Cite: Chapter 22.126 (Tree Planting Requirements) and the plant-species language in the landscaping subsections of Title 22 § 22.318.060 and other zone standards .
Landscaped buffer where non‑residential abuts residential: where a new or expanded non‑residential primary use abuts a residence or residentially‑zoned lot, Title 22 commonly requires a 5‑foot landscaped buffer, one 15‑gallon tree per X sq.ft., and a solid masonry wall 6–8 feet high (provided sight‑distance rules are satisfied). Cite: § 22.364.060.E and parallel standards in PASD and other plan sections (lists of buffer width, tree spacing, and masonry wall heights) .
Screening of mechanical equipment and utilities: devices such as backflow preventers, transformers, meters, and rooftop equipment must be screened from street view by landscaping, decorative walls, or parapets integrated into design; many zones explicitly prohibit such equipment in the front yard unless fully screened. Cite: examples in Title 22 (see policy language in landscaping/screening subsections) and PASD area standards § 22.318.060.B and related subsections .
Trash enclosures and solid waste: residential projects with trash enclosures must comply with the County’s storage-enclosure requirements (refer to Chapter 22.132). Cite: screening and trash rules referenced in multiple landscaping subsections (see Title 22 landscaping/screening text) .
Parking-lot landscaping and screening: parking lots are subject to minimum interior tree counts (for example, one 24‑inch box tree per six parking spaces in some plans), perimeter landscaped setbacks/screening to shield parked vehicles from rights‑of‑way and adjacent residential uses, and irrigation requirements. Refer to Chapter 22.112 (Parking) and the parking/landscape subsections in applicable specific-plan or zone standards. Cite: parking-landscape rules appear in Title 22 (see Chapter 22.112 and PASD / mixed‑use standards) .
Prohibited fence materials and transparency rules: barbed wire, razor wire, electrified fencing, and unadorned chain link are generally prohibited except in narrowly defined uses; front-yard fences over 3–3.5 ft tall must be at least 50% transparent in many zones; corner/corner‑side rules and driveway visibility override wall heights (sight‑distance § 22.110.180). Cite: § 22.110.070 (Fences and Walls) and related zone-level restrictions (multiple zone and specific‑plan subsections) .
Measuring fence height, retaining walls: fence/wall height is measured at the highest average ground level within 3 ft of either side; retaining walls and fences atop retaining walls have special measuring/setback rules in § 22.110.070. Cite: § 22.110.070 .
Special scenic / hillside / specific‑plan rules: in Scenic Resource Areas and many specific plans, landscape and screening rules may be stricter (e.g., only open‑style fences in scenic areas, native plant lists, limitation on screening that substitutes for setbacks). Cite: § 22.44.2040 (Scenic Resource Areas) and multiple specific plan sections (e.g., Universal Studios, PASD, Marina) .

If a parcel is in a Specific Plan, Community Standards District (CSD), or Form‑Based Code area the plan’s landscaping/screening rules (volume-specific sections of Title 22 such as 22.318, 22.410, 22.418, 22.408, etc.) will apply in addition to general Title 22 standards — see Los Angeles County Overlay Districts and the specific plan chapter for the area. Examples: PASD § 22.318.060 contains area‑wide screening/utility screening requirements; Universal Studios Specific Plan includes bespoke screening/greenspace requirements .

District-by-district highlights

Below are the districts / plan types where landscaping/screening rules appear explicitly in Title 22 and the typical landscaping/screening standards you will actually be required to meet in those districts. Each subsection states where it applies in the unincorporated County.

Residential Zones — R‑A, R‑1, R‑2, R‑3, R‑4, R‑5

Purpose & typical uses: single‑family and multi‑family residential development, accessory dwelling units (ADUs) allowed subject to ADU law and local ADU rules.
Key landscaping/screening standards:
- Front‑yard landscaping and tree planting: many residential zone rules require front setbacks (and a percentage or portion of them) be landscaped with drought‑tolerant, non‑invasive species and include irrigation; see Chapter 22.126 for species and maintenance requirements and the residential zone chapter for front yard specifics. Cite: front‑yard landscaping + tree planting references in the residential‑use subsections of Title 22 and Chapter 22.126 .
- Fences/walls: front‑yard fences are limited to 3.5 feet in most residential front yards (or 5.5 ft in some plan areas where 42‑inch solid maximum is required), side/rear yard fences usually up to 6 feet; corner visibility triangles limit wall/planting heights. See § 22.110.070 and the residential zone text for local exceptions (some community plans allow wrought‑iron up to 5 ft subject to ministerial review) .
Where it applies: all unincorporated residential parcels; check the exact residential zone chapter or area plan for the parcel (e.g., CSLA R‑2 standards appear in § 22.416.050 for that overlay) .

Commercial Zones — C‑1, C‑2, C‑3, MXD

Purpose & typical uses: retail, services, offices, mixed‑use commercial/residential (MXD).
Key standards:
- Site landscaping: commercial zones commonly require a minimum landscaped setback from the front property line (10–20 ft depending on zone) with specific tree ratios (e.g., one 15‑gallon tree per X sq.ft.) and often require that 10–20% of the net site be landscaped; on‑site irrigation and Low‑Impact Development standards apply (see Chapter 12.84 cross‑reference). Examples: a 10 ft front setback landscaped with one 15‑gallon tree per 150 sq.ft. is described in commercial zone rules. Cite: commercial setbacks and tree ratios (see Title 22 commercial dev standards and § 22.318.060 examples) .
- Parking screening: vehicle parking must be screened from streets and adjacent residential properties using continuous hedges, masonry walls, berms, or a combination; plant screening must reach minimum heights within two years and walls used for screening must have the same treatment on both sides. See parking chapter and commercial‑zone development standards. Cite: parking screening & planting performance (Chapter 22.112 and zone sections) .
- Loading & service area screening: loading docks and service areas must be located away from residential edges and screened with decorative masonry or compatible materials; chain link and unadorned CMU are often prohibited for street‑facing screening. Cite: commercial zone and specific plan loading/ screening rules (Title 22 text) .
Where it applies: unincorporated commercial parcels; check special plan rules for downtown/mixed‑use overlay areas.

Industrial Zones — M‑1, M‑1.5, C‑M, etc.

Purpose: light and general industrial uses.
Key standards:
- Buffers: properties adjoining residential zones, schools, or parks must provide a minimum landscaped buffer (commonly 5–10 feet), a specified number of trees per landscaped area, and often require an 8‑foot masonry wall along common property lines in industrial areas (some area plans require 8 ft walls where industrial adjoins residential). Cite: M‑1 buffer rules and § 22.364.060.E references and M‑zone rules in Title 22 .
- Parking & outdoor storage screening: more stringent screening and prohibition on visible outdoor storage where adjacent to residential zones; unadorned chain link is usually prohibited unless modified (e.g., chain link with slats and vegetation). Cite: industrial area standards in Title 22 (see sections on outdoor storage and screening) .
Where it applies: all unincorporated industrial parcels; check any Community Standards District (CSD) or specific plan overlay for stricter rules.

Specific Plans, PASD, Scenic Areas, and Community Standards Districts (examples)

PASD (Plan Area‑Specific Development) — § 22.318.060: requires service-equipment screening, landscaped buffer and masonry walls 6–8 ft along residential edges, and specific parking‑lot tree planting/irrigation details. Cite: § 22.318.060 (PASD area‑wide standards) .
Scenic Resource Areas — § 22.44.2040: places limits on screening substituting for siting/height controls, permits only open‑style fences in many scenic areas, and requires native species for hillside revegetation. Cite: § 22.44.2040 .
Universal Studios Specific Plan / other specific plans: include bespoke greenspace, screening, and fence height rules (example: required greenspace along a boundary and a new painted metal security fence spec for a project boundary). Cite: Universal Studios Specific Plan excerpts in Title 22 specific plan sections .

Quick reference table — decision‑relevant standards

Requirement	Typical rule/value in Title 22	Code Reference
Front‑yard fence height (standard lots)	≤ 3.5 ft in required front yard; see corner/visibility exceptions	§ 22.110.070
Interior side/rear fences	≤ 6 ft (typical)	§ 22.110.070
Landscaped area (common minimum)	20% of net site area (varies by zone/plan)	Zone/spec‑plan landscaping subsections (examples in § 22.318.060 and multiple zone sections)
Buffer when non‑residential abuts residential	5 ft buffer; 1 x 15‑gal tree / 50 sq.ft. (or other ratios per plan); 6–8 ft masonry wall	§ 22.364.060.E and parallel plan sections
Parking‑lot trees	Often 1 tree / 6 spaces (24‑inch box) or parking plan ratios; raised planter islands (≥4 ft)	Parking chapter and plan standards (Chapter 22.112, PASD)
Plant species	≥ 80% native/drought tolerant where specified; irrigation required	Landscaping subsections and Chapter 22.126 (Tree Planting)
Screening of utilities/AC	Prohibited in front yard unless fully screened; rooftop units screened with parapet/architectural feature	Landscaping/screening subsections (see Title 22 landscaping text and PASD § 22.318.060)

Checklist (what an applicant must satisfy for landscaping & screening on an application)

Confirm the parcel is in the County’s unincorporated area and identify the applying zone/specific plan chapter in Title 22 (verify applicable chapter) — see Title 22 overview .
Show required landscaped area on site plan (identify percent of net site and any caps) and show that parking‑lot planting does/does not count as required by the applicable zone/spec plan (verify Chapter 22.112 for parking rules) .
Provide a landscape planting list, irrigation plan, and show 80% native/drought‑tolerant candidate species where the zone requires it; reference Chapter 22.126 and any local plant lists. Cite: Chapter 22.126 .
Demonstrate screening for rooftop and yard mechanical equipment (parapet, wall, or planting) if visible from the street; label screening materials on elevations and sections (see Title 22 screening text) .
Dimension fencing/walls and show compliance with § 22.110.070 (height measurement and corner visibility) including retaining‑wall offsets where applicable .
If non‑residential abuts residential, show 5‑ft buffer, tree spacing, and masonry wall 6–8 ft where required; include a maintenance plan for the buffer vegetation (§ 22.364.060.E or the local plan section) .
For parcels in Specific Plans / Scenic Resource Areas, include any required native‑vegetation documentation, and demonstrate that screening is not substituting for required setbacks (§ 22.44.2040). Cite: § 22.44.2040 .
Check whether the project triggers discretionary design review or a Ministerial Site Plan Review (Type I) under Title 22 (see Chapter 22.224 and permit tables) .
Identify whether any existing protected trees (oak, sycamore, walnut, bay, toyon) require an Oak Tree Permit under Chapter 22.174. Cite: Chapter 22.174 .

Risks & Ambiguities

Issue	Why it matters	What to verify
Which set of landscaping rules controls (zone vs. specific plan vs. overlay)	Specific plans and CSDs frequently modify or supersede base‑zone landscaping/screening rules; non‑conforming or more restrictive rules may apply	Verify the parcel’s controlling ordinance chapter (Title 22 chapter & any Specific Plan/CSD) and cite that chapter in the submittal. Not found in retrieved materials: parcel‑specific control — Verify with the jurisdiction.
Conflicts between sight‑distance and required wall height	Sight‑distance safety (for driveways/corners) can prevent building a full 6–8 ft masonry wall even if the zone otherwise allows it	Confirm § 22.110.180 (sight distance) with Public Works / Planning to determine allowed wall height near driveways and street corners
Tree species vs. utility locations / fire access	Large trees in the wrong place can conflict with fire‑department apparatus and underground utilities	Follow Chapter 22.126 species lists and consult Fire Dept. / Public Works for tree placement. Verify with jurisdiction for parcel‑specific constraints.
Use of chain‑link or other “prohibited” materials	Many areas outright prohibit chain link or barbed wire; some valleys/areas allow chain link with plant screening	Check the local zone or specific plan wording (e.g., Antelope Valley exceptions) before specifying chain link. Cite: chain‑link exceptions in some local plan text — verify with Planning (not all areas allow it)
Whether parking lot landscaping counts toward site minimum	In several zones parking lot landscaping is explicitly excluded from the site minimum; in others, partial counting is allowed	Confirm zone section and Chapter 22.112 parking landscaping rules for the parcel; if in doubt, show landscaping beyond the minimum or provide a calculation.

Plain‑English summary

If your property is in unincorporated Los Angeles County, the zoning code (Title 22) usually requires you to landscape a portion of your lot with drought‑tolerant/native plants, plant trees to specific ratios, screen utilities and trash enclosures from the street, and follow strict maximum heights and transparency rules for front fences; the exact numbers depend on your zone or any specific plan that covers your parcel, so always pull the parcel’s Title 22 zone/spec‑plan sections and comply with Chapter 22.126 for tree rules and § 22.110.070 for fences and walls.

Source References

Title 22 (Planning and Zoning), Los Angeles County Code (Title and applicability) — see Title 22 introduction and chapters referenced in this page.
Fences and Walls — § 22.110.070 (measuring height, front yard/corner/retaining wall rules).
Landscaped buffer where non‑residential abuts residential — § 22.364.060.E and parallel plan subsections (5‑ft buffer, tree spacing, masonry wall 6–8 ft).
PASD area‑wide development standards (screening of utilities, parking landscaping) — § 22.318.060 (area‑wide standards).
Parking landscaping & screening chapters and standards (Chapter 22.112 and parking design subsections referenced across Title 22).
Tree planting requirements and maintenance — Chapter 22.126 (Tree Planting Requirements).
Scenic Resource Area standards that restrict substitution of screening for siting/setbacks — § 22.44.2040.
Trash enclosure standards reference — Chapter 22.132 (Storage Enclosure Requirements for Recycling and Solid Waste) (referenced from landscaping/screening subsections).

(If you need the exact Title 22 chapter or specific plan section that controls a particular parcel, tell me the APN or the unincorporated community and I will locate the exact chapter/section and extract the precise landscaping and fence numbers for that parcel. Verify with the jurisdiction.)

Sources

Retrieved passages

Los Angeles County Zoning Code (Chapter 22.132) High relevance
Los Angeles County Zoning Code (section 110.10) High relevance
Los Angeles County Zoning Code (Chapter 22.126) High relevance
Los Angeles County Zoning Code (Section 22.110.060.C) High relevance
Los Angeles County Zoning Code (Chapter 22.132) High relevance
Los Angeles County Zoning Code (Section 22.408.070.E.7.c) High relevance
Los Angeles County Zoning Code (§ 6) High relevance
Los Angeles County Zoning Code (Section 22.110.060.C) High relevance
CFC § 110.10 (section 110.10) High relevance
Los Angeles County Zoning Code (Chapter 22.114) High relevance
Los Angeles County Zoning Code (Section 22.110.060.C) High relevance
Los Angeles County Zoning Code (Chapter 22.110) High relevance
Los Angeles County Zoning Code (§ 4) High relevance
Los Angeles County Zoning Code (Chapter 22.188) High relevance
Los Angeles County Zoning Code (§ 1) High relevance
Los Angeles County Zoning Code (Section 22.140.430.C.2) Medium relevance
Los Angeles County Zoning Code (§ 1) Medium relevance
Los Angeles County Zoning Code (Title 22) Medium relevance
CBC § 17921.3 (Chapter 22.56) Medium relevance
Los Angeles County Zoning Code (Title 22) Medium relevance
Los Angeles County Zoning Code (§ 161) Medium relevance
Los Angeles County Zoning Code (Section 22.44.820) Medium relevance

Cited sections

Official Los Angeles County code library

Frequently asked questions

What can I build on an R‑1 lot in Los Angeles County and what landscaping is required?

You can build uses allowed in R‑1 (single‑family) per Title 22 for unincorporated areas; the required front yard and street‑fronting setbacks must be landscaped with drought‑tolerant/native plants and be irrigated as required by Chapter 22.126; fences in the front yard are typically limited to 3.5 ft and side/rear fences 6 ft maximum per § 22.110.070. Cite: § 22.110.070 and Chapter 22.126

How much of my lot must be landscaped in unincorporated Los Angeles County?

Many Title 22 zone and specific‑plan sections require a minimum landscaped area commonly set at 20% of the lot (or another percent or square‑foot cap in some specific plans); parking‑lot planting often does not count toward this minimum — check the applicable zone or specific plan language that applies to your parcel (examples appear in Title 22 landscaping subsections such as § 22.318.060). Cite: § 22.318.060 and zone subsections

What fence and wall heights are allowed along the front yard and property lines?

Fences in a required front yard are typically limited to 3.5 feet (with some plan exceptions and a 50% transparency rule above certain heights); interior side and rear fences are typically allowed up to 6 feet; retaining walls, corner side yard and driveway sight‑distance rules modify these limits. See § 22.110.070 for measuring height and the precise front/corner exceptions. Cite: § 22.110.070

Do I have to screen my air‑conditioning units, meters, or backflow devices?

Yes — Title 22 repeatedly requires that mechanical equipment and utilities visible from the street be screened by landscaping, fencing, masonry walls, or architectural parapets integrated into the building design; many zone standards specifically prohibit utility devices in the front yard unless fully screened. Cite: Title 22 landscaping/screening subsections (see PASD § 22.318.060 examples)

Does the County require native or drought‑tolerant plants?

Where Title 22 landscaping rules apply, on‑site landscaping is commonly required to be native to southern California, non‑invasive, and drought‑tolerant, and an irrigation plan is required; Chapter 22.126 contains tree species lists and maintenance rules. Cite: Chapter 22.126 and Title 22 landscaping language

If my industrial property abuts a residential lot, what screening do I need?

Title 22 typically requires a landscaped buffer strip (commonly 5–10 ft), a specified tree density for that buffer, and a solid masonry wall (commonly 6–8 ft) along the common lot line (subject to sight‑distance rules). See § 22.364.060.E and industrial‑zone standards for the exact buffer width and wall height that applies to your location. Cite: § 22.364.060.E

Will parking‑lot landscaping count toward the site landscaping minimum?

Often no — many zone and specific plan sections explicitly exclude parking lot landscaping from the site landscaping minimum; however, parking‑lot landscaping is still required to meet interior tree counts and perimeter screening per the parking chapter (Chapter 22.112). Cite: parking and landscaping rules in Title 22 (see Chapter 22.112 and plan subsections)

Can I use chain‑link fence for screening in Los Angeles County?

Chain‑link and barbed wire are generally prohibited for screening in most zones; Title 22 allows chain‑link only in limited situations (e.g., secured construction sites, some Antelope Valley and Santa Clarita Valley exceptions, or when combined with slats/mesh and vegetation). Verify the applicable zone or plan before specifying chain‑link. Cite: Title 22 fence materials language and local exceptions

Do specific plans ever require different landscaping or screening than the base zone?

Yes. Specific Plans, the PASD, and community standards districts commonly add or change landscaping and screening rules — sometimes requiring larger buffers, different plant species, or particular wall materials and finishes. Always check the parcel’s specific‑plan chapter in Title 22. Cite: examples in PASD § 22.318.060, Universal Studios Specific Plan text, and other plan chapters.

Does screening substitute for reducing building height or setbacks in scenic/hillside areas?

No. In Scenic Resource Areas Title 22 emphasizes that building siting, height reductions, and design alternatives are preferred over screening; screening cannot be used to mask impacts where reduced height or relocation is feasible. See § 22.44.2040. Cite: § 22.44.2040

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