Inyo County — Land Use

Last reviewed: July 6, 2026

Overview

This page explains how land uses are organized and regulated in unincorporated areas of Inyo County under the County’s zoning ordinance (Title 18, “Zoning”). Each parcel is assigned to a base district and sometimes an overlay; what you can use the land for depends on those districts’ permitted and conditional uses and their objective standards such as lot size, setbacks, height, and parking. Use this alongside the high‑level Inyo County Zoning and Inyo County Development Standards pages.

The single most important rule: A land use is allowed only if the use is listed for your district (or is found “similar”) and it meets the district’s objective standards and any applicable overlay requirements (§ 18.03.100).

How Inyo County organizes land use (Title 18)

• The zoning ordinance applies only to unincorporated areas. It divides the county into districts and overlays; only listed uses are allowed and only per the district’s standards (§ 18.03.050; § 18.03.060; § 18.03.100).
• Base districts include: OS, R-1, R-2, R-3, RR, RR-0.5 (Starlite), CB, C-1, C-2, C-3, C-4, C-5, M-1, M-2, P, plus combined districts PP (Precise Plan) and PUD; overlays include D (Architectural Design Control) and SAHO (Snow Avalanche Hazard Overlay) (§ 18.03.060).

Below is a district‑by‑district synthesis of purpose, typical allowed uses, and notable standards that most affect site planning. Always confirm parcel zoning and overlays on the County zoning map (§ 18.03.070).

OS — Open Space (§ 18.12)

• Purpose/where used: Protects mountain, valley, desert and agricultural open space designated by the General Plan (§ 18.12.010).
• Typical permitted uses: One single‑family dwelling (including a mobilehome), agriculture and ranching; wildlife refuges and wilderness uses (§ 18.12.020).
• Conditional uses: Public stables, campgrounds/lodges/resorts, airports/airstrips, refuse disposal, mining, cemeteries, agriculturally oriented services; second units per ADU rules (§ 18.12.040; § 18.78.340).
• Notes: Signs are governed by the sign code; see Inyo County Signage (§ 18.12.030; Chapter 18.75).

RR — Rural Residential (§ 18.21)

• Purpose/where used: Low‑density residential “outside the urban communities” with limited services; often self‑sustaining wells/septic (§ 18.21.010).
• Permitted uses: One single‑family dwelling (including mobilehomes); orchards/crops, nurseries, gardens (§ 18.21.020).
• Conditional uses: Social halls/clubs, private recreation (country clubs, pools, golf), schools/places of worship, care facilities, kennels; limited areas for commercial cannabis cultivation with acreage and setback limits (§ 18.21.040).
• Key standards: 1 acre min. lot; front 50 ft, rear 30 ft, sides 20 ft; height 30 ft/2.5 stories; 2 spaces per dwelling; Darwin townsite may use R‑1 yards (§ 18.21.050).

RR‑0.5 — Starlite Estates (§ 18.22)

• Purpose/where used: Starlite Estates and adjoining private lands with lower minimum lot size (§ 18.22.010).
• Permitted uses: Same core RR residential/agricultural intent (§ 18.22.020).
• Key standards: 0.5 acre min. lot; front 25 ft, rear 25 ft, side 5 ft; height 30 ft/2.5 stories; 2 spaces per dwelling (§ 18.22.050).

R‑1 — One‑Family Residences (§ 18.30)

• Purpose: Protect one‑family neighborhoods; allow compatible community facilities (§ 18.30.010).
• Permitted uses: One single‑family dwelling (including a single‑family mobilehome); gardens/crops; transitional/supportive/group homes (§ 18.30.030).
• Conditional uses: Churches, schools, certain utilities, public recreation, community clubhouse, accessory parking lots; certain child care (§ 18.30.040).
• Key standards: Min. lot 5,800 sq ft; front 25 ft, rear 20 ft, sides 5 ft; height 35 ft/2.5 stories; 2 parking spaces per dwelling (§§ 18.30.060–.080, .110).

R‑2 — Multiple Residential (duplex) (§ 18.33)

• Purpose: Medium‑density, duplex and two‑unit neighborhoods (§ 18.33.010).
• Permitted uses: One SFD; two SFDs; duplex; gardens/crops; transitional/supportive/group homes (§ 18.33.020).
• Conditional uses: Boardinghouse, resthome, mobilehome parks, clubs, child care, plus R‑1‑type civic uses (§ 18.33.030).
• Key standards: Min. lot 6,500 sq ft; front 25 ft, rear 20 ft, sides 5 ft; height 40 ft/3 stories; 2 spaces per unit (§§ 18.33.050–.060, .080–.090).

R‑3 — Multiple Residential (§ 18.34)

• Purpose: Higher‑density multifamily areas (apartments, townhomes, mobilehome parks) (§ 18.34.010).
• Permitted uses: SFDs, duplexes, multifamily (density per General Plan), residential care, SROs, transitional/supportive/group homes (§ 18.34.020).
• Conditional uses: Mobilehome parks; civic and childcare uses (§ 18.34.040).
• Key standards: Min. lot 10,000 sq ft; front 15 ft (25 ft if next to R‑1/R‑2 unless matched to adjacent nonconformity); rear 15 ft; sides 5 ft/story; height 40 ft/3 stories; parking 2 per unit + guest ratio (§ 18.34.050).

CB — Central Business (§ 18.44)

• Purpose: Small retail/service/office, mixed‑use, and multifamily in central business areas (§ 18.44.010).
• Permitted uses: A broad list including auto repair, banks, restaurants, retail, hotels/motels, mixed‑use (with ≥50% residential), multifamily, SROs, transitional/supportive/group homes (§ 18.44.020).
• Conditional uses: Utilities, mortuary, certain signs, caretaker dwelling, childcare, mini‑storage, cannabis retailer/distributor/microbusiness by CUP (§ 18.44.030).
• Key standards: Not found in retrieved materials.

C‑1 — General Commercial‑Retail (§ 18.45)

• Uses: Broad retail, service, offices; housing types like SROs and supportive housing are listed; many additional commercial uses by CUP including mixed‑use and multiple dwellings (§§ 18.45.020–.030).
• Key standards: No yards unless abutting R (then 20 ft); height 40 ft/3 stories (20 ft within 50 ft of an R zone); min. lot 10,000 sq ft; parking 1/400 sf (or as set by Director) (§§ 18.45.060–.080; § 18.45.050).

C‑2 — Highway Services & Tourist Commercial (§ 18.48)

• Purpose: Highway/tourist‑oriented uses near major routes (§ 18.48.010).
• Uses: Enclosed retail and services, eating/drinking, motels, auto services, SROs and supportive housing; CUPs include drive‑throughs, hospitals/veterinary, warehouses, mixed‑use/multifamily, and cannabis retailer/distributor/microbusiness (§§ 18.48.020–.030).
• Key standards: Front 25 ft; rear 0 ft (20 ft if next to R); sides 0 ft; height 40 ft/3 stories (20 ft within 50 ft of R); min. lot 10,000 sq ft; parking 1/300 sf; FAR 0.40 w/o CUP, 0.60 w/CUP in RC GP areas (§§ 18.48.050–.090).

C‑3 — Administrative & Professional Offices (§ 18.51)

• Uses: Offices, medical clinics, civic uses; SROs and supportive housing; CUP: pharmacy, restaurant for tenants/clients, parking lots, mixed‑use, multifamily (§§ 18.51.020–.030).
• Key standards: No yards (except match abutting R zone requirements), height 40 ft/3 stories; min. lot 7,500 sq ft; min. width 60 ft; parking 1/200 sf (§ 18.51.050).

C‑4 — Heavy Commercial (§ 18.49)

• Purpose: Wholesale, contractor yards, and other high‑intensity commercial that may impact residences (§ 18.49.010–.020).
• Uses: Wholesale/warehouse, building materials yards, trades shops, auto body, animal hospitals/kennels; SROs; other similar uses if compatible (§ 18.49.020).
• Key standards: Not found in retrieved materials.

C‑5 — Commercial Recreation (§ 18.54)

• Purpose: Resorts/lodges, motels, restaurants, general stores, service stations, campgrounds; traveler‑oriented uses (§ 18.54.010–.020).
• CUPs: Campgrounds, golf, MH parks, RV storage, mixed‑use/multifamily; accessory employee dwellings allowed (§ 18.54.030–.040).
• Key standards: 5‑acre min. lot; width 350 ft; front 25 ft, rear 20 ft, sides 20 ft; height 30 ft/2.5 stories; parking ratios per dwelling/lodging/employee (§ 18.54.050).

M‑1 — General Industrial & Extractive (§ 18.57)

• Purpose: Manufacturing, warehousing, processing, mining/ore reduction where not polluting (§§ 18.57.010–.020).
• Uses: Wide list of manufacturing/warehousing; employee‑service commercial; caretaker mobilehome; rail yards; airports; cannabis activities by CUP with indoor and mitigation limits (§§ 18.57.030–.040, .045).
• Key standards: Front 25 ft; rear 15 ft; sides 10 ft; lot ≥20,000 sq ft and ≥100 ft wide; parking per employee + loading; FAR ranges 0.4–1.2 with/without CUP by GP designation; special height limits near R/C boundaries (§§ 18.57.080–.120).

M‑2 — Light Industrial (§ 18.56)

• Purpose: Indoor, less‑intense manufacturing; limited outdoor storage as accessory (§ 18.56.010).
• Uses: Manufacturing/processing/assembly; wholesale/warehouse; truck terminals; labs; public/quasi‑public; similar compatible uses (§ 18.56.020).
• CUPs: Petroleum storage, junkyards, bottling, certain signs, FAR increases, indoor cannabis activities; hemp; more (§ 18.56.040).
• Key standards: Min. lot 0.5 acre; front 0 ft (25 ft for mobilehome); sides 0 ft (5 ft/story if next to R); rear 0 ft (10 ft if next to R); height 40 ft/3 stories; parking per employee + customer/loading; FAR ranges 0.4–1.2 based on GP (§ 18.56.050).

P — Public Districts (§ 18.72)

• Purpose: Land owned/used by public agencies for open space, parks, schools, utilities, facilities; relates zoning map to Countywide GP (§ 18.72.010–.020).
• Uses: Governmental buildings/uses per conformance with GP; caretaker unit by CUP (§ 18.72.030–.040).

Cross‑cutting land‑use rules you should know

• ADUs: Allowed in all residential and mixed‑use zones; if local standards conflict, state ADU law prevails (§ 18.78.340). See the County’s California ADU law.
• Short‑term rentals: Prohibited in every district unless permitted under Chapter 18.73; may be allowed as hosted rentals in OS, RR, RR‑0.5, R‑1, R‑2 with caps and operational standards (e.g., off‑street parking, quiet hours) (§§ 18.73.020–.030).
• Commercial cannabis: Always requires a CUP; only certain license types are potentially allowed and only in specific zones; additional buffers and noticing apply (§ 18.78.360).
• Pollution prohibited: Any use that pollutes a human or natural resource is prohibited in all zones (§ 18.78.320).
• Hydroelectric facilities: Conditional in all zones (with listed exemptions) (§ 18.78.330).
• Wireless facilities: CUP required in or within 300 ft of any residential district; also required in OS/C/ M districts when height would exceed allowed maximums (§ 18.76.060).
• Small wind energy: Conditionally allowed in all zones with minimum lot, height, setback, and noise standards (§ 18.79.100).
• Overlays that may change what you can do:
  • Architectural Design Control “D”: Adds design review and submittals; see Inyo County Design Review (§ 18.69.010–.050).
  • Snow Avalanche Hazard Overlay “SAHO”: Advises of avalanche risk; prohibits deflective structures that increase danger; otherwise follows underlying zoning (§§ 18.64.010–.050).
  • Nongroundwater‑neutral agricultural use overlay: Requires a CUP for agricultural uses in designated overdraft basins (§§ 18.67.010–.050).
  • Airport hazard controls (AH): Limits heights/uses around runways and approach surfaces; CUPs may be required (§§ 18.62.040–.070).

Snapshot tables

Residential and Rural districts (selected standards)

Commercial and Industrial (selected standards)

Process notes that affect “conditional” land uses

• Conditional uses are approved/disapproved by the Planning Commission; approvals can include conditions, time limits, and lapse if not used within a year (§§ 18.81.110–.140).
• For uses in design‑controlled areas, architectural review is an added prerequisite; see Inyo County Design Review (§ 18.69.060).

Special combined districts and overlays (when they matter)

• Precise Plan “PP”: Requires a Commission‑approved precise plan that sets yards, circulation, landscaping, signage, etc.; underlying district standards still apply (§§ 18.63.010–.080).
• Snow Avalanche Hazard “SAHO”: Keeps underlying uses/standards but adds avalanche safety constraints and recorded notice (§§ 18.64.010–.050).
• Architectural Design Control “D”: Creates a design review board and submittal criteria (§ 18.69.010–.050).

Practical cross‑references

• Parking ratios often appear inside district standards but can also be applied case‑by‑case by the Planning Director; see Inyo County Parking (e.g., C‑2 § 18.48.080; M‑1 § 18.57.080).
• Signs are permitted only per the sign code; coordinate early with Inyo County Signage where your district points to Chapter 18.75 (e.g., OS § 18.12.030; C‑1 § 18.45.040).
• Nonconforming uses/buildings are tightly constrained; see Inyo County Nonconforming Uses for what may continue, expand, be rebuilt, or must terminate (§§ 18.78.230–.290).

Checklist

• Confirm parcel zoning and any overlays on the County map (§ 18.03.070).
• Identify whether the proposed land use is listed as permitted or conditional in your district (e.g., R‑1 § 18.30.030; C‑2 § 18.48.020).
• If conditional, prepare for a Planning Commission CUP with conditions, timelines, and possible lapse (§§ 18.81.110–.140).
• Check objective standards: minimum lot size, setbacks, height, and any district‑specific density/FAR in the Inyo County Development Standards.
• Verify parking ratios and whether the Director sets a site‑specific requirement (e.g., C‑2 § 18.48.080; M‑1 § 18.57.080).
• If within a D, SAHO, groundwater‑neutral, or airport hazard area, add those overlay requirements (§§ 18.69.010; 18.64.010; 18.67.050; 18.62.040–.070).
• For homes, consider ADUs (state law prevails) and short‑term rental restrictions (§§ 18.78.340; 18.73.020–.030).
• Coordinate any required design review, signage, landscaping/screening early with Planning and Inyo County Signage and Inyo County Design Review.
• Ensure compliance with the California Building Standards Code for construction—separate from land use zoning.

Risks & Ambiguities

Plain-English Summary

In unincorporated Inyo County, what you can do with your land depends on its zoning district. Homes are mainly in R‑1, R‑2, R‑3, or RR; businesses in C‑districts; and industry in M‑districts. Each district lists permitted uses and has objective standards like setbacks, height, and parking. Some uses need a conditional use permit, and overlays (design control, avalanche, groundwater, airport) can add rules. ADUs are broadly allowed by state law, and short‑term rentals are tightly limited and require permits in specific zones.

Source References

• Title 18 Zoning — General provisions and districts (§§ 18.03.050–.100; § 18.03.060).
• OS Open Space (§§ 18.12.010–.040).
• RR Rural Residential and RR‑0.5 Starlite (§§ 18.21.010–.070; §§ 18.22.010–.050).
• R‑1, R‑2, R‑3 districts (§§ 18.30.010–.110; §§ 18.33.010–.090; §§ 18.34.010–.050).
• CB, C‑1, C‑2, C‑3, C‑4, C‑5 districts (§§ 18.44.010–.040; §§ 18.45.020–.090; §§ 18.48.010–.100; §§ 18.51.010–.050; § 18.49.020; §§ 18.54.010–.050).
• M‑1, M‑2 districts (§§ 18.57.010–.120; §§ 18.56.010–.050).
• Public district (§§ 18.72.010–.040).
• Conditional use procedures (§§ 18.81.110–.140).
• ADUs, hydroelectric, pollution prohibited (§§ 18.78.320–.340).
• Short‑term rentals (Chapter 18.73).
• Wireless facilities; small wind energy (§ 18.76.060; § 18.79.100).
• Overlays: SAHO (§§ 18.64.010–.050); design control (§ 18.69.010–.060); nongroundwater‑neutral ag (§§ 18.67.010–.050); airport hazard controls (§§ 18.62.040–.070).

Retrieved passages

• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 1) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 18.33.010.) High relevance show source text
• Inyo County Zoning Code (chapter to) High relevance show source text
• Inyo County Zoning Code (§ 18.57.030.) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 18.45.100.) High relevance show source text
• Inyo County Zoning Code (§ 18.30.030.) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 18.51.020.) High relevance show source text
• Inyo County Zoning Code (§ 18.48.050.) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 4) High relevance show source text
• Inyo County Zoning Code (§ 18.69.060.) High relevance show source text
• Inyo County Zoning Code (§ 4) Medium relevance show source text
• Inyo County Zoning Code (§ 1) Medium relevance show source text
• Inyo County Zoning Code (§ 18.63.070.) Medium relevance show source text
• Inyo County Zoning Code (§ 4) Medium relevance show source text
• CBC § 4 (§ 4) Medium relevance show source text
• Inyo County Zoning Code (§ 4) Medium relevance show source text
• Inyo County Zoning Code (§ 4) Medium relevance show source text
• Inyo County Zoning Code (§ 4) Medium relevance show source text

Cited sections

• Title 18 Zoning — General provisions and districts (§§ 18.03.050–.100; § 18.03.060). (Title 18)
• OS Open Space (§§ 18.12.010–.040). (§ 18.12.010)
• RR Rural Residential and RR‑0.5 Starlite (§§ 18.21.010–.070; §§ 18.22.010–.050). (§ 18.21.010)
• R‑1, R‑2, R‑3 districts (§§ 18.30.010–.110; §§ 18.33.010–.090; §§ 18.34.010–.050). (§ 18.30.010)
• CB, C‑1, C‑2, C‑3, C‑4, C‑5 districts (§§ 18.44.010–.040; §§ 18.45.020–.090; §§ 18.48.010–.100; §§ 18.51.010–.050; § 18.49.020; §§ 18.54.010–.050). (§ 18.44.010)
• M‑1, M‑2 districts (§§ 18.57.010–.120; §§ 18.56.010–.050). (§ 18.57.010)
• Public district (§§ 18.72.010–.040). (§ 18.72.010)
• Conditional use procedures (§§ 18.81.110–.140). (§ 18.81.110)
• ADUs, hydroelectric, pollution prohibited (§§ 18.78.320–.340). (§ 18.78.320)
• Short‑term rentals (Chapter 18.73). (Chapter 18.73)
• Wireless facilities; small wind energy (§ 18.76.060; § 18.79.100). (§ 18.76.060)
• Overlays: SAHO (§§ 18.64.010–.050); design control (§ 18.69.010–.060); nongroundwater‑neutral ag (§§ 18.67.010–.050); airport hazard controls (§§ 18.62.040–.070). (§ 18.64.010)
• InyoCounty_ZoningCode.md

• Official Inyo County code library