Del Norte County, CA Building Permits & Zoning

Unincorporated Del Norte County, California requires building permits for construction regulated by the California Building Standards Code, with plans checked before work is authorized¹². The county also enforces zoning and subdivision rules, while Environmental Health handles onsite septic systems³⁴. Start with Planning and Building Inspection before committing to a rural parcel, because coastal and non-coastal land follow different zoning titles⁵.

At a glance

Building permit: Required for construction regulated by California building standards¹²
Zoning: Yes; non-coastal and coastal parcels follow different county zoning titles³⁵
Septic: County Environmental Health handles onsite wastewater systems⁴⁶
RV living: Not a permanent dwelling by default; local authorization is needed outside qualifying parks⁷
Tiny home: Must qualify under an approved building, manufactured-home, factory-built or recreational-unit classification⁸
Owner-builder: A conditional contractor-license exemption is available, but permits and inspections still apply⁹¹⁰
Private well: A local permit is required before construction, modification or destruction¹¹

Who to call

Building permits

Del Norte County Building Inspection Division

Building-permit review, plan checking and building-code assistance

(707) 464-7253

[email protected]

981 H Street, Suite 110, Crescent City, CA 95531

Zoning

Del Norte County Planning Division

Zoning, subdivision and development-permit applications

(707) 464-7254

[email protected]

981 H Street, Suite 110, Crescent City, CA 95531

Septic permits

Del Norte County Environmental Health Division

Onsite wastewater treatment systems and parcel soil-analysis intake

(707) 465-0426

[email protected]

981 H Street, Suite 110, Crescent City, CA 95531

Floodplain permits

Del Norte County Engineering and Surveying Division

Development review involving drainage, grading, improvements, flood-control structures and county infrastructure

(707) 464-7229

[email protected]

981 H Street, Suite 110, Crescent City, CA 95531

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

Do you need a building permit in Del Norte County, California?

Yes. Del Norte County Building Inspection processes permits for regulated construction and checks plans before authorizing work¹¹². California requires a separate permit for each regulated building or structure before construction, alteration, repair, movement, improvement, removal, conversion or demolition begins¹³. For applications submitted in 2026, the statewide baseline is the 2025 California Building Standards Code, which applies to buildings and structures with a permit application date on or after January 1, 2026². Del Norte County may apply authorized local modifications, so use the current county forms and ask Building Inspection which code provisions govern your project¹². Acting as an owner-builder does not remove permit or inspection requirements; the exemption concerns contractor licensing, and an owner-builder project must still pass code and building inspections⁹¹⁰.

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

The Del Norte County Building Inspection Division reviews building permits and plans; reach the office at (707) 464-7253 or [email protected], or visit 981 H Street, Suite 110, Crescent City, CA 95531¹⁴. For land-use questions, the Del Norte County Planning Division processes development-permit applications and administers zoning and subdivision regulations; its phone is (707) 464-7254 and its email is [email protected]¹⁵. County Community Development permit fees are published in an entire-county schedule, and the amount varies by division and permit or service type¹⁶. Engineering and Surveying reviews drainage, grading and improvement plans for new development and can be reached at (707) 464-7229 or [email protected]¹⁷. Calling Planning before Building Inspection is especially useful when parcel zoning, coastal status, access or subdivision history could shape the buildable envelope⁵¹⁸.

Does Del Norte County have zoning?

Yes. Del Norte County uses Title 20 for non-coastal zoning and Title 21 for coastal zoning, and the county provides a geographic information system with a zoning layer⁵¹⁹. The Planning Division administers zoning and subdivision rules under the General Plan, Local Coastal Program and applicable state laws¹⁵. Parcel-specific setbacks, allowed uses, minimum lot area and other development standards therefore depend on the zoning district and whether the parcel lies in the Coastal Zone⁵. The available county rule for new attached and detached accessory dwelling units illustrates that variation: the front setback follows the applicable zone district, while the county summary identifies side and rear setback standards and flags possible corner-lot exceptions²⁰. The minimum residential lot size for each district could not be confirmed from the available county material, so ask Planning for a parcel-specific zoning determination before designing or buying.

How do septic permits work in Del Norte County?

Del Norte County Environmental Health is the local office for onsite wastewater treatment systems, and California requires a permit for every new or replacement septic system through the applicable local jurisdiction or water board⁴⁶. Before any onsite-system soil analysis, Environmental Health instructs applicants to submit its Parcel Soil Analysis Form; reach the division at (707) 465-0426 or [email protected]²¹. Soil feasibility is a serious purchase-stage issue in Del Norte County: only about 0.1% of mapped soils rate as free of severe limits for a conventional septic drain field²². That soil statistic does not make septic impossible, but it supports budgeting for site evaluation and possibly a nonconventional design²². County-specific inspection timing could not be confirmed, so ask Environmental Health what testing, design review, construction inspections and final clearance your parcel will require.

Can you live in an RV or tiny home on land in Del Norte County?

A recreational vehicle is not treated as a permanent dwelling by default in Del Norte County; unless a local ordinance allows otherwise, California generally limits RV occupancy to mobilehome parks or special occupancy parks⁷. The county's private-land rules for temporary camping, including duration and exceptions, could not be confirmed, so ask the Planning Division before relying on an RV while building. A tiny home may be occupied only when it complies with and is approved under a recognized classification, such as a code-built home, manufactured home, factory-built home, recreational vehicle, park trailer or camping cabin, and its location must be approved for that classification⁸. A qualifying manufactured home may be occupied inside or outside a mobilehome park, but local zoning, installation, building, septic and development approvals can still apply²³. In short, the label “tiny home” does not bypass Del Norte County zoning or California construction standards³⁸.

Building a home in Del Norte County: the steps, in order

Ask the Planning Division to confirm the parcel's zoning district, Coastal Zone status, allowed residential use and applicable development standards¹⁵⁵.
Document legal access from the nearest public road using records filed or recorded with the Del Norte County Clerk-Recorder; an assessor's parcel map alone does not establish legal access²⁴.
Determine the water source: Del Norte County does not provide public water, while Crescent City and several community services districts serve parts of the county²⁵.
For an onsite system, submit the Parcel Soil Analysis Form to Environmental Health before the soil analysis and complete the required septic permitting path²¹⁶.
Submit plans and the building-permit application to Building Inspection before construction begins¹⁴¹³.
Coordinate drainage, grading and improvement-plan review with Engineering and Surveying when the project requires it¹⁷.
Schedule required inspections, including those that apply to an owner-builder project¹⁰.

What should you check before buying land in Del Norte County?

Start with buildability rather than acreage. Only about 6.6% of Del Norte County land is at a slope of 15% or less, and about 94.1% is wooded, so clearing, grading and access can dominate site costs²⁶²⁷. Septic deserves equal attention because only about 0.1% of mapped soils rate as free of severe limitations for a conventional drain field²². Confirm legal access from the nearest public road before closing, since a development application must document that access and an assessor's parcel map is not enough²⁴. Check water service by location because the county itself supplies no public water, and obtain a local permit before constructing, modifying or destroying a private well²⁵¹¹. Del Norte County averages about 76.4 inches of precipitation annually, and floodplain-development requirements remain unconfirmed, so ask Engineering and Surveying about drainage and mapped flood hazards for the specific site²⁸¹⁷.

Watch-outs

Del Norte County's coastal and non-coastal areas use different zoning titles, so confirm Coastal Zone status before relying on a use table or setback⁵.
An assessor's parcel map does not prove legal access; a development application must document access from the nearest public road with filed or recorded records²⁴.
Private-land RV camping duration and exceptions could not be confirmed; ask the Planning Division before treating an RV as temporary housing during construction¹⁵.
The county's building page still describes the 2019 code edition, while the 2025 California Building Standards Code applies to permit applications on or after January 1, 2026; confirm the current submittal requirements with Building Inspection¹²².

Sources

Written September 27, 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.

How Del Norte County scores

Seclusion75100% ev.

Self-Sufficiency43100% ev.

Admin Boringness3690% ev.

Durability32100% ev.

Property Autonomy56100% ev.

Carry Cost58100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$372kTypical home

0.6%Property tax

$10,206Land / acre

76.4"Annual rain

18.4% of yrsSevere drought

0 / yr (+0)Mid-century 100°F days

39.2 daysMid-century dry spell

4.54" (+6.1%)Mid-century 1-day rain

1.16×Wildfire change factor

100%Forward climate coverage

$1,639Home insurance / yr

8.3% / yrInsurance growth

0.94%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

22,047People within 30 min

257,425People within 2 hr

27,319Radius comparison (15 mi)

26.4People / sq mi

70.6%Federal land

6.6%Land at 15% slope or less

0.1%Septic soil without severe limits

724 acWorkable land screen

94.1%Wooded land

121.2 tonsBiomass / forest ac

52.5°FAvg temp

Answers from the rulebook for Del Norte County

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

Del Norte County rules

Building code adoptedAdopted (with conditions)
Construction activities in Del Norte County reviewed and processed by the County Building Inspection Division.
- The Building Inspection Division processes permits for construction activities regulated by the 2019 California Building Code and Title 24 of the California Code of Regulations.
- The codes are adopted by the State of California and modified by Del Norte County.
- Other applicable codes include the Health and Safety Code, Business and Professions Code, California Administrative Code, and other codes relevant to public health and safety regarding structures.
- Plan checking for compliance occurs before authorization to begin work.
California Building Code edition identified by County: 2019 · applicable state code: Title 24 of the California Code of Regulations
“construction activities regulated by the 2019 California Building Code [...] as adopted by the State of California and as modified by Del Norte County.”
Building Inspection ↗Re-checked Sep 24, 2026
County-wide zoningPresent (with conditions)
Del Norte County zoning under Title 20 for non-coastal areas and Title 21 for coastal areas.
- The Planning Division administers and enforces zoning and subdivision regulations in accordance with the County General Plan, Local Coastal Program, and applicable state laws.
- Coastal development is subject to the Local Coastal Program and Title 21 Coastal Zoning.
non-coastal zoning code: Title 20 · coastal zoning code: Title 21
“DEL NORTE COUNTY ZONING ORDINANCE * Del Norte County Code 1. Title 20 – Non-Coastal Zoning 2. Title 21 – Coastal Zoning”
Zoning, General Plan, and Development Standards ↗Re-checked Sep 24, 2026
Zoning districtsPublished (with conditions)
County zoning districts and standards in areas governed by Del Norte County zoning regulations.
- Title 20 governs non-coastal zoning.
- Title 21 governs coastal zoning.
- The County provides a Geographic Information System with a zoning layer.
- The cited county source does not establish zoning administration within incorporated municipalities.
“DEL NORTE COUNTY ZONING ORDINANCE Del Norte County Code 1. Title 20 – Non-Coastal Zoning 2. Title 21 – Coastal Zoning County Geographic Information System with Zoning Layer”
Zoning, General Plan, and Development Standards ↗Re-checked Sep 24, 2026
SetbacksDistrict specific (with conditions)
New-construction attached and detached accessory dwelling units; front setbacks follow the applicable zone district, while the County summary states four-foot side and rear setbacks.
- Front setback is the zone-district standard.
- Exceptions may apply on corner lots.
- Conversion ADUs and JADUs with new construction must meet applicable ADU height and setback standards.
- Coastal Zone parcels require Planning Division assistance.
side setback: >= 4 feet (Exceptions may apply on corner lots.) · rear setback: >= 4 feet (Exceptions may apply on corner lots.) · front setback: applicable zone district standard
“Minimum front setbacks: standard for the zone district [...] Minimum side setbacks: 4 feet [...] Minimum rear setbacks: 4 feet”
Types of ADUs ↗Re-checked Sep 24, 2026
Lot coverageDistrict specific (with conditions)
Accessory dwelling units subject to the applicable zoning district's lot-coverage requirements.
- An exception applies when allowable site coverage would preclude an ADU.
- The exception allows one attached or detached ADU up to 800 square feet regardless of bedroom count.
- Coastal Zone parcels require Planning Division assistance.
exception ADU maximum size: <= 800 square feet (Applies when allowable site coverage would preclude an ADU.)
“An ADU shall comply with the lot coverage requirements of the applicable zoning district”
Accessory Dwelling Units ↗Re-checked Sep 24, 2026
Building heightDistrict specific (with conditions)
Accessory dwelling units in Del Norte County; attached ADUs follow the underlying zone district, and detached ADUs have the County-stated height standards.
- Detached ADUs are generally limited to 16 feet but may be higher under certain conditions.
- A detached ADU on a parcel with a multistory, multi-unit dwelling structure is limited to 18 feet.
- An ADU above a detached garage is limited to 25 feet.
- An attached ADU is limited to the height allowed in the underlying zone district.
- Coastal Zone parcels require Planning Division assistance.
detached ADU height: <= 16 feet (May be higher under certain conditions.) · detached ADU with multistory, multi-unit dwelling: <= 18 feet · ADU above detached garage: <= 25 feet · attached ADU height: underlying zone district allowance
“16 ft. but may be higher under certain conditions.”
Types of ADUs ↗Re-checked Sep 24, 2026
Mandatory utility hookupWater (with conditions)
Public water availability and connection coordination for projects in Del Norte County.
- Del Norte County does not provide public water.
- The City of Crescent City and several Community Services Districts provide public water in the county.
- The service provider depends on the specific project location.
- Additional permitting, plan-check, inspection, bonding, and water-line/service construction costs may apply.
“The County of Del Norte does not provide public water. The City of Crescent City, 707-464-9506, and several Community Services Districts (CSD) provide public water in Del Norte County. The Engineering and Surveying Division, 707-464-7229, is usually able to determine a water service provider given a specific project location.”
Frequently Asked Questions ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Sewer (with conditions) — Sanitary sewer collection in the unincorporated Crescent City area served by Del Norte County Service Area No. 1.
  “The Del Norte County Service Area No. 1 (CSA-1) provides sanitary sewer collection service to the unincorporated Crescent City area.”
  County Service Area No. 1 (CSA-1) ↗Re-checked Sep 24, 2026
Subdividing landRegulated (with conditions)
Subdivision and related development-permit applications administered by Del Norte County in unincorporated areas.
- The County Planning Division administers and enforces subdivision regulations under the County General Plan, Local Coastal Program, and applicable state laws.
- A development permit application, including a subdivision application, must document legal access from the nearest public road.
- The cited legal-access handout is printed May 15, 2024; that print date is not treated as an effective date.
“The Planning Division of the Community Development Department administers and enforces zoning and subdivision regulations”
Planning Division ↗Re-checked Sep 24, 2026
Driveway accessRequired
Development permit applications, including building, grading, subdivision, and use permit applications, for parcels where development is proposed.
- The application must document legal access from the nearest public road to the parcel.
- Documentation must come from records filed or recorded in the Del Norte County Clerk-Recorder’s Office and must establish access under Title 12 of the Del Norte County Code.
- If access documentation is not mapped on a record of survey, parcel map, or final map, the Engineering and Surveying Division requires it to be drawn to scale, labeled, and dimensioned.
- Applicants must provide documentation of easements on or around the property on the scaled plot plan or tentative map.
- An Assessor’s Parcel Map does not document legal access.
“A development permit application (e.g., building permit, grading permit, subdivision, use permit) must include documentation that legal access exists from the nearest public road to the parcel(s) where development is proposed.”
Legal Access Handout ↗Re-checked Sep 24, 2026
Permit feesPublished (with conditions)
County Community Development Department permits and related services.
- The County publishes an entire-county fee schedule under Ordinance 2024-001.
- Fees may differ by Community Development division and permit or service type.
“County Fee Schedule for Entire County – Ordinance 2024-001”
County Fee Schedules ↗Re-checked Sep 24, 2026

California rules that apply here

Building permitRequired
Construction projects within the California Department of Health Care Access and Information Office of Statewide Hospital Planning and Development jurisdiction, including health-facility projects requiring HCAI review.
- Written plan approval must be issued before the building-permit application proceeds.
- The application must provide contractor information, Inspector of Record information, and a Testing Inspection and Observation program.
- The TIO program must be field-approved before approval and subsequent issuance of the building permit.
- This claim does not establish the permit rule for projects outside HCAI jurisdiction.
“Once a project receives written plan approval, a Building Permit application is submitted through the e-Services Portal.”
Building Permits & Construction Observation ↗Re-checked Sep 26, 2026
Owner-builder exemptionAvailable (with conditions)
Exemption from California contractor-licensing chapter for an owner-builder who builds or improves a structure on the owner’s property; this does not itself establish exemption from local building permits, inspections, or other code requirements.
- For work personally performed by the owner or performed by the owner’s employees, none of the improvements may be intended or offered for sale, and employee compensation must be wages as their sole compensation.
- For work directly contracted to licensed trade contractors, the owner must directly contract with licensees duly licensed for the respective trades.
- For single-family residential structures under the licensed-contractor arrangement, no more than four structures may be intended or offered for sale in a calendar year; this limitation does not apply if the owner contracts with a general contractor for construction.
- For a homeowner improving a principal residence or its appurtenances, the work must be performed before sale, the homeowner must have actually resided in the residence for the 12 months before completion, and the homeowner must not have used this exemption on more than two structures more than once during any three-year period.
- A nonprofit corporation may qualify when assisting an owner-builder participating in a mutual self-help housing program.
- Sale or offering for sale within one year after completion creates a rebuttable presumption that the structure was undertaken for sale; sale or offering for sale of five or more structures within one year creates a conclusive presumption.
- This is a contractor-licensing exemption and should not be treated as a building-permit exemption.
single-family structures intended or offered for sale: <= 4 structures per calendar year (Does not apply if the owner contracts with a general contractor for construction.) · prior residence occupancy: >= 12 months before completion (Applies to the principal-residence homeowner exemption.) · owner-builder exemption use: <= 2 structures during any three-year period (The statute states the homeowner has not availed himself or herself of the exemption on more than two structures more than once during any three-year period.) · sale presumption period: 1 year after completion (Sale or offering for sale creates a rebuttable presumption; five or more structures creates a conclusive presumption.) · conclusive-presumption threshold: >= 5 structures within one year after completion (Structures sold or offered for sale by the owner-builder.)
“This chapter does not apply to any of the following: (1) An owner who builds or improves a structure on his or her property”
California Business and Professions Code Section 7044 ↗Re-checked Sep 26, 2026
2 more reviewed findings on this topic
- Conditional — Owners who build or improve structures on their own property, and homeowners improving their principal residence or appurtenances, subject to Business and Professions Code section 7044.
  “(a) This chapter does not apply to any of the following: (1) An owner who builds or improves a structure on his or her property”
  California Business and Professions Code Section 7044 ↗Re-checked Sep 26, 2026
- Available (with conditions) — California contractor-licensing requirements for an owner who builds or improves a structure on the owner’s property; this is not stated as an exemption from building permits, inspections, or other code requirements.
  “This chapter does not apply to any of the following: (1) An owner who builds or improves a structure on his or her property”
  California Business and Professions Code section 7044 ↗Re-checked Sep 26, 2026
InspectionsRequired
Construction projects within HCAI jurisdiction involving California health facilities.
- HCAI field personnel make periodic site visits.
- The Inspector of Record is responsible for continuous inspection of the work.
- The inspections address seismic, fire, life-safety, and other building-code requirements.
“The approved IOR with the required personal knowledge performs only those duties associated with the required continuous inspections”
HCAI Standard Project Process ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Required — California owner-builder projects addressed by the Contractors State License Board guidance.
  “Your project must pass codes and building inspections.”
  Owner-Builder Responsibilities ↗Re-checked Sep 26, 2026
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.”
HCAI Standard Project Process ↗Re-checked Sep 26, 2026
Minimum dwelling sizeSpecified
Efficiency units permitted by a California city, county, or city and county.
- The local jurisdiction must adopt an ordinance permitting the efficiency unit.
- Occupancy is limited to no more than two persons.
- The unit may have partial kitchen or bathroom facilities as specified by the local ordinance.
- All other applicable minimum standards under Health and Safety Code Part 1.5 continue to apply.
minimum floor area: >= 150 square feet · maximum occupancy: <= 2 persons
“Notwithstanding Sections 17922, 17958, and 17958.5, a city, county, or city and county may, by ordinance, permit efficiency units for occupancy by no more than two persons which have a minimum floor area of 150 square feet and which may also have partial kitchen or bathroom facilities, as specified by the ordinance.”
California Health and Safety Code Section 17958.1 ↗Re-checked Sep 9, 2026
Living in an RVTemporary only (with conditions)
Occupancy of recreational vehicles as residential dwellings in Del Norte County, subject to any applicable local ordinance.
- RVs are not intended for occupancy as a permanent dwelling.
- 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 or Special Occupancy Parks Act.
- The RV must satisfy the stated size, chassis, and applicable construction-standard requirements.
internal living room area: < 320 square feet (excluding built-in equipment and bath or toilet rooms) · gross area: <= 400 square feet (measured at maximum horizontal projections)
“Unless otherwise allowed by a local ordinance, RVs generally may be occupied only in mobilehome parks or special occupancy parks”
Information Bulletin 2016-01: Tiny Homes ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Temporary only (with conditions) — Occupancy of recreational vehicles as residential units in California.
  “RVs are not intended for occupancy as a permanent dwelling. [...] Unless otherwise allowed by a local ordinance, RVs generally may be occupied only in mobilehome parks or special occupancy parks”
  Information Bulletin 2016-01: Tiny Homes ↗Re-checked Sep 9, 2026
Camping on your landLimited
Camping in units operated by the California Department of Parks and Recreation statewide.
- Camping is confined to areas designated for that purpose.
- Occupancy by the same persons, equipment, or vehicles is generally limited to 30 days in any calendar year in that unit.
- The Department may establish shorter or longer occupancy limits.
- When a shorter seasonal limit applies, the camper must vacate the campsite and may not reregister in the unit until 48 hours have expired, measured from 12:00 noon on the checkout day to 12:00 noon on the second day following.
- A district superintendent may permit one-night camping in a day-use area or portion of one, subject to Department-established fees and vehicle limitations; occupants must vacate by 9:00 a.m. the following morning.
- California State Parks' current reservation policy states that each campground has a consecutive-night limit, requires a 48-hour absence after that limit, and generally has a 30-night annual maximum, subject to individual park policies.
general annual occupancy limit: 30 days per calendar year per unit (The Department may establish shorter or longer limits of occupancy.) · return interval after shorter seasonal limit: 48 hours (Measured from 12:00 noon of the checkout day to 12:00 noon of the second day following.) · one-night camping in day-use area: 1 night (Only if permitted by the district superintendent; occupants must vacate by 9:00 a.m. the following morning.)
“Occupancy by the same persons, equipment, or vehicles of any camping facility is limited to a total of 30 days in any calendar year in that unit.”
California Off-Highway Motor Vehicle Laws 2014 ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Allowed (with conditions) — Temporary camping in California special occupancy parks, including parks containing recreational vehicles, tents, or camping cabins.
  ““Special occupancy park” means a recreational vehicle park, temporary recreational vehicle park, incidental camping area, or tent camp.”
  What is a Mobilehome Park or Special Occupancy Park? ↗Re-checked Sep 26, 2026
Tiny homesAllowed (with conditions)
Occupancy of a structure marketed or described as a tiny home in California.
- The tiny home must comply with applicable standards and be approved as a HUD-Code manufactured home, California Residential or Building Code home, factory-built housing, recreational vehicle, park trailer, or camping cabin.
- The location must be approved for the applicable classification.
- A tiny home that does not fit one of those classifications and does not comply with the California Building Standards Code is a noncomplying structure whose occupancy is illegal.
- Approving and enforcing agencies vary depending on whether the unit is inside or outside a mobilehome or special occupancy park.
park trailer or RV gross area limit: <= 400 square feet (Applicable classification-specific exclusions and standards apply.)
“In order to be occupied, a tiny home must comply with the standards of, and be approved as one of the following types of structures: a HUD-Code manufactured home (MH), California Residential Code or California Building Code home, factory-built housing (FBH), recreational vehicle (RV), park trailer (PT) or camping cabin (CC).”
Information Bulletin 2016-01: Tiny Homes ↗Re-checked Sep 9, 2026
Manufactured homesAllowed (with conditions)
Occupancy of manufactured homes inside or outside mobilehome parks in California.
- The manufactured home must satisfy applicable federal standards and California Manufactured Housing Act and Title 25 requirements.
- Installation and approval for occupancy are governed by the Mobilehome Parks Act.
- HCD or a local enforcement agency with assumed Mobilehome Parks Act authority is responsible for ensuring compliance with statutory construction and maintenance requirements.
- Local agency approvals may be necessary for the project.
minimum width for a new manufactured home: >= 8 body feet (The statutory definition also includes units at least 40 body feet in length.) · minimum erected floor area for a new manufactured home: >= 320 square feet
“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.”
Information Bulletin 2016-01: Tiny Homes ↗Re-checked Sep 9, 2026
Accessory dwellingsAllowed (with conditions)
ADUs and junior ADUs subject to California State ADU Law.
- Approval is ministerial and without discretionary review or a hearing.
- Development standards must be objective and knowable in advance.
- The local permitting agency must determine application completeness and provide written notice within 15 business days.
- If an application is incomplete, the agency must identify missing items and explain how to complete it.
- Local site, building, health, safety, fire, utility, and other applicable requirements continue to apply.
written completeness determination: <= 15 business days (Measured from the permitting agency's receipt of the application.) · final written determination after appeal: <= 60 business days (Applies after receipt of the written appeal.)
“A permit application for an accessory dwelling unit shall be considered and approved ministerially without discretionary review or a hearing [...] A permitting agency shall determine whether an application to create or serve an accessory dwelling unit is complete and provide written notice of this determination to the applicant not later than 15 business days after the permitting agency received the application.”
Accessory Dwelling Unit Handbook March 2026 ↗Re-checked Sep 9, 2026
Who permits septicMixed (with conditions)
California onsite wastewater treatment systems, including septic systems primarily treating domestic wastewater through subsurface disposal.
- The State Water Resources Control Board establishes the statewide OWTS Policy.
- Local agencies, such as county environmental health departments, issue OWTS permits under the statewide policy.
- Local Agency Management Programs may establish locally tailored siting and design standards.
OWTS Policy effective date: 2013-05-13 (Except for Tier 3, local agencies could continue existing permitting programs for 60 months after the effective date.) · Tier 1 maximum flow: <= 3500 gallons per day (Applies to qualifying new or replacement OWTS where no approved LAMP applies.) · Tier 2 maximum flow: <= 10000 gallons per day (Applies under an approved LAMP.)
“The State Water Resources Control Board [...] adopted the OWTS Policy in June 2012. The OWTS Policy authorizes local agencies [...] to issue OWTS permits.”
Onsite Waste Water Treatment Systems ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Mixed (with conditions) — Statewide regulation and management of onsite wastewater treatment systems, commonly known as septic systems.
  “Implementation of the OWTS Policy will be overseen by the State Water Board and the regional water quality control boards”
  Water Quality Control Policy for Siting, Design, Operation and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy) ↗Re-checked Sep 9, 2026
Septic permitLimited
New, replacement, and corrective-action OWTS in California; existing properly functioning systems may fall under Tier 0 rather than new/replacement permitting requirements.
- Tier 1 applies to qualifying new or replacement OWTS when no Regional Water Board-approved LAMP exists, with a maximum flow of 3,500 gallons per day.
- Tier 2 applies to qualifying new or replacement OWTS under an approved LAMP, with a maximum flow of 10,000 gallons per day.
- Tier 3 applies near impaired surface waters subject to a TMDL, a special LAMP provision, or within 600 feet of a water body listed on OWTS Policy Attachment 2; supplemental treatment may apply.
- Tier 4 applies to systems that are not properly functioning and require corrective action.
- Local agencies issue the permits and local LAMP requirements may differ from Tier 1.
Tier 1 maximum flow: <= 3500 gallons per day (Qualifying new or replacement OWTS without an approved LAMP.) · Tier 2 maximum flow: <= 10000 gallons per day (Qualifying new or replacement OWTS under an approved LAMP.) · Tier 3 water-body setback: <= 600 feet (Applies to a water body listed on OWTS Policy Attachment 2.)
“Tier 1 applies when a Local Agency Management Program (LAMP) has not been approved by the Regional Water Board. Maximum flow rate is 3,500 gpd.”
Onsite Waste Water Treatment Systems ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Required — New and replacement onsite wastewater treatment systems (OWTS), commonly known as septic systems, statewide in California.
  “Every new or replacement septic system requires a permit, either through your local jurisdiction (City or County) OR from the Central Coast Water Board.”
  2023 OWTS Policy ↗Re-checked Sep 26, 2026
Septic inspectionLimited
OWTS in a Tier 3 Advanced Protection Management Program with supplemental treatment components, including systems in specified impaired-water-body areas statewide.
- The requirement applies to OWTS in an Advanced Protection Management Program with supplemental treatment components.
- Ongoing monitoring must follow the OWTS operation and maintenance manual or occur more frequently if required by the local agency or Regional Water Board.
- Where telemetry is not possible, the owner or owner's agent must inspect at least monthly while the system is in use and notify the service provider at least quarterly of observed operating parameters.
- For systems designed to meet disinfection requirements, a service provider must inspect proper operation quarterly while the system is in use unless continuous telemetric monitoring is capable of assessing operation.
- Quarterly effluent sampling and certified-laboratory requirements apply to systems subject to the disinfection provisions.
inspection frequency where telemetry is not possible: per monthly (While the system is in use.) · inspection frequency for disinfection systems: per quarterly (While the system is in use, unless continuous telemetric monitoring is capable of assessing operation.)
“Where telemetry is not possible, the owner or owner’s agent shall inspect the system at least monthly while the system is in use as directed and instructed by a service provider and notify the service provider not less than quarterly of the observed operating parameters of the OWTS. [...] OWTS in an Advanced Protection Management Program designed to meet the disinfection requirements in Section 10.10 shall be inspected for proper operation quarterly while the system is in use by a service provider unless a telemetric monitoring system is capable of continuously assessing the operation of the disinfection system.”
2023 OWTS Policy ↗Re-checked Sep 26, 2026
Well permitRequired
Construction, modification, or destruction of water wells in California.
- The permit is obtained from the applicable local environmental health agency or local water district before construction, modification, or destruction.
- Local enforcing agencies may adopt ordinances that meet or exceed DWR Well Standards.
- If no local well ordinance is adopted, the local enforcing agency must enforce the Statewide Model Well Ordinance.
- Water wells supplying public water systems have additional State Water Resources Control Board Division of Drinking Water certification requirements.
- Water-well construction must be performed by a licensed C-57 Well Drilling Contractor.
“Well owners need to obtain permits from local environmental health agencies or local water districts before construction, modification, or destruction takes place.”
Well Standards ↗Re-checked Sep 26, 2026
2 more reviewed findings on this topic
- Required — Construction, modification, or destruction of water wells in California, including Del Norte County.
  “These agencies issue permits for well construction, alteration, or destruction; enforce well ordinances in their jurisdiction and they also conduct inspections. [...] Well drillers must submit well completion reports to DWR within 60 days.”
  Wells ↗Re-checked Sep 24, 2026
- Limited — Construction, alteration, maintenance, or destruction of water wells, monitoring wells, cathodic protection wells, and geothermal heat exchange wells in California.
  “Permitting and enforcement are carried out by the LEAs, such as the County Department of Environmental Health.”
  Well Standards ↗Re-checked Sep 9, 2026
Permit processPublished (with conditions)
Construction, alteration, repair, movement, improvement, removal, conversion, or demolition of a building or structure in California.
- A separate permit for each building or structure must be obtained from the building official before the work.
- Code requirements vary by city and county; the applicable local building department must be consulted.
“no building or structure may be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted or demolished unless a separate permit [...] has first been obtained”
Do I need a building permit for my project? ↗Re-checked Sep 9, 2026
Campground & park staysAllowed (with conditions)
Qualifying manufactured homes installed in or outside mobilehome parks in Del Norte County.
- The manufactured home must meet the applicable federal and California Manufactured Housing Act standards.
- Installation and approval for occupancy are governed by the Mobilehome Parks Act.
- HCD or a local enforcement agency with assumed enforcement authority must ensure compliance with statutory construction and maintenance requirements.
- Local zoning, installation, building, septic, and other development requirements may still apply.
minimum width when erected or in travel mode: >= 8 body feet (or at least 40 body feet in length) · minimum length when erected or in travel mode: >= 40 body feet (alternative to the 8-foot width criterion) · minimum area when erected on-site: >= 320 square feet
“MHs may be occupied outside or inside of mobilehome parks and installation and approval for occupancy is governed by the Mobilehome Parks Act (MPA),”
Information Bulletin 2016-01: Tiny Homes ↗Re-checked Sep 24, 2026
3 more reviewed findings on this topic
- Limited — RV and trailer camping at Silver Strand State Beach Campground in the San Diego Coast District.
  “Camping Stay Limits: Applies to persons, equipment, or vehicles and any combination thereof [...] Maximum stay of 30 days per calendar year [...] Maximum 7 consecutive days during peak season (May 15 – September 15) [...] Maximum 14 consecutive days during non-peak season”
  Silver Strand State Beach Campground Rules and Regulations ↗Re-checked Sep 9, 2026
- 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”
  What is a Mobilehome Park or Special Occupancy Park? ↗Re-checked Sep 26, 2026
- Limited — Occupancy and use of manufactured homes and mobilehomes in California mobilehome parks and other locations subject to HCD jurisdiction.
  “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.”
  Manufactured & Mobilehomes ↗Re-checked Sep 26, 2026
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:”
California Government Code Section 65850 ↗Re-checked Sep 21, 2026
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”
Information Bulletin 2021-02: 2019 California Building Standards Code Supplement ↗Re-checked Sep 26, 2026

Still unanswered

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

Minimum lot size — Minimum lot size for residential development in Del Norte County.
Off-grid sanitation — Off-grid sanitation systems, including sanitation systems not connected to public sewer, in Del Norte County.
Agricultural exemption — Agricultural exemption from county building, zoning, subdivision, or related development requirements in Del Norte County.
Building in a floodplain — Development in floodplain areas of Del Norte 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.

Living off-grid in Del Norte County, California

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

Del Norte County scores 53/100 on the Bolthole Index, a solid county profile. Its strengths: sparse surroundings — about 22,047 people within a 30-minute drive. Watch-outs: elevated current hazard exposure and more administrative friction around building and land use.

Do you need a building permit in Del Norte County, California?

Del Norte County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Del Norte County Environmental Health Division. 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 Del Norte County?

Living in an RV on your own land in Del Norte County is allowed on a temporary basis only: Statewide rule. Occupancy of recreational vehicles as residential dwellings in Del Norte County, subject to any applicable local ordinance. RVs are not intended for occupancy as a permanent dwelling. 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 or Special Occupancy Parks Act. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Del Norte County, California?

Land in Del Norte County runs about $10,206 per acre, based on the latest county data.

What is the water situation in Del Norte County?

Del Norte County gets about 76.4" of rain a year, with severe drought in roughly 18.4% of years.

How remote is Del Norte County?

A representative private-land location has about 22,047 people within a 30-minute drive and 257,425 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits, zoning and land rules in Del Norte County, California

At a glance

Who to call

Do you need a building permit in Del Norte County, California?

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

Does Del Norte County have zoning?

How do septic permits work in Del Norte County?

Can you live in an RV or tiny home on land in Del Norte County?

Building a home in Del Norte County: the steps, in order

What should you check before buying land in Del Norte County?

Watch-outs

Sources

Del Norte County in California

How Del Norte County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Del Norte County

Del Norte County rules

California rules that apply here

Still unanswered

Living off-grid in Del Norte County, California

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

Do you need a building permit in Del Norte County, California?

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

How much does land cost in Del Norte County, California?

What is the water situation in Del Norte County?

How remote is Del Norte County?

How Del Norte compares in California