Bolthole Index

Inyo County, California

Building permits, zoning and land rules in Inyo County, California

23Index Score / 100
#55 of 58 in California

Unincorporated Inyo County, California requires building permits for residential and commercial construction, including homes, mobile-home installations, accessory structures and tiny houses1. Inyo County Planning administers zoning; inside Bishop, the city handles building permits and zoning234. Inyo County Environmental Health separately permits and inspects residential septic installations, subject to jurisdictional exceptions for tribal, state and some federal land56.

At a glance

Building permit
Required for commercial and residential construction in unincorporated Inyo County1
Zoning
County-administered; the parcel's district controls allowed uses, setbacks and lot standards27
Septic permits
Environmental Health handles residential installations; new and modified onsite systems need approval58
RV living
Disaster housing is temporary and conditional; ordinary long-term occupancy remains unconfirmed9
Tiny home
Allowed by right in unincorporated Inyo County, subject to building, utility and health requirements10
Minimum home size
No county-imposed minimum size for residential units in unincorporated Inyo County11
Owner-builder
Personal trade work is allowed, but permits and codes still apply; state contractor-license exemptions have separate conditions1213
Water wells
County permits cover new wells, casing work, abandoned-well destruction and certain deep borings, with listed exceptions14

Who to call

Building permits

Inyo County Public Works - Building & Safety

Building permits, plan review and inspections for unincorporated Inyo County

760-873-7857

buildingandsafety@inyocounty.us

301 W. Line St. Suite F, Bishop, CA 93514

Zoning

Inyo County Planning Department

Zoning, subdivision and environmental review for unincorporated Inyo County

760-878-0263

168 N. Edwards Street - Annex Building, Independence, CA 93526

Septic permits

Inyo County Environmental Health Department

Residential septic and water-well applications, permitting and inspections

760-878-0238

inyoehd@inyocounty.us

1360 N. Main St., Bishop, CA 93514

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Off-grid gear

Going off-grid in Inyo County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Inyo County, California?

Yes. Unincorporated Inyo County requires a building permit for commercial and residential construction, including new construction, mobile-home installation, accessory structures, tiny houses, remodeling, utility setup, grading for new construction, electrical and plumbing work, solar, reroofing and demolition1. County Title 14 applies to buildings and structures in unincorporated territory and adopts the most recent California Title 24 standards, subject to local amendments and lawful exemptions15. Permitted work must be inspected when complete or at specified construction stages, and remote locations may take longer to serve16. A required final inspection and Building Official approval generally come before permanent electric power or liquefied petroleum gas is connected; the ordinance provides limited temporary and early-service routes17. Inside Bishop, the city issues building permits for most construction; county building rules below apply to unincorporated land3. Residential septic installations remain an Environmental Health responsibility, with jurisdictional exceptions for tribal, state and some federal land56.

Who is the Inyo County building department, and how do you reach it?

Inyo County Public Works - Building & Safety is the permit, plan-review and inspection office for construction in the unincorporated county18. The office is at 301 W. Line St. Suite F, Bishop, CA 93514, and its phone number is 760-873-785718. Applicants may email permit applications to buildingandsafety@inyocounty.us1918. Land-use approval is a separate desk: the Inyo County Planning Department administers zoning, subdivision and environmental review and can be reached at 760-878-0263220. Residential septic and well applications go to Environmental Health through its online portal, not to Building & Safety21.

Does Inyo County have zoning?

Inyo County Planning administers zoning for unincorporated land; Bishop sets its own zoning inside city limits24. Residential septic installation approval remains with Inyo County Environmental Health, subject to jurisdictional exceptions56. The zoning map includes named districts and areas identified as unzoned, so check the parcel rather than assuming one countywide standard7. An R-1 building site generally requires at least 5,800 square feet and 50 feet of average width, with 25-foot front, 20-foot rear and 5-foot side yards2223. R-1 dwellings are limited to 35 feet and 2.5 stories, while accessory buildings are limited to 20 feet24. The OS zone generally requires 40 acres and 50-foot yards2526. OS principal buildings are limited to 30 feet or 2.5 stories, with a taller exception for farm and ranch buildings27. ADUs are permitted in county residential and mixed-use zones, need building permits, and remain subject to applicable dwelling standards; state ADU law prevails over conflicting county zoning rules28. Ask Planning to confirm the parcel’s district and overlays20.

How do septic permits work in Inyo County?

Inyo County Environmental Health administers onsite wastewater rules in unincorporated Inyo County and permits residential septic installations295. Submit the sewage-disposal application, plot plan and fee before construction; a new structure using septic must receive its building permit before the septic construction permit is issued68. Construction, repair, modification and abandonment of onsite wastewater or greywater systems need approval; qualifying contractor servicing is a limited permit exception8. New standard systems require at least 15,000-square-foot lots in existing developments or no more than 2 dwellings per acre in new developments; unsuitable conventional sites need engineered alternatives5. Alternatives also require operating permits8. Schedule staged construction inspections at least 48 hours ahead30. Servicing requires inspection and a report within 30 days, or 24 hours if failure is found; alternatives need inspections at least every 3 years or more often as specified by the manufacturer, and supplemental treatment needs annual monitoring31. New leaching and percolation systems are prohibited around Aspendell, Mountain View Estates, Rocking K and Bishop, with proposals reviewed by Water Board staff6. Only 9.1% of county soils lack severe conventional-drain-field limitations32.

Can you live in an RV or tiny home on your land in Inyo County?

We could not confirm a general rule allowing ordinary long-term RV occupancy on private land in Inyo County; ask Planning about the parcel and intended use20. Inyo County allows a permitted RV as temporary emergency housing after a qualifying disaster makes a primary home uninhabitable, for up to 18 months9. County-operated campground stays are limited to 15 days at a campground in any six-week period, with a 30-day permit available to campers age 62 and older; these limits do not establish private-land camping rights33. Tiny homes are allowed by right in unincorporated Inyo County, including as ADUs or JADUs, subject to building, utility and health requirements10. Inyo County imposes no minimum residential-unit size in unincorporated areas11. ADU utility connections depend on whether the unit is new or within an existing structure34. Residentially zoned property in unincorporated Inyo County allows only hosted short-term rentals of 30 days or less, requiring a Planning application and transient-occupancy-tax registration; RVs cannot serve as short-term rental dwellings3536.

Building a home in Inyo County: the steps, in order

  1. Ask Inyo County Planning to identify the parcel's zoning district, allowed residential use, setbacks, height limits and any subdivision issue73720.
  1. Check flood mapping before design; development in a special flood-hazard area requires a county development permit before work begins38.
  1. Confirm wastewater feasibility with Environmental Health: approved onsite treatment or a public-sewer connection is required, and connecting to sewer requires abandonment of the existing onsite system3921.
  1. Confirm the county permit path for a new well, casing work, abandoned-well destruction or a deep exploratory boring if the site lacks water service40.
  1. Submit plans and the building-permit application to Building & Safety by email; for a new structure using septic, obtain the building permit before Environmental Health issues the septic construction permit19188.
  1. If acting as owner-builder, document who will perform each trade; county permission to do personal trade work does not waive permits or safety codes12. California’s contractor-license exemption for owners doing their own work requires personal labor or wage-only employees and improvements not intended or offered for sale; separate conditions apply when hiring licensed contractors or improving a principal residence13.
  1. Arrange required staged and final inspections before permanent power or liquefied petroleum gas service1617.

What should you check before buying land in Inyo County?

Start with legal access, parcel boundaries, zoning and flood exposure. A driveway or comparable work in a state-highway right-of-way requires a Caltrans encroachment permit unless an identified exemption applies; county-road right-of-way work has a minimum application fee of $50 plus calculated fees4142. Water deserves equal attention because Inyo County averages about 6 inches of precipitation annually and has experienced severe drought in 44.8% of years4344. County well permits cover new wells, casing repair or modification, abandoned-well destruction and exploratory holes deeper than 25 feet; shallower specified test holes and several other activities are exempt1445. Confirm a reliable supply and septic feasibility before closing; only 9.1% of county soils avoid a severe conventional-drain-field rating32. Federal land makes up about 94.3% of Inyo County, so verify practical access across public land46.

Watch-outs

  • Inyo County lets an owner perform personal trade work, but this does not remove permit, inspection or code requirements; California's contractor-license exemption is separate and conditional1213.
  • Tiny homes are allowed by right and Inyo County sets no minimum residential-unit size in unincorporated areas, but building permits and applicable utility and health requirements still apply10111.
  • Composting and incinerating toilets need Environmental Health's permission, greywater systems need county permits, chemical toilets are only temporary or occasional, and permanent holding tanks need specific written approval47.
  • Inyo County's disaster rule allows a permitted RV as temporary emergency housing for up to 18 months, but ordinary long-term RV occupancy on private land remains unconfirmed; ask Planning for a parcel-specific answer920.

Sources

  1. Building and Safety | Inyo County California, quoted and re-checked
  2. Planning Department, quoted and re-checked
  3. Bishop: When is a Building Permit Required? (Inyo County), quoted and re-checked
  4. Bishop: Title 17 - ZONING, R-1 Single-Family Residential District, Property development standards (Inyo County), quoted and re-checked
  5. Residential Septic Systems | Inyo County California, quoted and re-checked
  6. Residential Septic Systems, quoted and re-checked
  7. Inyo County Zoning Ordinance, quoted and re-checked
  8. Chapter 7.12: Onsite Wastewater Treatment Systems, quoted and re-checked
  9. Chapter 18.83: Temporary Emergency Dwellings Following a Disaster, quoted and re-checked
  10. Planning Commission Packet 02.26.25, quoted and re-checked
  11. Planning Commission Packet 02.26.25, quoted and re-checked
  12. Ordinance 1255 — Title 14 Building and Safety, quoted and re-checked
  13. California Business and Professions Code Section 7044, quoted and re-checked
  14. Water Wells and Environmental Drilling, quoted and re-checked
  15. Ordinance 1255, Title 14 Building and Safety, quoted and re-checked
  16. Inyo County Housing Element Staff Report, quoted and re-checked
  17. Inyo County Ordinance 1255 — Title 14 Building and Safety, quoted and re-checked
  18. Inyo County Public Works - Building & Safety (inyocounty.us)
  19. Building and Safety, quoted and re-checked
  20. Inyo County Planning Department (inyocounty.us)
  21. Inyo County Environmental Health Department (inyocounty.us)
  22. Chapter 18.30 R-1 Districts—One Family Residences, quoted and re-checked
  23. Chapter 18.30 R-1 Districts—One Family Residences, quoted and re-checked
  24. Chapter 18.30 R-1 Districts—One Family Residences, quoted and re-checked
  25. Chapter 18.12 OS (Open Space) Zone, quoted and re-checked
  26. Chapter 18.12 OS (Open Space) Zone, quoted and re-checked
  27. Chapter 18.12 OS (Open Space) Zone, quoted and re-checked
  28. Building an ADU, quoted and re-checked
  29. Residential Septic Systems, quoted and re-checked
  30. Chapter 7.12: Onsite Wastewater Treatment Systems, quoted and re-checked
  31. Inyo County Local Area Management Plan, quoted and re-checked
  32. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  33. Camping Information, quoted and re-checked
  34. Inyo County ADU Guide Book, quoted and re-checked
  35. Short Term Rental Regulation, quoted and re-checked
  36. Chapter 18.73: Short-Term Rental of Residential Property, quoted and re-checked
  37. Planning Department, quoted and re-checked
  38. Chapter 14.28 Flood Damage Prevention Ordinance, quoted and re-checked
  39. Chapter 7.12: Onsite Wastewater Treatment Systems, quoted and re-checked
  40. Water Wells and Environmental Drilling, quoted and re-checked
  41. Encroachment Permits, quoted and re-checked
  42. Application for an Encroachment Permit, quoted and re-checked
  43. Annual precipitation: Bolthole Index county data
  44. Share of years in severe drought: Bolthole Index county data
  45. Water Wells and Environmental Drilling, quoted and re-checked
  46. Federal land share: Bolthole Index county data
  47. Chapter 7.12: Onsite Wastewater Treatment Systems, quoted and re-checked

Written October 10, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like all 6 of its neighbors, Inyo County has countywide zoning.

RuleInyo CountyTulare CountyKern CountyFresno CountyMadera CountyKings CountyMono County
Building permitRequiredRequiredRequiredRequiredLimitedRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsICEHDCounty Env. Health Div.County Env. Health Div.County Env. Health Dept.County Env. Health Div.County environmental healthCounty Env. Health

County locator

Inyo County in California

23
County map
Inyo County highlighted among the California counties · colored by Index score

How Inyo County scores

Seclusion81100% ev.
Self-Sufficiency10100% ev.
Admin Boringness41100% ev.
Durability12100% ev.
Property Autonomy56100% ev.
Carry Cost73100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$533kTypical home
0.7%Property tax
$961Land / acre
6"Annual rain
44.8% of yrsSevere drought
54.4 / yr (+20.3)Mid-century 100°F days
74.8 daysMid-century dry spell
0.95" (+7.4%)Mid-century 1-day rain
1.09×Wildfire change factor
100%Forward climate coverage
$1,213Home insurance / yr
3.4% / yrInsurance growth
1.35%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
3,133Radius comparison (15 mi)
1.8People / sq mi
94.3%Federal land
53.8%Land at 15% slope or less
9.1%Soils rated "not limited" for septic (strict USDA rating)
573,841 acWorkable land screen
3.9%Wooded land
11.9 tonsBiomass / forest ac
61.3°FAvg temp

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Cities and towns in Inyo County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Answers from the rulebook for Inyo County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Inyo County rules

  • Building permitRequired

    Commercial and residential construction and the other listed work in unincorporated Inyo County.

    • The county webpage lists examples of work requiring a building permit, including all commercial and residential construction, new construction, mobile-home installation, accessory structures, tiny houses, additions and alterations, utilities, electrical, plumbing, and other listed work.
    • Title 14 applies to buildings and structures in the unincorporated territory of Inyo County, except where exempted by the California Building Code, state law, or federal law.
    • The county page describes examples rather than an exhaustive list.
    “The provisions of this Title shall apply to all buildings and structures in the unincorporated territory of Inyo County”
  • Owner-builder exemptionConditional

    An owner performing their own building, mechanical, plumbing, or electrical work in unincorporated Inyo County.

    • The work must be performed in compliance with Title 14 and applicable building and safety codes.
    • This provision concerns the ability to perform the work personally; it does not exempt the project from otherwise applicable permit requirements.
    • Other California Building Code, state-law, or federal-law requirements may apply.
    “provided, however, that nothing in the codes adopted in this Chapter shall be construed to prevent any person from performing his own building, mechanical, plumbing, or electrical work when performed in compliance with this Chapter.”
  • Building code adoptedAdopted (with conditions)

    Buildings and structures in the unincorporated territory of Inyo County under County Code Title 14.

    • Title 14 applies to all buildings and structures in the unincorporated territory of Inyo County, except to the extent a building or structure is exempted from compliance by the California Building Code, state, or federal law.
    • All parts of the most recent California Code of Regulations, Title 24, are adopted subject to the modifications and amendments in Title 14.
    • The County adopted local modifications because of local climatic, geological, or topographical conditions, including snow loads, freezing temperatures, high winds, and remote mountain terrain.
    • Ordinance 1255 was passed and adopted on May 12, 2020 and states that it takes effect and is in full force and effect thirty days after adoption.
    • Permit fees are set by resolution of the Board of Supervisors and may not exceed the actual cost of the regulatory program.

    Title 24 adoption: all parts of the most recent California Code of Regulations, Title 24 (subject to the modifications and amendments contained in Title 14) · ordinance adoption date: 2020-05-12 (Ordinance 1255 states effectiveness begins thirty days after adoption)

    “All Parts of the most recent version of the California Code of Regulations, Title 24, are hereby adopted in the County of Inyo as a matter of state law, subject to the modifications and amendments contained in this Chapter.”
  • InspectionsRequired

    Buildings or structures in unincorporated Inyo County for which a permit is required, before permanent electric power or liquefied petroleum gas is connected.

    • The structure must comply with all applicable ordinances and codes and receive Building Official approval in a final inspection as required under the California Building Code before permanent electric power lines or liquefied petroleum gas are connected.
    • Temporary power poles may be erected and used when approved by the Building Official, but temporary electrical connections and facilities must be removed before permanent lines are connected.
    • Where no building is located on a lot or parcel, no permit may be issued for an electrical connection, septic system, or accessory building before a permit for a primary structure is issued.
    • Temporary power poles require all plans to be submitted, all plan-check, building-permit, and special fees paid in full, installation under Article 590 of the current California Electrical Code, and are valid for a maximum of six months unless extended by the Building Official for additional six-month periods when construction has commenced and reasonable progress has been made.
    • Permanent electrical service may be connected before final inspection under the stated Temporary Power Agreement and disconnect-order conditions, including the project being ninety percent complete and meeting building-division requirements.
    • Non-residential machinery service has separate conditions, including all required permits and fees, a Non-Residential Power Agreement, inspection authority, prohibition on use for human habitation, specified zoning, and a maximum two-year permit validity.
    • The County Building and Safety inspection page states that inspection requests may be scheduled through the form or by contacting the department.

    temporary power pole validity: 6 months (The Building Official may extend it for additional six-month periods if construction has commenced and reasonable progress has been made.) · project completion for early permanent electrical service: >= 90 percent (The applicant must complete the Temporary Power Agreement and execute a disconnect order.) · non-residential machinery-service permit validity: 2 years

    “It is unlawful for any person, including utility companies, to connect electric power lines or liquefied petroleum gas permanently”
    One more reviewed finding on this topic
    • Required — Work in unincorporated Inyo County for which a building permit has been issued.
      “All work for which a building permit is issued must be inspected at the time of completion and/or at specified stages of construction.”
  • County-wide zoningPresent (with conditions)

    County-administered zoning under the Inyo County Zoning Ordinance and related county planning processes.

    • The Inyo County Planning Department administers the County's zoning ordinances.
    • Applicability to incorporated cities may differ because local land-use policies and regulations are adopted by the governing bodies of individual cities and counties.
    “We serve as staff to the Inyo County Planning Commission; administer the County's Zoning, Subdivision, Environmental Review, and Surface Mining Reclamation Ordinances, and provide information to the public.”
  • Local zoningVaries (with conditions)

    Aggregate local zoning across Inyo County, including county-administered zoning and zoning or land-use regulations adopted by incorporated cities within the county.

    • The County administers its County zoning ordinances.
    • The official county planning guide states that land-use decisions are delegated to city councils and boards of supervisors of individual cities and counties, and that local decision makers adopt their own land-use policies and regulations.
    • A parcel's applicable zoning authority depends on whether it is subject to county jurisdiction or an incorporated city's jurisdiction.
    “However, the State is seldom involved in local land use and development decisions; these have been delegated to the city councils and boards of supervisors of the individual cities and counties. Local decision makers adopt their own sets of land use policies and regulations based upon the state laws.”
  • Zoning districtsPublished

    County zoning districts and zoning-map boundaries in territory outside incorporated cities.

    • The ordinance identifies districts including unzoned areas, open space, agricultural, residential, commercial, industrial, precise-plan, planned-unit-development, public, and scenic-highway districts.
    • District boundaries are shown on the County of Inyo Zoning Map adopted by the County Supervisors.
    • The zoning map is on file with the County Clerk or Planning Commission.
    • If a district boundary is uncertain, the County Supervisors determine its location upon written application or on their own motion.
    • Uses, structures, and permits must comply with the regulations of the applicable district.
    “ZONING MAP. The Districts established an:1 the boundaries of such Districts are shown upon the map entitled "Zoning Map of the County of Inyo"”
  • Minimum dwelling sizeNone

    County-imposed minimum size for residential dwelling units in unincorporated Inyo County.

    • The County source expressly states that the County does not regulate the minimum size of residential units.
    • Applicable California Building Code, permitting, utility, septic, and other health and safety requirements still apply.
    • Incorporated municipalities may impose separate rules.
    “Tiny Homes are currently not defined in the County code. They are allowed by right as the County does not regulate the minimum size of residential units. They are also allowed as ADU/JADUs. To make tiny home development more accessible the County shall update the zoning code to include a definition of Tiny Homes.”
  • Minimum lot sizeSpecified

    Building sites in the county R-1 one-family residence district.

    • The rule states 'Except as otherwise specified'; other Title 18 provisions may establish different minimums.

    minimum building-site area: >= 5800 square feet (Except as otherwise specified) · minimum average width: >= 50 feet (Except as otherwise specified)

    “Except as otherwise specified, every building site in an R-1 district shall have an area not less than five thousand eight hundred square feet and an average width not less than fifty feet.”
    One more reviewed finding on this topic
    • Specified — Parcels in the county OS Open Space zone.
      “Minimum parcel size, forty acres, except when a greater minimum area is established pursuant to Section 18.78.055;”
  • SetbacksSpecified

    Buildings in the county R-1 one-family residence district.

    • The front-yard rule is subject to exceptions in the general regulations.
    • Side-yard rules distinguish corner lots from interior side lot lines.

    front yard: 25 feet (Subject to exceptions set forth by the general regulations) · rear yard: 20 feet · street-side side yard: 5 feet (Along the street lot line of a corner lot) · interior side yard: 5 feet (Along an interior side lot line)

    “The minimum requirements for yards in R-1 districts shall be as follows: Depth of front yard, subject to the exceptions set forth by the general regulations, twenty-five feet; Depth of rear yard, twenty feet; Width of side yard along the street lot line of a corner lot, five feet; Width of side yard along interior side lot line, five feet.”
    One more reviewed finding on this topic
    • Specified — Buildings in the county OS Open Space zone.
      “The following are minimum standards established for development in the OS zone, except as otherwise provided in this title or as modified for conditional uses: Front yard, fifty feet; Rear yard, fifty feet; Side yard, fifty feet;”
  • Building heightSpecified

    Buildings in the county OS Open Space zone.

    • Farm or ranch buildings may reach sixty feet; other accessory buildings are limited to two stories or twenty-five feet.
    • Standards may be modified for conditional uses.

    maximum principal-building height: <= 30 feet (Or two and one-half stories) · maximum principal-building stories: <= 2.5 stories · maximum accessory-building height: <= 25 feet (Except sixty feet for farm buildings or ranch buildings) · maximum accessory-building stories: <= 2 stories

    “Maximum height of buildings: Principal buildings, two and one-half stories or thirty feet, Accessory buildings, two stories or twenty-five feet, except sixty feet for farm buildings or ranch buildings;”
    One more reviewed finding on this topic
    • Specified — Dwellings and accessory buildings in the county R-1 district.
      “No dwelling in an R district shall have more than two and one-half stories or a height in excess of thirty-five feet. No accessory building shall have a height in excess of twenty feet.”
  • Living in an RVProhibited

    Use of an RV as a short-term rental dwelling in Inyo County; the county code defines short-term rental activity as residential-property rental for 30 days or less.

    • The prohibition is part of the county short-term-rental regulations.
    • The dwelling unit must otherwise comply with applicable building-and-safety and environmental-health requirements.
    • The prohibition also applies to non-habitable structures, tents, travel trailers, treehouses, yurts, and other structures not intended for primary occupancy.

    short-term rental duration: <= 30 days or less

    “"Short-term rental" means to provide transient lodging in a dwelling unit, for compensation, for a period of 30 consecutive calendar days or less. "Short-term rental" does not include transient lodging in county-approved hotels and motels. [...] Short-term rentals shall not be permitted in dwelling units that are not compliant with applicable building and safety and/or environmental health requirements, or in non-habitable structures, tents, travel trailers, RVs, treehouses, yurts, or other provisions or structures not intended for primary occupancy.”
    One more reviewed finding on this topic
    • Temporary only (with conditions) — Use of a recreational vehicle as a temporary emergency dwelling by an Inyo County resident whose primary residence was rendered uninhabitable by a disaster.
      “"Temporary emergency dwelling (TED)" shall mean a recreational vehicle as defined in Section 18.06.460 of this code or any of the following: a recreational vehicle as described in Health and Safety Code Section 18010; a camper as defined in Vehicle Code Section 243; a camp trailer as defined in Vehicle Code Section 242; a fifth-wheel travel trailer as defined in Vehicle Code Section 324; a housecar as defined in Vehicle Code Section 362; or a mobilehome that has been approved pursuant to Title 25 of the California Code of Regulations that is left on its transportation chassis and is not temporarily or permanently affixed to the land. [...] Any individual in Inyo County whose primary residence has been rendered uninhabitable by a disaster shall be permitted to utilize a TED as a dwelling unit for a period of eighteen months.”
  • Camping on your landLimited

    Camping at Inyo County-operated campgrounds.

    • Camping stay is limited to 15 days at any one campground in any six-week period.
    • A 30-day camping permit is available to people age 62 and older.
    • Camping fees and rules are posted at each campground.
    • The source addresses County-operated campgrounds and does not establish a rule for all private land countywide.

    maximum stay: 15 days at any one campground in any six-week period (A 30-day camping permit is available to people 62 years of age and older.)

    “~ Camping stay is limited to 15-days at any one campground in any six-week period. ~ A 30 day camping permit is available to people 62 years of age and older.”
  • Tiny homesAllowed

    Tiny-home occupancy and development under Inyo County land-use rules in unincorporated Inyo County.

    • The County source states that tiny homes are allowed by right.
    • Tiny homes are also allowed as ADU/JADUs.
    • Applicable California Building Code and other building, utility, and health requirements still apply.
    • Incorporated municipalities may impose separate rules.
    “Tiny Homes are currently not defined in the County code. They are allowed by right as the County does not regulate the minimum size of residential units. They are also allowed as ADU/JADUs. To make tiny home development more accessible the County shall update the zoning code to include a definition of Tiny Homes.”
  • Manufactured homesLimited

    Manufactured or modular homes treated as mobilehomes in the C-5 Commercial Recreation zone and used as employee dwellings or in a mobilehome park.

    • Inyo County treats modular and manufactured houses as mobilehomes, while excluding recreational vehicles from the mobilehome definition.
    • In the C-5 zone, mobilehomes may be used for dwellings of persons regularly employed on the premises for commercial recreational activities.
    • A mobilehome park is a conditional use in the C-5 zone.
    • The cited sources do not establish unrestricted manufactured-home occupancy in all county zoning districts.
    “Dwellings of persons regularly employed on the premises for commercial recreational activities. Mobilehomes may be used for this purpose;”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units in Inyo County residential and mixed-use zones.

    • ADUs are permitted in all residential and mixed-use zones.
    • The County zoning code's rules for principally permitted dwelling units in residential and mixed-use zones apply to ADUs.
    • State ADU law prevails if County zoning regulations conflict with state law.
    • The County public guidance states that a building permit is required.
    • The County guidance states that attached or detached ADUs require one parking space for newly constructed units unless the unit is within one-half mile of public transit, created within an existing building, in a historic district, or within one block of a car-share option.
    • JADUs have separate rules, including a 500-square-foot maximum and an owner-occupancy requirement.

    maximum detached ADU size: <= 1200 square feet · maximum attached ADU size: 1,200 square feet or 50% of the floor area of the primary residence square feet / percentage · minimum separation between detached structures: >= 10 feet · minimum rental term: >= 30 days (Short-term rental requires a Planning Department permit; pre-approved-plan ADUs are ineligible for short-term rental permits.)

    “Accessory dwelling units ("ADUs") are permitted in all residential and mixed use zones. Regulations found in this title regarding principally permitted dwelling units in the residential and mixed use zones apply to ADUs; provided, however, that if such regulations conflict with state law regarding ADUs, state law shall prevail.”
  • Who permits septicCounty

    Installation of residential septic systems in Inyo County.

    • Septic system design must comply with the Uniform Plumbing Code.
    • For new systems, the Inyo County Local Area Management Plan applies.
    • The cited page states that new standard systems are permitted in existing developments when lot size is at least 15,000 square feet, or in new developments when there are no more than two dwellings per acre.
    • Where a conventional system is unacceptable, an engineered alternative system is required.

    minimum lot size for new standard systems in existing developments: >= 15000 square feet · maximum dwelling density for new standard systems in new developments: <= 2 dwellings per acre

    “The Inyo County Environmental Health Department (ICEHD) is responsible for permitting and inspecting the installation of residential septic systems.”
    2 more reviewed findings on this topic
    • County — Onsite wastewater treatment systems in unincorporated Inyo County.
      “The Inyo County Environmental Health Department (ICEHD) is responsible for permitting and inspecting the installation of residential septic systems.”
    • County — Residential septic-system permitting and inspection in Inyo County.
      “The Inyo County Environmental Health Department (ICEHD) is responsible for permitting and inspecting the installation of residential septic systems.”
  • Septic permitLimited

    Residential onsite wastewater treatment systems and septic systems in Inyo County where the Inyo County Environmental Health Department is the administering authority.

    • Before construction begins, an Application to Construct Sewage Disposal System must be submitted to and approved by the Administrative Authority.
    • A completed application, plot plan, and application fees are required.
    • The LAMP states that county Administrative Authority jurisdiction is limited or nonexistent for officially designated Native American Reservations, State of California facilities, and some federal lands and facilities; federal jurisdiction varies by agency and situation.
    • New standard systems are permitted under the LAMP when existing developments have lots of at least 15,000 square feet or new developments have no more than two dwellings per acre.
    • Alternative or engineered systems are required where conventional-system criteria cannot be met.
    • New leaching and percolation systems remain prohibited in areas around Aspendell, Mountain View Estates, the Rocking K Subdivision, and the City of Bishop; proposed systems in those areas are reviewed by Water Board staff.
    • The LAMP does not include OWTS with projected wastewater flow over 10,000 gallons per day or specified high-strength wastewater systems requiring individual Water Board waste-discharge requirements or a waiver.

    minimum lot size in existing developments: >= 15000 square feet · maximum dwelling density in new developments: <= 2 dwellings per acre · projected wastewater flow excluded from LAMP: > 10000 gallons per day (Requires individual Water Board waste-discharge requirements or waiver)

    “Before any construction begins, an “Application to Construct Sewage Disposal System” must be submitted to and approved by the AA.”
    2 more reviewed findings on this topic
    • Required — Construction, reconstruction, repair, modification, destruction, abandonment, or use of an onsite wastewater treatment system or greywater system in unincorporated Inyo County.
      “Before any construction begins, an “Application to Construct Sewage Disposal System” must be submitted to and approved by the AA.”
    • Required — Construction, reconstruction, repair, modification, destruction, abandonment, covering, concealment, or use of an OWTS or greywater system in Inyo County.
      “No person shall construct, reconstruct, repair, modify, destroy or abandon any OWTS or greywater system, or any portion thereof, without having first obtained a permit from the AA.”
  • Septic inspectionLimited

    Construction of residential conventional, alternative, or engineered onsite wastewater treatment systems in areas under Inyo County Administrative Authority jurisdiction.

    • Construction inspections are required at various stages.
    • The applicant must contact the Administrative Authority to schedule inspections after septic-tank installation, after leach lines are dug and before rock or pipe installation, and after leach lines are installed.
    • Alternative or engineered systems may require additional inspections for electrical/alarm systems, pressure distribution, and other alternative-system requirements.
    • The LAMP states that county Administrative Authority jurisdiction is limited or nonexistent for officially designated Native American Reservations, State of California facilities, and some federal lands and facilities; federal jurisdiction varies by agency and situation.
    • After all construction inspections are successfully completed, the application is finalized and copies are sent to the owner, County Assessor's Office, and Administrative Authority files.

    permit review response period: 10 working days (Director may waive or extend the period if appropriate)

    “Construction inspections are required during various stages of construction. It is the applicant’s responsibility to contact the AA to schedule construction inspections”
    2 more reviewed findings on this topic
    • Required — OWTS servicing and alternative or supplemental-treatment systems in unincorporated Inyo County.
      “The report must be submitted to the AA within 30 days of the date of the servicing/inspection.”
    • Required — OWTS construction in Inyo County.
      “Construction inspections are required during various stages of construction. It is the applicant’s responsibility to contact the AA to schedule construction inspections for:”
  • Off-grid sanitationLimited

    Off-grid sanitation methods, including chemical toilets, composting or incinerating toilets, holding tanks, and private OWTS in Inyo County.

    • Any structure producing wastewater must have adequate treatment through an approved OWTS or connection to a public sewer.
    • Chemical toilets may be used only temporarily or occasionally.
    • Composting and incinerating toilets require permission of the administrative authority and must conform to ANSI/NSF Standard 41 and NSF P157, respectively.
    • Holding tanks are prohibited as a permanent sewage-disposal method unless specifically approved in writing by the administrative authority.
    • New cesspools are not allowed.
    • Greywater systems are allowed only under California Plumbing Code requirements and require county permitting under § 7.12.040.
    “Chemical toilets may only be used on a temporary and/or occasional basis.”
  • Well permitRequired

    Well construction, casing repairs or modifications, abandoned-well destruction, deep exploratory holes, and conversion of oil/gas or geothermal wells for water-well use in Inyo County.

    • The Inyo County Environmental Health Department issues permits to appropriately licensed California contractors.
    • Permit-required activities include construction of a new well; repairs or modifications to the casing of existing wells; destruction of abandoned wells; exploratory holes for soil testing, monitoring, or seismic exploration greater than twenty-five feet deep; and conversion of oil and gas or geothermal wells for use as a water well.
    • A complete permit application and accurate plot plan are required for review.
    • For multiple excavations, an individual application is required for each proposed bore hole, and each permit authorizes only one boring as proposed and approved.
    • Deviations require written approval before execution and may require updating and resubmitting the permit application and plot plan.
    • Projects with multiple excavations or extenuating circumstances may require a work plan.
    • The applicant must sign and return the indemnification document required by Inyo County Code section 14.24.052 before a permit can be issued.

    exploratory-hole permit threshold: > 25 feet (holes less than twenty-five feet deep are listed as not requiring a permit)

    “Activities that require a permit include: Construction of new well”
    2 more reviewed findings on this topic
    • Limited — Water-well construction, casing repair or modification, abandoned-well destruction, qualifying exploratory holes, and conversion of oil, gas, or geothermal wells for water use in Inyo County.
      “The Inyo County Environmental Health Department issues permits to appropriately licensed California contractors for a variety of drilling activities.”
    • Not required — Specified drilling activities in Inyo County that the county page expressly excludes from its well-permit requirement.
      “The following activities do not require a permit:”
  • Mandatory utility hookupConditional

    ADUs and JADUs addressed by the Inyo County ADU Guide Book.

    • Inyo County may allow ADUs or JADUs in areas where septic and well can be provided.
    • Depending on the type of ADU proposed, new or separate utility connections may be required, including water, sewer, gas, and electricity.
    • For an ADU or JADU contained within an existing, developed single-family residence or accessory structure, new or separate water and sewer connections are not required and related connection fees or capacity charges cannot be imposed.
    • For an ADU or JADU constructed at the same time as a new single-family dwelling, new or separate water and sewer connections may be required.
    • Connection or capacity charges for those new or separate connections must not exceed a reasonable cost for providing the service.
    “Depending on the type of ADU proposed, new or separate utility connections may be required including water, sewer, gas, and electricity, which can add connection fees or capacity charges.”
    2 more reviewed findings on this topic
    • Conditional — Structures producing wastewater in unincorporated Inyo County.
      “Wastewater treatment shall be accomplished by means of an approved OWTS or connection to a public sewer.”
    • Sewer (with conditions) — Structures in Inyo County that produce wastewater.
      “Any structure, regardless of use, that produces wastewater shall have adequate wastewater treatment as required by the California Plumbing Code. Wastewater treatment shall be accomplished by means of an approved OWTS or connection to a public sewer.”
  • Subdividing landRegulated (with conditions)

    Division of land and subdivision mapping in unincorporated Inyo County.

    • The Inyo County Planning Commission acts as advisory agency and may approve, conditionally approve, or disapprove tentative maps and certificates of compliance.
    • Minimum subdivision lot sizes follow Title 18 zoning standards.
    • Cul-de-sac lot frontage must be at least forty feet.

    minimum cul-de-sac lot frontage: >= 40 feet

    “For subdivision purposes, the minimum lot sizes shall be the same as shown in Title 18 of this code. (Zoning ordinance). See Title 18 for minimum lot sizes. Lot design shall meet the standards as shown in Title 18 of this code. Lot frontage on cul-de-sacs shall be a minimum of forty feet.”
  • Building in a floodplainRequired

    Construction or other development, including manufactured-home placement, in an area of special flood hazard in unincorporated Inyo County.

    • The chapter applies to all areas of special flood hazards within the County of Inyo.
    • The adopted FEMA FIS and FIRMs for the unincorporated areas of Inyo County are effective December 3, 2020, together with subsequent amendments or revisions.
    • Applications may require scaled plans showing location, dimensions, elevations, structures, fill, storage, drainage, utilities, flood elevations, floodway location, foundation details, certifications, and watercourse alterations.
    • The site must comply with other applicable regulations, and more stringent overlapping restrictions prevail.
    • The Public Works Department director administers and enforces the chapter.

    FEMA FIS and FIRM effective date: 2020-12-03 (Subsequent amendments or revisions also apply) · maximum cumulative base-flood water-surface increase where no floodway is designated: <= 1 foot

    “A development permit shall be obtained before any construction or other development, including placement of manufactured homes, begins within any area of special flood hazard established in Section 14.28.070.”
  • Short-term rentalsLimited

    Short-term rental of residentially zoned property for 30 days or less in the unincorporated county.

    • Only hosted short-term rentals may operate on residentially zoned property.
    • The applicant must apply to the Planning Department.
    • The applicant must register with the Treasurer Tax Collector to collect and pay Transient Occupancy Tax.
    • The hosted-rental requirements call for a completed application, project description, ownership proof, insurance, owner information, off-street parking, emergency access, trash-receptacle location, interior and exterior site plans, tax registration, posted rules, a 300-foot owner list, and neighborhood acknowledgments.
    • On-street parking is prohibited.
    • Outdoor amplified sound and outdoor fires are prohibited; quiet hours are 9:00 p.m. to 7:00 a.m.; pets must be secured and nuisances are prohibited.

    short-term rental duration: <= 30 days or less · neighbor acknowledgment radius: 300 feet (Reasonable attempts must be documented if signatures cannot be obtained) · quiet hours: 9:00 p.m. to 7:00 a.m.

    “On February 11, 2020, The Board of Supervisors Updated the Short-term Rental Ordinance allowing only hosted short-term rentals to operate on residentially zoned property.”
  • Permit feesPublished (with conditions)

    Encroachment permits for work in the right-of-way of Inyo County roads.

    • A minimum permit fee of $50.00 is required with all applications.
    • Additional fees are calculated for each permit and are payable before issuance.

    minimum permit fee: 50 USD (Additional fees may apply.)

    “Minimum Permit fee of $50.00 is required with all applications. Additional Fees will be calculated for each permit, and payable before the permit is issued.”
  • Permit processPublished (with conditions)

    County building-permit applications and review in Inyo County.

    • The Building and Safety Department provides permitting, plan review, and inspection services.
    • Permit applications may be submitted by email to buildingandsafety@inyocounty.us.
    “We provide permitting, plan review, and inspection services to help you complete your project according to established standards. Permit applications may be submitted via email to buildingandsafety@inyocounty.us.”

California rules that apply here

  • Certificate of occupancyRequired

    Completed construction projects within HCAI jurisdiction involving California health facilities.

    • The HCAI Compliance Officer issues the project-completion Substantial Compliance or Certificate of Occupancy once required conditions are met.
    • The stated examples include delivery of all test reports to the Inspector of Record, clearance of outstanding items, and completion of the Testing, Inspection and Observation Program.
    • Once construction is completed, the certificate of occupancy allows the owner to apply to the Department of Health Services for a license to operate the health facility.
    “Issues the certificate of occupancy and/or construction final.”
  • Driveway accessLimited

    Driveways and comparable access work located within, under, or over a California State highway right-of-way in Inyo County.

    • An encroachment permit is required unless the work falls within an identified exemption, including work under contract with Caltrans, certain Caltrans service contracts, a delegated maintenance agreement, authorized work in non-operating State highway right-of-way, or activity authorized by the California Vehicle Code that does not affect highway operation or safety.
    • Applicants must submit a current Standard Encroachment Permit Application with supporting documentation such as plans, a location map, environmental documentation, a letter of authorization, surety bonds, liability insurance, and applicable fees.
    • Fees vary by encroachment type and staff hours; a deposit is typically required. The Standard Hourly Rate is $181 per hour effective 2026-01-01.
    • The appropriate District Encroachment Permits Office has jurisdiction over the proposed encroachment site; Caltrans District 9 serves the Bishop area.

    standard hourly rate: 181 USD/hour (Effective 2026-01-01; fees vary by encroachment type and review or inspection time) · permit application decision deadline: <= 60 calendar days (After the application submittal is determined complete under Streets and Highways Code section 671.5(a))

    “An encroachment permit must be obtained for all proposed activities related to the placement of encroachments within, under, or over the State highway rights of way. Some examples of work requiring an encroachment permit are utilities, excavations, encroachment renewals, advertisements (when allowed by statute), vegetation planting or trimming, surveys, mailboxes, driveways, installation or removal of tire chains for compensation, special events, and commercial filming activities.”
    One more reviewed finding on this topic
    • Required — Driveways and driveway connections involving proposed encroachments within, under, or over State highway rights of way.
      “An encroachment permit must be obtained for all proposed activities related to the placement of encroachments within, under, or over the State highway rights of way.”
  • Campground & park staysLimited

    Occupancy and use of manufactured homes and mobilehomes in California mobilehome parks and other locations subject to HCD jurisdiction.

    • HCD administers titling and registration for manufactured homes and mobilehomes.
    • HCD-inspected mobilehome parks are subject to health and safety enforcement where local government has not assumed enforcement.
    • Manufactured/mobilehome park regulations address construction, use, maintenance, and occupancy.
    • Separate local land-use, building, fire, health, and utility requirements may apply.
    “MHs may be occupied outside or inside of mobilehome parks and installation and approval for occupancy is governed by the Mobilehome Parks Act (MPA), HSC Sections 18200, et seq., and Title 25, CCR Sections 1000, et seq.”
    One more reviewed finding on this topic
    • Limited — Occupancy and use of recreational vehicles in California special occupancy parks and designated RV sections of mobilehome parks.
      “Unless otherwise allowed by a local ordinance, RVs generally may be occupied only in mobilehome parks or special occupancy parks governed by the Mobilehome Parks Act”
  • county zoning authorityGeneral

    California county legislative bodies' authority to adopt zoning ordinances regulating buildings, structures, land uses, lots, yards, open space, lot coverage, intensity of use, parking, loading, and setbacks within county jurisdiction, including unincorporated areas.

    • The authority is exercised pursuant to Government Code Chapter 4, Zoning Regulations.
    • The statute separately authorizes city legislative bodies; incorporated municipalities may exercise their own zoning authority.
    • Government Code Section 65850 also lists authority to regulate signs and billboards, building and structure location, height, bulk, number of stories, and size, lot and open-space size and use, lot coverage, intensity of land use, offstreet parking and loading, and building setback lines.
    • The cited section states it was amended by Stats. 2017, Ch. 376, Sec. 1, effective January 1, 2018.
    “The legislative body of any county or city may, pursuant to this chapter, adopt ordinances that do any of the following:”
  • county building authorityGeneral

    California counties administering and enforcing state building standards through county building departments, including residential construction in unincorporated areas.

    • Each county must maintain building standards and state building regulations in the office of the building official responsible for administration and enforcement of state building standards.
    • The statewide Title 24 standards apply subject to statutory exceptions and any authorized local amendments or local requirements.
    • The cited HCD bulletin concerns the 2019 California Building Standards Code and its July 1, 2021 supplement; later code editions may supersede those particular edition dates.
    “These codes shall be maintained in the office of the building official responsible for the administration and enforcement of state building standards”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Lot coverage — Maximum lot or site coverage in unincorporated Inyo County.
  • Agricultural exemption — Agricultural-building or agricultural-use exemption from county building, zoning, or development requirements in unincorporated Inyo County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Inyo County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from California’s water agency.

Adjudicated — rights fixed

Water rights here have been fixed by a court. New supply effectively means acquiring an existing right.

Household wellPermit required — restricted

California requires no STATE permit for a domestic well — wells are permitted by the county — but under SGMA a Groundwater Sustainability Agency can meter or restrict new wells in medium/high-priority and critically overdrafted basins, and Executive Order N-7-22 requires counties in those basins to get GSA verification that a new well is consistent with the Groundwater Sustainability Plan before permitting.

Limit: 2 acre-feet/year de minimis under SGMA (Water Code §10721(e)) — largely exempt from GSA metering/fees

California DWR / State Water Board — SGMA de minimis & EO N-7-22 Action 9 FAQ ↗
  • Owens Valley (Inyo) — Adjudicated Area / LADWP Long-Term Water Agreementpartial of county

    On DWR's adjudicated-areas layer; groundwater pumping governed by the 1991 court-validated Inyo County–Los Angeles Long-Term Water Agreement with LADWP as operator; local development effectively cannot access basin supply.

    California DWR — Adjudicated Areas ↗
  • Indian Wells Valley Basin — Critically Overdrafted (Under Adjudication)localized of county

    Ridgecrest / China Lake desert basin ~4x overdraft, also in active court adjudication; import-fee framework; effectively closed to new large appropriation.

    California DWR Bulletin 118 — Critically Overdrafted Basins ↗

Hybrid state (appropriation + riparian). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the California state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Inyo County, California

Is Inyo County a good place to live off-grid or homestead?

Inyo County scores 23/100 on the Bolthole Index, a weak county profile. Its strengths: sparse surroundings — about 3,133 people within 15 miles and manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 6″ of rain a year, in severe drought 44.8% of years and elevated mid-century heat, water, rain, or wildfire exposure.

Do you need a building permit in Inyo County, California?

Inyo County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Inyo County Environmental Health Department (ICEHD). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Inyo County?

Living in an RV on your own land in Inyo County is prohibited: Use of an RV as a short-term rental dwelling in Inyo County; the county code defines short-term rental activity as residential-property rental for 30 days or less. The prohibition is part of the county short-term-rental regulations. The dwelling unit must otherwise comply with applicable building-and-safety and environmental-health requirements. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Inyo County, California?

Land in Inyo County runs about $961 per acre, based on the latest county data.

What is the water situation in Inyo County?

Inyo County gets about 6" of rain a year, with severe drought in roughly 44.8% of years. On water rights, Inyo County lies in the Owens Valley (Inyo) — Adjudicated Area / LADWP Long-Term Water Agreement — On DWR's adjudicated-areas layer; groundwater pumping governed by the 1991 court-validated Inyo County–Los Angeles Long-Term Water Agreement with LADWP as operator; local development effectively cannot access basin supply..

How remote is Inyo County?

A typical private-land location has about 3,133 people within 15 miles and 1,173,432 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

How Inyo compares in California

Compare side-by-side →See all 58 California counties ranked →