Skip to content

Local code · Los Angeles County

Los Angeles County — Community Standards Districts

The Los Angeles County Community Standards Districts, explained in plain English with the controlling citations.

Ask AI about your property See coverage

Quick answer

In unincorporated Los Angeles County, Community Standards District rules can override conflicting base-zone standards for the same issue. In the Southeast Antelope Valley CSD, front-yard fences may reach 6 ft only when at least 10 ft from a driveway and with 20 ft of right-of-way clearance; otherwise the limit is 3.5 ft. §§ 22.300.020.A, 22.340.070.A.3

Last reviewed: September 20, 2026 · AI-generated analysis · General information, not legal advice · details

Compiled from Los Angeles County's adopted code with AI research tools and grounded in the sources cited below. Verify with Los Angeles County planning staff before relying on it.

Overview

Community Standards Districts (CSDs) are place-specific development standards within Los Angeles County Code Title 22 for identified unincorporated areas of Los Angeles County. They supplement Countywide rules to carry out adopted community, area, neighborhood, specific, or local coastal plan objectives where local conditions warrant more tailored regulation. § 22.300.010

A CSD does not create one universal zoning district: it adds geographically targeted rules that can override the otherwise applicable base-zone standard when the two regulate the same subject. § 22.300.020.A

CSD requirements are only one layer of review. The applicable base zone still matters; see the Los Angeles County Zoning and Los Angeles County Land Use pages for those Countywide rules.

How Community Standards Districts Work

Within Division 10’s hierarchy, a CSD area-wide standard supersedes a conflicting base-zone standard, and a CSD zone-specific standard supersedes both the base zone and the CSD area-wide standard. More geographically specific sub-area standards can supersede CSD standards; a specific plan generally supersedes contrary Division 10 provisions; and listed supplemental districts can also supersede contrary CSD provisions. § 22.300.020.A–B

Decision point CSD rule Code Reference
Conflict with base zoning Applicable CSD standards supersede contrary base-zone standards under the Division 10 hierarchy. § 22.300.020.A
Specific plan parcel A contrary specific-plan regulation generally controls. § 22.300.020.B.1
ADU or JADU proposal ADUs and JADUs remain subject to the County’s ADU provision, not a separate CSD formula. § 22.300.020.B.3
Existing lawful development County nonconforming-use and structure rules apply unless the CSD says otherwise. § 22.300.020.B.7
CSD standard modification Division 10 standards may be modified through the stated permit paths, subject to the applicable chapter’s standards and exceptions. § 22.300.020.C

A CSD is therefore not a substitute for parcel-level zoning verification. Confirm the mapped CSD boundary, base zone, any Los Angeles County Overlay Districts, and whether a Los Angeles County Specific Plans regulation controls before relying on a Countywide dimensional rule.

District-by-District Standards

Southeast Antelope Valley Community Standards District

The Southeast Antelope Valley CSD protects rural, equestrian, agricultural, desert, flood-plain, and significant-ecological-area character in its mapped unincorporated areas. It also seeks public riding and hiking access and reduced urbanization impacts. § 22.340.010

It applies to development, expansion, or change-of-use applications requiring Department approval filed after January 18, 2024. For a legally established use existing on that date, it applies to the new expansion only, not the existing development. § 22.340.040

Residential and agricultural zones. In R-A, A-1, and A-2 zones, nonhabitable storage containers are allowed as accessory uses only within the CSD’s acreage-based limits, must be no more than 10 ft high, 10 ft wide, and 40 ft long, cannot occupy a required yard, cannot be stacked, and cannot sit between the primary structure and the right-of-way. § 22.340.070.A.2

Lot net acreage Maximum linear feet of containers Maximum containers Code Reference
0 to <0.5 acre 20 ft 2 § 22.340.070.A.2
0.5 to <1 acre 40 ft 2 § 22.340.070.A.2
1 to <3 acres 80 ft 2 § 22.340.070.A.2
3 to <5 acres 80 ft 4 § 22.340.070.A.2
5+ acres 160 ft 4 § 22.340.070.A.2

A qualifying agricultural parcel may park one truck tractor, with or without one trailer or semi-trailer, only after Ministerial Site Plan Review and only if the site is the owner/operator’s primary residence, is at least 1 gross acre, fronts a paved public road, and meets the detailed location, circulation, noise, maintenance, and environmental constraints. The tractor-trailer must be at least 10 ft from property lines, at least 35 ft from a human-habitation building other than the subject residence or its ADU, and no more than 75 ft overall, with a trailer no more than 53 ft long. § 22.340.070.A.1

Fence standards. A front-yard fence or wall may reach 6 ft where it is at least 10 ft from a driveway and preserves 20 ft of vehicle clearance from the right-of-way; closer than 10 ft to a driveway, it is limited to 3.5 ft. Interior side and rear-yard fences may reach 8 ft; corner and reversed-corner side-yard rules vary by distance from the right-of-way. § 22.340.070.A.3 For broader Los Angeles County Development Standards, verify the base-zone yard requirements that remain applicable.

Rural, commercial, and industrial zones. Commercial and mixed-use commercial projects must provide at least two listed public amenities, such as benches, bicycle racks, landscaped buffers, drinking fountains, pedestrian-path lighting, or hitching posts. § 22.340.070.B.1 When adjoining residentially or agriculturally zoned land, buildings, parking, access, and circulation areas require a 25 ft landscaped separation area or, where allowed, a masonry-wall alternative with a 5 ft yard. § 22.340.070.B.2

Communitywide rules. New discretionary development must preserve natural contours, native vegetation, and rock outcrops to the greatest feasible extent. § 22.340.060.A New residential subdivisions require trail easements, construction, and maintenance arrangements consistent with the Antelope Valley Area Plan Trails Plan; trails must accommodate equestrian, hiking, and mountain-bike use. § 22.340.060.H

Leona Valley Community Standards District

The Leona Valley CSD protects and enhances the rural, equestrian, and agricultural character of its covered unincorporated areas, including sensitive ridgelines, Hillside Management Areas, and Significant Ecological Areas. § 22.330.010 See Los Angeles County Hillside Management Areas for the separate County topic.

Residential and agricultural zones. Structures are limited to 2 stories and 35 ft high, excluding attics. § 22.330.070.A.1 In A-1 and A-2 zones, accessory cargo containers require Ministerial Site Plan Review; their maximum is 1 container on 1 to <5 acres, 2 on 5 to <10 acres, and 3 on 10+ acres. They may not exceed 10 ft high, 10 ft wide, or 40 ft long; must be separated by at least 6 ft from structures or other containers; and must be screened and earth-tone painted. § 22.330.070.A.2

Commercial and rural zones. A new or expanded structure next to residential or agricultural zoning is capped at 17 ft within 5 ft of the shared line. Any portion above 17 ft must step back an additional 1 ft for each additional foot of height. Commercial lots also need a 10 ft front yard in addition to rural-zone standards. § 22.330.070.B

A modification requires a Conditional Use Permit and findings addressing hardship or exceptional site circumstances; the review authority must also consider neighborhood characteristics, and an approval or denial does not set precedent. § 22.330.090

San Francisquito Canyon Community Standards District

The San Francisquito Canyon CSD is intended to protect a secluded rural, equestrian, and agricultural community character and natural features, including ridgelines, significant ecological areas, and flood plains in its covered unincorporated areas. It also seeks to preserve trail access, animal keeping, limited urban infrastructure, and the canyon’s setting at the Angeles National Forest gateway. § 22.334.010

Specific permitted uses, dimensional standards, and mapped application boundaries are Not found in source materials. Verify with the jurisdiction whether a parcel lies within the CSD and what chapter provisions apply.

Santa Monica Mountains North Area Community Standards District

The Santa Monica Mountains North Area CSD implements the Santa Monica Mountains North Area Plan and directs what may be developed, where, and how it must be designed to protect community welfare and the surrounding natural environment in its covered unincorporated areas. § 22.336.010

The source materials establish locally important terms rather than a district-wide numerical standards table. These include Building Site Area, Gross Structural Area, animal containment facilities, animal living quarters, small and large horse boarding, riding academies, rural inns, vineyards, wetlands, streams, and wildlife-permeable fencing. § 22.336.020

Typical permitted uses and dimensional standards are Not found in source materials. A project involving equines, guest lodging, grading, lighting, streams, wetlands, or fencing should verify the CSD chapter and parcel conditions with the jurisdiction.

Three Points—Liebre Mountain Community Standards District

The source materials identify the Three Points—Liebre Mountain CSD boundary and establish standards that preserve a rural setting in its covered unincorporated areas. Its purpose statement is Not found in source materials. § 22.358.090

Residential and agricultural zones. Every front, side, and rear yard is at least 30 ft. Single-family residences must have eaves at least 12 in deep on all sides and use brick, stone, wood, or qualifying look-alike siding on at least 50% of street-facing façades. § 22.358.070.A.1–2

In A-1 and A-2 zones, cargo containers require Ministerial Site Plan Review and are limited to 1 container on 1 to <5 acres and 2 containers on 5+ acres. Each container is capped at 10 ft high, 10 ft wide, and 40 ft long, must be at least 6 ft from another structure or container, cannot be stacked, and needs earth-tone treatment and screening. § 22.358.070.A.3

Commercial and rural zones. New off-site alcohol sales, except renewal of an existing permit, cannot locate within 1,000 ft of an existing legally established public or private school or child-care center. Buildings are limited to 2 stories, commercial lots need a 10 ft front yard, street-facing façades may not use glass, stucco, or metal over more than 50% of their surface in any one material, and commercial hours are limited to 7:00 a.m.–10:00 p.m. Sunday–Thursday and 7:00 a.m.–11:00 p.m. Friday–Saturday. § 22.358.070.B

Scenic Drive areas. New development within 500 ft of a designated Antelope Valley Scenic Drive right-of-way is limited to 18 ft in height, subject to limited rooftop projections; structures may occupy no more than 50% of lot frontage; and small-scale wind energy facilities are prohibited. § 22.358.080.A

Communitywide rules. New drive-through service is prohibited. § 22.358.060.A On lots of at least 1 net acre, front-yard fences or walls must be at least 75% open, while perimeter fencing must be wildlife-permeable and follow specified rail or wire placement rules. § 22.358.060.B A Conditional Use Permit is required for grading exceeding 2,500 cubic yards of total cut plus fill in a 24-month period, with stated fire-related exclusions. § 22.358.060.D

Lake Los Angeles Community Standards District

The Lake Los Angeles CSD implements the Antelope Valley Area Plan and uses design and development standards to preserve rural, equestrian, and agricultural character and limit urbanization impacts in its covered unincorporated areas. § 22.360.010

Area-specific standards are expressly reserved. § 22.360.080 A modification to any chapter standard requires a Conditional Use Permit and findings of either practical difficulty or unnecessary hardship inconsistent with the CSD’s purpose, or exceptional conditions uniquely applicable to the property or proposed development. § 22.360.090

Typical permitted uses and numerical dimensional standards are Not found in source materials. Verify with the jurisdiction before treating the CSD purpose statement as an independently enforceable setback or use rule.

Castaic Area Community Standards District

The Castaic Area CSD protects rural character, appearance, and natural resources; seeks compatibility with existing rural neighborhoods and the Santa Clarita Valley Area Plan; and promotes trucking-related businesses where trucking already occurs without disrupting residential character, circulation, or traffic patterns in its covered unincorporated areas. § 22.312.010

The source materials reserve definitions and do not establish the CSD’s permitted-use list, setbacks, height, lot area, or other dimensional standards. § 22.312.020 Those items are Not found in source materials; verify with the jurisdiction.

La Crescenta-Montrose Community Standards District

The La Crescenta-Montrose CSD enhances foothill-community identity through commercial and residential design standards, a pedestrian-oriented Foothill Boulevard corridor, and buffers between single-family residences and more intensive uses in its covered unincorporated areas. The source materials establish a district map but do not provide the complete map location or all standards. § 22.320.120.A–C

R-1 zone. On R-1 lots of 7,500 sq ft or more, maximum Gross Structural Area is (0.25 × net lot area) + 1,000 sq ft. The calculation includes enclosed building and storage area, but excludes cellars and the first 400 sq ft of qualifying automobile garage area; permanent exterior lights must be fully shielded. § 22.320.120.D

R-3 zone. The supplied excerpt states that the R-3 provisions do not apply to single-family or two-family residences and requires front-yard landscaping, including at least one 15-gallon tree, but the full R-3 standards are Not found in source materials. § 22.320.120.E

A limited set of listed standards may be modified through a Minor Conditional Use Permit; other CSD standard modifications require a Conditional Use Permit. The decision requires additional findings about Title 22 compliance, traffic and pedestrian safety, functional design, exceptional circumstances, and absence of material detriment. § 22.320.120.G

East Pasadena-East San Gabriel Community Standards District

The East Pasadena-East San Gabriel CSD protects residential light, air, and privacy; improves aesthetics and community character; and seeks compatibility with the distinct neighborhood identity within the district’s covered unincorporated areas. § 22.320.110.A

R-1, R-2, R-A, and A-1 zones. These single-family residential zone standards are identified in the source materials, but their substantive requirements are Not found in source materials. § 22.320.110.D.1

Communitywide rules. Flag lots cannot use the otherwise available uniform 10 ft substitute for all front, side, and rear yards. § 22.320.110.C.1 CSD-established setback-district front yards take precedence over other standards established by that CSD. § 22.320.110.C.3

Outdoor advertising signs, roof signs, certain freestanding signs, flashing or moving signs, and business signs projecting more than 18 in from a façade are prohibited. § 22.320.110.C.2 See Los Angeles County Signage for the related Countywide topic.

Related Rules That Continue to Matter

CSD property may remain subject to affordable-housing replacement, density bonus, inclusionary housing, supportive housing, and housing-permit provisions where applicable. § 22.300.020.B.4 Those programs are addressed on the Los Angeles County Density Bonus & Inclusionary Housing page.

An ADU or junior ADU in a CSD is subject to the County’s ADU standards under § 22.140.640, rather than a separate CSD rule identified in these materials. § 22.300.020.B.3 See California ADU law for the related state-law topic.

Existing legally established uses and structures are generally evaluated under the County’s nonconforming provisions unless the applicable CSD provides otherwise. § 22.300.020.B.7 See Los Angeles County Nonconforming Uses.

Information Gaps

The source materials do not provide a complete list of every current CSD, complete CSD boundary maps, or complete standards for several named districts. The actual CSD designation and all applicable standards for a particular parcel must be verified with the jurisdiction.

Checklist

  • Confirm that the parcel is in an unincorporated area of Los Angeles County and within the applicable CSD boundary.
  • Identify the base zone and determine whether a CSD area-wide, zone-specific, sub-area, supplemental-district, or specific-plan rule controls. § 22.300.020.A–B
  • Check the district-specific height, yard, fencing, container, trail, design, or use standards that apply to the project.
  • For an ADU or junior ADU, apply § 22.140.640 rather than assuming a CSD creates separate ADU standards. § 22.300.020.B.3
  • Determine whether the proposal requires a permit, such as Ministerial Site Plan Review or a Conditional Use Permit, under the applicable CSD provision.
  • If seeking relief, verify the correct modification route and the CSD’s additional findings. § 22.300.020.C
  • Check whether lawful existing development is protected under nonconforming rules. § 22.300.020.B.7
  • Confirm building-code permits and construction requirements under the California Building Standards Code.

Risks & Ambiguities

Issue Why it matters What to verify
County versus incorporated-city jurisdiction Title 22 governs County unincorporated areas, not incorporated cities within Los Angeles County. Parcel jurisdiction and current zoning authority.
CSD boundary A CSD’s standards are geographic and can materially change a project’s setbacks, design, or permitted accessory features. Current zoning map and the applicable CSD figure.
Rule hierarchy A specific plan, supplemental district, or more specific standard can displace a CSD or base-zone rule. § 22.300.020.A–B All mapped and adopted regulations affecting the parcel.
Incomplete district excerpts Several districts have purpose or definition excerpts but no complete standards in source materials. Full current chapter text; do not infer missing dimensions or uses.
Permit path Similar changes can require Ministerial Site Plan Review, Minor Conditional Use Permit, or Conditional Use Permit depending on district and standard. District-specific application type and findings.
Existing improvements Existing lawful development may be treated differently from new construction or expansion. § 22.300.020.B.7; § 22.340.040 Date, legality, and scope of existing use and proposed expansion.

Plain-English Summary

In unincorporated Los Angeles County, a Community Standards District can impose local rules that override ordinary base zoning for the same issue. The result depends on the mapped district: one rural CSD may control fence height, container storage, trails, or scenic-drive building height, while another may have only purpose or modification provisions in the available materials. Verify the parcel’s exact CSD before designing or buying.

Source References

  • Los Angeles County Zoning Code § 22.300.010 — CSD purpose.
  • Los Angeles County Zoning Code § 22.300.020 — hierarchy, other Title 22 provisions, and modifications.
  • Los Angeles County Zoning Code §§ 22.330.010, 22.330.070, 22.330.090 — Leona Valley CSD.
  • Los Angeles County Zoning Code § 22.334.010 — San Francisquito Canyon CSD.
  • Los Angeles County Zoning Code §§ 22.336.010–.020 — Santa Monica Mountains North Area CSD.
  • Los Angeles County Zoning Code §§ 22.340.010, .040, .060, .070 — Southeast Antelope Valley CSD.
  • Los Angeles County Zoning Code §§ 22.358.060–.090 — Three Points—Liebre Mountain CSD.
  • Los Angeles County Zoning Code §§ 22.360.010, .080–.090 — Lake Los Angeles CSD.
  • Los Angeles County Zoning Code §§ 22.312.010–.020 — Castaic Area CSD.
  • Los Angeles County Zoning Code § 22.320.110 and § 22.320.120 — East Pasadena-East San Gabriel and La Crescenta-Montrose CSD excerpts.

Sources

Source passages

  • Los Angeles County Zoning Code § 22.300.010 Medium relevance
  • Los Angeles County Zoning Code § 22.334.010 Medium relevance
  • Los Angeles County Zoning Code § 22.336.010 Medium relevance
  • Los Angeles County Zoning Code (§ 22.360.080) Medium relevance
  • Los Angeles County Zoning Code § 22.358.060 Medium relevance
  • Los Angeles County Zoning Code § 22.360.010 Medium relevance
  • Los Angeles County Zoning Code § 22.340.010 Medium relevance
  • Los Angeles County Zoning Code § 22.330.070 Medium relevance
  • Los Angeles County Zoning Code § 22.330.010 Medium relevance
  • Los Angeles County Zoning Code § 22.312.010 Medium relevance
  • Los Angeles County Zoning Code § 22.358.090 Medium relevance

Cited sections

Frequently asked questions

What are Community Standards Districts in unincorporated Los Angeles County?

Community Standards Districts are local Title 22 standards for specified unincorporated areas that address community-specific development and land-use issues beyond Countywide zoning rules. Where a CSD and base zone conflict on the same subject, the applicable CSD standard generally controls under the Division 10 hierarchy. §§ 22.300.010, 22.300.020.A

What can I build on an R-1 lot in the La Crescenta-Montrose Community Standards District?

For an R-1 lot of at least 7,500 sq ft, the La Crescenta-Montrose CSD uses a maximum Gross Structural Area of (0.25 × net lot area) + 1,000 sq ft. It also requires fully shielded permanent exterior lighting. The supplied materials do not establish the complete R-1 permitted-use list, so verify with the jurisdiction. § 22.320.120.D

What are Southeast Antelope Valley fence height requirements?

In the Southeast Antelope Valley CSD, a front-yard fence or wall can be up to 6 ft when it is at least 10 ft from a driveway and preserves 20 ft of clearance from the right-of-way. If it is less than 10 ft from the driveway, the maximum is 3.5 ft; interior side and rear-yard fences may reach 8 ft. § 22.340.070.A.3

Can I place a shipping container on my Southeast Antelope Valley property?

A nonhabitable storage container may be allowed as an accessory use in R-A, A-1, or A-2 zones, subject to the CSD’s lot-size limits and Public Works permits. It cannot exceed 10 ft high, 10 ft wide, or 40 ft long, cannot be in a required yard or stacked, and must use earth-tone design treatment. § 22.340.070.A.2

Are ADUs allowed in Los Angeles County Community Standards Districts?

An ADU or junior ADU in a CSD is subject to the County’s ADU and JADU standards in § 22.140.640. The CSD framework does not create a separate ADU rule in the supplied materials, but parcel-specific CSD, specific-plan, and base-zone conditions should still be verified. § 22.300.020.B.3

What are the Leona Valley height limits?

In the Leona Valley CSD’s residential and agricultural zones, structures are limited to 2 stories and 35 ft in height, excluding attics. Commercial or rural-zone structures next to residential or agricultural zoning have a separate 17 ft height limit within 5 ft of the shared property line, with a required stepback above that height. § 22.330.070

Do new Southeast Antelope Valley subdivisions need equestrian trails?

Yes. New subdivisions must provide trails consistent with the Antelope Valley Area Plan Trails Plan, including County trail-easement dedication and subdivider-built trail construction before final-map recordation. Trails must accommodate equestrian, hiking, and mountain-bike use, subject to the CSD’s standards. § 22.340.060.H

Is grading regulated in the Three Points—Liebre Mountain Community Standards District?

Yes. A Conditional Use Permit is required for grading exceeding 2,500 cubic yards of total cut plus fill within a 24-month period, subject to stated exclusions for certain Fire Department turnaround or brush-clearance work. The approval also requires additional findings on terrain disturbance, visual quality, and viewsheds. § 22.358.060.D

Can I modify a Community Standards District development standard?

Possibly, but the procedure depends on the CSD and the standard. For example, Leona Valley modifications require a Conditional Use Permit and specified hardship or exceptional-circumstance findings, while Lake Los Angeles uses a Conditional Use Permit for modifications to chapter standards. §§ 22.330.090, 22.360.090

General information, not legal advice.

More in Los Angeles County code

Ask about any Los Angeles County property

Get a cited, plain-English answer on Los Angeles County zoning, setbacks, FAR, ADUs and permits — for any address.

Ask your question

More Los Angeles County zoning topics

Los Angeles County Hillside Management Areas

Los Angeles County Density Bonus & Inclusionary Housing

Los Angeles County Oak Tree Permits

Los Angeles County Development Agreements

Los Angeles County Disaster Recovery Provisions

Los Angeles County Specific Plans

Los Angeles County Equestrian Districts

Los Angeles County Zoning

Los Angeles County Land Use

Los Angeles County Development Standards

Los Angeles County Parking

Los Angeles County Design Review

Los Angeles County Overlay Districts

Los Angeles County Historic Preservation

Los Angeles County Signage

Los Angeles County Nonconforming Uses

Los Angeles County Variances and Exceptions

Los Angeles County Landscaping and Screening

Los Angeles County overview

Los Angeles County municipal code (full text)