Bolthole Index

Yolo County, California

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

35Index Score / 100
#41 of 58 in California

Unincorporated Yolo County, California requires a building permit from Yolo County Building Inspection Services before you build, move or alter a structure, and county zoning applies throughout the unincorporated area12. Environmental Health permits septic systems and wells, while incorporated cities handle their own zoning342. Soils rarely suit a standard septic field, so evaluate wastewater early5.

At a glance

Building permit
Required from Yolo County Building Inspection Services in unincorporated areas1
Zoning
Yes; county zoning (Title 8) covers all unincorporated land, and cities zone their own26
Septic
Yolo County Environmental Health; starts with a site evaluation by a qualified professional37
Wells
Environmental Health permit required for installation, modification or abandonment4
Farm buildings
Permit-exempt ag buildings allowed in A-N and A-X zones if all conditions are met8
Owner-builder
Conditional contractor-license exemption; required building permits still apply91
RV living
Not as a dwelling on residentially zoned land, except with Planning Director approval while a home is being built10
Residential lot size
Varies by zoning district; rural parcels without public water or wastewater need at least 2 acres for a new building permit11

Who to call

Building permits

Yolo County Building Inspection Services (Department of Community Services)

Building, grading, pool, flood hazard development and county fire permits in unincorporated Yolo County

530-666-8037

building.division@yolocounty.gov

292 West Beamer Street, Woodland, California 95695

Online permits →

Floodplain permits

Yolo County Building Inspection Services: Flood Protection

Floodplain development rules, flood zone determinations and elevation certificates

Planning & zoning

Yolo County Planning Division (Department of Community Services)

Zoning, land divisions and land-use permits in unincorporated Yolo County

(530) 666-8775

292 West Beamer Street, Woodland, CA 95695

Septic permits

Yolo County Environmental Health Division, Land Use Protection Unit

Septic (OWTS) permits, water well permits, small public water systems

(530) 666-8646

environmental.health@yolocounty.gov

292 W. Beamer Street, Woodland, CA 95695

Septic permits

Yolo County Environmental Health: Onsite Wastewater Treatment System (septic) Program

Septic design, installation and repair permits

Septic permits

Yolo County Environmental Health: septic site evaluations

Site evaluation process for new septic systems

Well permits

Yolo County Environmental Health: Water Well Program

Well construction, modification and abandonment permits; agricultural well moratorium updates

Roads & driveways

Yolo County Public Works Division: encroachment permits

Encroachment permits for driveways and other work in county road right-of-way

ppw@yolocounty.gov

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 Yolo 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 Yolo County, California?

Yes. In unincorporated Yolo County, an owner or agent must get a building permit before constructing, enlarging, altering, moving or demolishing a structure1. California's Title 24 building standards apply, while county zoning, setbacks and other local land-use requirements still govern the parcel12. The 2025 California Building Standards Code applies to permit applications dated on or after January 1, 202613.

A qualifying agricultural building in the A-N or A-X zone can avoid a building permit if it is not inhabited, used to process or pack products, or open to the public and meets all zoning, fire, sanitation and construction conditions8. Plumbing and electrical work still require separate permits8. California's owner-builder exemption concerns contractor licensing; it does not waive Yolo County's required building permit91.

Who is the Yolo County building department, and how do you reach them?

Yolo County Building Inspection Services, part of the Department of Community Services, is at 292 West Beamer Street in Woodland; call 530-666-8037 or email building.division@yolocounty.gov14. Submit building-permit applications through the Yolo Builds online portal14. The Planning Division, (530) 666-8775, and Environmental Health, (530) 666-8646, are in the same building, so one trip can cover zoning, septic and building questions1516.

County zoning covers only unincorporated Yolo County, so a parcel inside a city needs that city's zoning and building guidance17. Yolo County Environmental Health remains the county contact for septic systems3. Building-permit and plan-check fees depend on project valuation; the published schedule lists a $56 issuance fee and single-family/garage plan review at 65% of the building-permit fee, with other applicable charges separate18. Ask Building Inspection Services for the current fee total for your plans1418.

Does Yolo County have zoning?

Yes. Yolo County zoning covers the unincorporated area; incorporated cities administer their own rules17. Title 8 contains the county zoning regulations and subdivision rules, and the Planning Division's GIS map identifies a parcel's district61915.

RR-5 requires 5 acres and RR-2 requires 2 acres; a rural parcel without public water or wastewater also needs at least 2 acres for a new building permit11. In RR-5 and RR-2, the front setback is 20 feet from the property line or 50 feet from the roadway centerline, whichever is greater, with 25-foot rear and 10-foot side setbacks20. Other residential districts use different standards, so confirm the zoning before drawing a site plan2015. ADUs are permitted in unincorporated residential zones if they meet the county's standards21. RR-5 has no primary-dwelling size limit in its residential development table, but that does not establish a separate tiny-home occupancy approval22.

Can you use off-grid septic, and who issues septic permits in Yolo County?

Where community sewer connection is unavailable, Yolo County allows approved onsite septic treatment; alternative systems may require annual operating permits and service-provider reports23. Yolo County Environmental Health requires a septic installation permit for a new or replacement system, and work cannot start until the permit is issued24. A new-system permit will not be issued without a building permit, and the septic permit must be finalized before the building permit can be finalized24.

The process starts with a site evaluation and soils profile25. Hire a septic qualified professional, submit the request and fee, and schedule Environmental Health at least 48 hours ahead7. The evaluation uses at least two pits dug to at least eight feet, covering the primary and replacement areas7. Only 2.5% of Yolo County soils avoid severe limits for a conventional drain field, so an engineered alternative system may be necessary525. In developed areas, a parcel with sewage and a property line less than 200 feet from a sewer collector must be provided sewer service26.

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

An RV cannot be used as a temporary or permanent dwelling on residentially zoned property in unincorporated Yolo County unless the Planning Director approves it while a home is under construction10. Private-property camping is different: you may camp on your own land, with the owner, or with the owner's written consent carried by the camper and shown to a peace officer on demand, but county zoning and State Health Code requirements still apply27. Camping on county-owned or county-maintained public property is prohibited unless the Park and Recreation Director permits it within a park28.

We could not confirm a separate Yolo County occupancy category for a tiny home, so ask Planning which recognized housing type and zoning standards would apply15. In unincorporated Yolo County, manufactured homes may substitute for stick-built residences in agricultural zones and in other zones where allowed or permitted, subject to siting and development standards29. Installation requires a Community Services permit, current state housing approval and compliant utilities; newly installed homes generally require fire sprinklers30. A temporary mobile home or commercial coach during construction requires a building permit for the permanent building and may stay for 6 months, with one additional 6-month renewal if substantial progress and likely completion justify it29.

What are the steps to build a home in unincorporated Yolo County?

  1. Look up the parcel's zoning and confirm its allowed use, minimum lot area and setbacks with Planning at (530) 666-8775151120.
  2. Check the flood map; development in a special flood-hazard area requires a county Development Permit before work begins31.
  3. Hire a septic qualified professional and schedule the site evaluation with Environmental Health7.
  4. Coordinate the building and septic installation applications; a new-system permit requires a building permit, and septic approval must be final before the building permit is final24.
  5. Get an Environmental Health permit if the project needs a well4.
  6. Get a Public Works encroachment permit for driveway construction in a county road right-of-way32.
  7. Submit building plans through Yolo Builds14.
  8. Start work before the permit expires and avoid suspending or abandoning it for 180 days33.

What should you check before you buy land in Yolo County?

Yolo County has had severe drought in 42.2% of years, and rain averages 21.4 inches a year3435. Installing, modifying or abandoning a well requires an Environmental Health permit, and the well needs final inspection before use4.

Check the flood map too: construction or other development in a mapped special-flood-hazard area requires a Development Permit before work starts31. Public Works requires an encroachment permit for driveway work in a county road right-of-way; ask Public Works or Caltrans which access approval applies to a homesite on a state road3236.

Watch-outs

  • Installing, modifying or abandoning a water well requires an Environmental Health permit, and the well needs final inspection before use4.
  • Only 2.5% of Yolo County's soils avoid severe limits for a conventional septic drain field, so budget for a site evaluation with two soil pits and possibly an engineered alternative system57.
  • Construction or other development in a mapped special-flood-hazard area needs a Yolo County Development Permit before work begins31.
  • A permit-exempt agricultural building in the A-N or A-X zones cannot be lived in or used by the public, and its plumbing and electrical still need permits8.
  • Private-property camping does not override Yolo County zoning or State Health Code requirements, and RV dwelling use in a residential zone needs Planning Director approval while a home is being built2710.

Sources

  1. Yolo County Building Inspection Services - Permits (2026 county census)
  2. Layer: Zoning (ID: 2), quoted and re-checked
  3. Land Use Programs | Yolo County, quoted and re-checked
  4. Yolo County Environmental Health: Water Well Program (yolocounty.gov)
  5. 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
  6. Layer: Zoning (ID: 2), quoted and re-checked
  7. Yolo County Environmental Health: septic site evaluations (yolocounty.gov)
  8. Sec. 7-1.04. Amendments to the California Building Code, quoted and re-checked
  9. California Business and Professions Code section 7044, quoted and re-checked
  10. Sec. 8-2.1314. Recreational and commercial vehicle parking in residential zones, quoted and re-checked
  11. Yolo County Code, Sec. 8-2.505. Table of Residential Development Requirements, quoted and re-checked
  12. California Health and Safety Code Section 17922, quoted and re-checked
  13. Approved Building Standards (California statewide rule), quoted and re-checked
  14. Yolo County Building Inspection Services (Department of Community Services) (yolocounty.gov)
  15. Yolo County Planning Division (Department of Community Services) (yolocounty.gov)
  16. Yolo County Environmental Health Division, Land Use Protection Unit (yolocounty.gov)
  17. Layer: Zoning (ID: 2), quoted and re-checked
  18. Current Master Fee Schedule, quoted and re-checked
  19. Land Development & Zoning Ordinance | Yolo County, quoted and re-checked
  20. Yolo County Zoning Code (Title 8), Sec. 8-2.505, quoted and re-checked
  21. Sec. 8-2.506. Specific Use Requirements or Performance Standards, quoted and re-checked
  22. Yolo County Code of Ordinances, Sec. 8-2.505, Table of Residential Development Requirements, quoted and re-checked
  23. Land Use Programs | Yolo County, quoted and re-checked
  24. Yolo County Environmental Health Division Process for Design and Installation of Onsite Wastewater Treatment Systems, quoted and re-checked
  25. Yolo County Environmental Health: Onsite Wastewater Treatment System (septic) Program (yolocounty.gov)
  26. Yolo County Improvement Standards, Section 7.0 Sewer, quoted and re-checked
  27. Sec. 6-13.04. Camping on private property, quoted and re-checked
  28. Chapter 13. Camping within the unincorporated area of Yolo County, quoted and re-checked
  29. Sec. 8-2.1013. Manufactured or mobile homes and trailers, quoted and re-checked
  30. Sec. 7-2.04. Permits for installations of mobile homes, quoted and re-checked
  31. Sec. 8-4.403. Development permit, quoted and re-checked
  32. Yolo County Public Works Division: encroachment permits (yolocounty.gov)
  33. Sec. 7-1.04. Amendments to the California Building Code, quoted and re-checked
  34. Share of years in severe drought: Bolthole Index county data
  35. Annual precipitation: Bolthole Index county data
  36. Sec. 8-2.1408. Specific Use Requirements and Performance Standards, 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, Yolo County has countywide zoning.

RuleYolo CountySolano CountyNapa CountySutter CountySacramento CountyColusa CountyContra Costa County
Building permitRequiredRequiredLimitedRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Env. Health Div.County Env. Health Div.County Env. Health Div.County Development ServicesEMDCounty Env. Health Div.Contra Costa Health

County locator

Yolo County in California

35
County map
Yolo County highlighted among the California counties · colored by Index score

How Yolo County scores

Seclusion17100% ev.
Self-Sufficiency4196% ev.
Admin Boringness40100% ev.
Durability36100% ev.
Property Autonomy56100% ev.
Carry Cost49100% ev.

Evidence strength: 99%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$625kTypical home
0.8%Property tax
$10,780Land / acre
21.4"Annual rain
42.2% of yrsSevere drought
39.7 / yr (+22)Mid-century 100°F days
97.2 daysMid-century dry spell
1.64" (+6.1%)Mid-century 1-day rain
1.07×Wildfire change factor
100%Forward climate coverage
$1,243Home insurance / yr
4.9% / yrInsurance growth
0.61%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
7,198,627People within 2 hr
148,865Radius comparison (15 mi)
217.3People / sq mi
8.2%Federal land
73.4%Land at 15% slope or less
2.5%Soils rated "not limited" for septic (strict USDA rating)
13,741 acWorkable land screen
20.2%Wooded land
17 tonsBiomass / forest ac
62.2°FAvg temp

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Cities and towns in Yolo 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 Yolo County

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

Yolo County rules

  • Building permitRequired

    Construction or change of occupancy classification for the project governed by Yolo County Zone File No. 2023-039, including demolition, grading, and other site improvements.

    • The cited official document is a project-specific county approval and does not establish every countywide permit exception.
    • Application and construction documents must comply with state and local regulations, including the California Building Code, California Residential Code, California Fire Code, California Electrical Code, California Mechanical Code, California Plumbing Code, California Energy Code, and California Green Building Code.
    • Appropriate fees must be paid before issuance of building permits, including applicable permit fees, school and fire district fees, county facility fees, and Environmental Health fees.
    • The project also has fire-access requirements, including access within 150 feet of all building portions, 20-foot-wide fire apparatus access roads, and minimum turning radii of 20 feet interior and 40 feet exterior.

    fire apparatus access distance: <= 150 feet (of all portions of the building) · fire apparatus access road width: >= 20 feet (no parking permitted on either side) · interior turning radius: >= 20 feet · exterior turning radius: >= 40 feet

    “Building and Fire permits shall be required for all construction or change of occupancy classification, including demolition, grading and other site improvements.”
  • Certificate of occupancyLimited

    Structures subject to Yolo County occupancy conditions, including the county's stated occupancy requirements for the cited project and changes of use or occupancy.

    • A Certificate of Occupancy describing the allowed use must be posted in each structure covered by the condition.
    • The structure may not be occupied for a use unless that use is described on the Certificate of Occupancy.
    • A Change of Use/Occupancy application is required if another use is planned.
    • The cited county document is project-specific and does not establish that every residential structure countywide requires a separate Certificate of Occupancy.
    “In each structure, post the Certificate of Occupancy describing the allowed use. Do not occupy any structure with any use unless it is described on the Certificate of Occupancy. Permittee shall apply for a Change of Use/Occupancy if any other use is planned.”
    One more reviewed finding on this topic
    • Limited — Structures in the project governed by Yolo County Zone File No. 2023-039.
      “In each structure, post the Certificate of Occupancy describing the allowed use. Do not occupy any structure with any use unless it is described on the Certificate of Occupancy. Permittee shall apply for a Change of Use/Occupancy if any other use is planned.”
  • County-wide zoningPresent (with conditions)

    County zoning districts and land-use controls in the unincorporated portions of Yolo County.

    • The source expressly limits this county zoning layer to unincorporated portions of the county.
    • Incorporated municipalities may administer separate local zoning rules.
    “Description: This is the zoning layer for the County of Yolo. It inlcudes only zoning for the unincorporated portions of the county.”
  • Local zoningPresent (with conditions)

    Local zoning in the unincorporated portions of Yolo County.

    • The source identifies this zoning layer as covering only the unincorporated portions of the county.
    • Incorporated municipalities are outside the geographic scope of this claim.
    “This is the zoning layer for the County of Yolo. It inlcudes only zoning for the unincorporated portions of the county.”
  • Zoning districtsPublished (with conditions)

    Zoning districts mapped and regulated by Yolo County in unincorporated portions of the county.

    • The County GIS zoning layer expressly covers only unincorporated portions of Yolo County.
    • The County's Title 8 contains the main zoning regulations in Chapter 2; incorporated municipalities may administer their own zoning rules.
    • The opened GIS layer publishes district labels including POS, O-S, SP, A-N, A-C, A-X, A-I, A-R, P-R, RR-2, RR-5, R-L, R-M, R-H, C-G, C-L, I-H, I-L, DMX, C-H, PQP, and OPRD.

    published zoning district: Agricultural Intensive (A-N) · published zoning district: Rural Residential - 2 Acre (RR-2) · published zoning district: Low Density Residential (R-L) · published zoning district: Medium Density Residential (R-M) · published zoning district: General Commercial (C-G) · published zoning district: Heavy Industrial (I-H) · published zoning district: Downtown Mixed Use (DMX)

    “This is the zoning layer for the County of Yolo. It inlcudes only zoning for the unincorporated portions of the county.”
    One more reviewed finding on this topic
    • Published — County zoning regulations and zoning-district materials for unincorporated Yolo County.
      “Title 8 (approximately 363 pages of text) consists mainly of the County zoning regulations (Chapter 2 of Title 8). Title 8 also includes subdivision land development regulations used by Public Works (Chapter 1) and Flood Protection Regulations (Chapter 4).”
  • Minimum dwelling sizeNone (with conditions)

    Primary dwellings in the RR-5 residential zoning district in unincorporated Yolo County.

    • The table's development requirements are standards or conditions that allowed and permitted uses in residential zones must meet for an issued building permit, Site Plan Review, or Use Permit.
    • The stated absence of a size limit applies only to the primary dwelling in RR-5.
    • A second dwelling is limited to no greater than 2,500 square feet.
    • The table also states a 5.0-acre minimum lot area, listed setbacks, a 35-foot residential height limit, and one primary dwelling plus one second dwelling per parcel.

    minimum primary dwelling size: No limit square feet (RR-5 primary dwelling) · maximum second dwelling size: <= 2500 square feet (RR-5 second dwelling)

    “RR-5 | 5.0 acres | 20 feet from property line, or 50 feet from centerline of roadway, whichever is greater(2) | 25 feet from property line | 10 feet from property line | 35 feet for residential uses; no limit for agricultural uses, except for accessory or conditional uses | No limit on primary dwelling; second dwelling no greater than 2,500 square feet | One primary dwelling plus one second dwelling per parcel”
  • Minimum lot sizeDistrict specific (with conditions)

    Residential zones in unincorporated Yolo County: RR-5, RR-2, R-L, R-M, and R-H.

    • The standards apply to allowed and permitted uses as a standard or condition of an issued building permit, Site Plan Review, or Use Permit.
    • Parcels in rural areas without access to public water and/or wastewater services are subject to a 2.0-acre minimum parcel size for new building permits.
    • The R-L table minimum is 1,200 square feet, but at least 2.0 acres if no services; RR-5 is 5.0 acres; RR-2 is 2.0 acres; R-M is 1,200 square feet; and R-H is 1,500 square feet.
    • The cited ordinance states amendments effective August 14, 2014, October 29, 2015, March 24, 2016, June 7, 2018, August 6, 2020, and March 10, 2022.

    RR-5 minimum lot area: 5 acres · RR-2 minimum lot area: 2 acres · R-L minimum lot area: 1,200 square feet; minimum of 2.0 acres if no services (Parcels in rural areas with no access to public water and/or wastewater services are subject to a 2.0 acre minimum parcel size for new building permits.) · R-M minimum lot area: 1200 square feet · R-H minimum lot area: 1500 square feet

    “RR-5 | 5.0 acres [...] RR-2 | 2.0 acres [...] R-L | 1,200 square feet”
  • SetbacksDistrict specific (with conditions)

    Allowed and permitted residential uses in Yolo County's unincorporated RR-5, RR-2, R-L, R-M, and R-H zoning districts.

    • The standards apply as a standard or condition of an issued building permit, Site Plan Review, or Use Permit.
    • RR-5 and RR-2 share the same listed setbacks: front 20 feet from the property line or 50 feet from the roadway centerline, whichever is greater; rear 25 feet from the property line; side 10 feet from the property line.
    • The yard abutting a County road is considered the front yard.
    • Properties abutting a major arterial require a 30-foot front yard setback measured from the edge of the road right-of-way.
    • Setback requirements for accessory structures may be different; see Section 8-2.506(a) and (b).
    • Appropriate findings are required for discretionary and ministerial residential projects located within the floodplain; see Section 8-2.306(ae).
    • Development near the toe of any levee is restricted; residential, accessory, and other structures must comply with a 100-foot setback from streams unless the lot's size or configuration makes that requirement infeasible.
    • The listed ordinance history states Ordinance 1445 effective August 14, 2014; Ordinance 681.229 effective October 29, 2015; Ordinance 1466 effective March 24, 2016; Ordinance 1497 effective June 7, 2018; Ordinance 1522 effective August 6, 2020; and Ordinance 1547 effective March 10, 2022.

    RR-5 front setback: 20 feet from property line, or 50 feet from roadway centerline, whichever is greater (30 feet from edge of road right-of-way when abutting a major arterial) · RR-2 front setback: 20 feet from property line, or 50 feet from roadway centerline, whichever is greater (30 feet from edge of road right-of-way when abutting a major arterial) · RR-5 rear setback: 25 feet from property line · RR-2 rear setback: 25 feet from property line · RR-5 side setback: 10 feet from property line · RR-2 side setback: 10 feet from property line · R-L front setback: 10 feet from property line or curb strip; 20 feet for a garage · R-L rear setback: 20 feet from property line · R-L side setback: 5 feet from property line (Less than 5 feet requires a Use Permit) · R-M front setback: 10 feet from property line or curb strip; 20 feet for a garage · R-M rear setback: 15 feet from property line · R-M side setback: 5 feet from property line (Less than 5 feet requires a Use Permit) · R-H front setback: 10 feet from property line or curb strip · R-H rear setback: 10 feet from property line (Less than 10 feet requires a Use Permit) · R-H side setback: 10 feet from property line (Less than 10 feet requires a Use Permit) · stream setback: 100 feet (Applies to residential, accessory, and other structures unless the size or configuration of the lot makes the requirement infeasible)

    “RR-5 | 5.0 acres | 20 feet from property line, or 50 feet from centerline of roadway, whichever is greater(2) | 25 feet from property line”
  • Living in an RVLimited

    Occupancy of a recreational vehicle as a residential dwelling on residential property in unincorporated Yolo County

    • The rule applies to residential properties in any residential zone within the unincorporated County.
    • Residential occupancy is prohibited both temporarily and permanently unless the Planning Director approves an application for a temporary dwelling during construction of a home.
    • Recreational vehicles may be parked outside required front, side, or rear yards adjacent to a public street if the area is paved under Section 8-2.1313.
    • A recreational vehicle may be parked in a garage if applicable residential parking requirements remain satisfied.
    • The Zoning Administrator may issue a permit for parking in a required yard adjacent to a public street under Section 8-2.206.
    • Violations are infractions; four or more violations by one person during the preceding twelve months constitute a misdemeanor.
    “No recreational vehicle, as defined in this section, shall be utilized or occupied as a residential dwelling, either temporarily or permanently”
    2 more reviewed findings on this topic
    • Temporary only (with conditions) — Use or occupancy of a recreational vehicle as a residential dwelling on residential properties in any residential zone within unincorporated Yolo County.
      “(a) Scope. This Section specifies the requirements for the parking of recreational vehicles and commercial vehicles, and the provision of parking spaces for such vehicles, on residential properties located in any residential zone within the unincorporated county. [...] (2) No recreational vehicle, as defined in this section, shall be utilized or occupied as a residential dwelling, either temporarily or permanently, unless an application is approved by the Planning Director for a temporary dwelling during the construction of a home.”
    • Limited — Use or occupancy of recreational vehicles as residential dwellings on residential properties in any residential zone within unincorporated Yolo County.
      “No recreational vehicle [...] shall be utilized or occupied as a residential dwelling [...] unless an application is approved by the Planning Director”
  • Camping on your landLimited

    Overnight camping or squatting on private property within unincorporated Yolo County.

    • Camping on private property is unlawful unless an exception applies.
    • Camping is excepted on the camper's own land, with the landowner, or with the landowner's written consent in the camper's possession and shown upon demand of a peace officer.
    • All local county zoning ordinances and all California Health Code sections must be complied with.
    • Lawful camping is also allowed within campgrounds or trailer parks specifically designated or approved under the County Zoning Ordinance.
    • Violation is charged as a misdemeanor.
    “Exceptions. This section shall not apply to persons camping upon their own land or camping with the owner of the land”
    3 more reviewed findings on this topic
    • Limited — Overnight camping or squatting on private property within unincorporated Yolo County
      “Except as otherwise provided in this section, it is unlawful to camp or squat upon private property within the unincorporated area of the County.”
    • Limited — Overnight camping or squatting on private property within unincorporated Yolo County.
      “Except as otherwise provided in this section, it is unlawful to camp or squat upon private property within the unincorporated area of the County.”
    • Prohibited — Overnight camping or squatting on public property owned or maintained by Yolo County within the unincorporated area.
      “Except as may be permitted within parks by the Park and Recreation Director, it is unlawful to camp or squat upon any public property”
  • Manufactured homesLimited

    Installation and occupancy of manufactured housing or mobile homes in unincorporated Yolo County

    • The Department of Community Services issues the permit after an application with required plans, specifications, data, and payment of required County and State fees.
    • California Department of Housing and Community Development approval must be valid and current.
    • Foundation installations must comply with HCD requirements and may require plans prepared by a California-licensed architect or engineer.
    • New manufactured housing or mobile homes installed in Yolo County require fire sprinklers, subject to the stated exception for residential occupancies previously installed under a Yolo County permit.
    • Utility connections, grading, waste treatment facilities, accessory equipment and structures must comply with applicable regulations, with a building permit where required.
    • The Director of Community Services or designee must approve the site plan under the Mobile Home Park Conversion Ordinance, and all site-plan conditions must be satisfied.
    “Such permit shall be issued if the Department of Community Services make all the following findings:”
    3 more reviewed findings on this topic
    • Limited — Permanent or temporary use of manufactured or mobile homes as residences on individual lots in unincorporated Yolo County
      “used as substitutes for “stick built” residences in the agricultural zones, and in other zones if the home is an allowed or permitted use”
    • Limited — Temporary or permanent use of manufactured or mobile homes as residences on individual lots in unincorporated Yolo County.
      “Manufactured or mobile homes may be located on individual lots and temporarily or permanently used as substitutes for “stick built” residences”
    • Limited — Occupancy of certified manufactured homes attached to a qualifying foundation system as permanent residences in residential areas of unincorporated Yolo County.
      “Certified manufactured homes [...] shall be considered a permanent residence.”
  • Accessory dwellingsAllowed

    Accessory dwelling units in residential zones within unincorporated Yolo County.

    • An ADU meeting the minimum requirements is not subject to discretionary review.
    • A ministerial ADU permit may be disapproved only if the Planning Director finds the ADU would be detrimental to public health and safety or would introduce unreasonable privacy impacts to immediate neighbors.
    • The building permit application must be approved or disapproved within 120 days of receipt.
    • The maximum height within a required setback is 16 feet.
    • Existing-structure conversions generally require no setback; newly constructed ADUs not resulting from a conversion require a four-foot side and rear setback.
    • One parking space per ADU is generally required, with stated exceptions for transit access, historic districts, certain existing structures, and nearby car-share vehicles.
    • Attached ADUs are limited to 50 percent of the existing primary-residence living area, with a maximum increase of 1,200 square feet; detached ADUs are limited to 1,200 square feet.

    ADU application decision deadline: 120 days (from receipt of the building permit application) · maximum height within required setback: 16 feet · new-construction side and rear setback: 4 feet (does not apply to qualifying conversions of existing structures) · detached ADU maximum floor area: <= 1200 square feet · attached ADU maximum share of existing primary-residence living area: <= 50 percent (with a maximum increase of 1,200 square feet)

    “Accessory dwelling units (ADU) in residential zones are a permitted use”
  • Who permits septicCounty

    Onsite wastewater treatment systems and septic systems in Yolo County.

    • The county Environmental Health program regulates OWTS where community sewer connection is unavailable.
    “Onsite Wastewater Treatment System (OWTS) Program regulates OWTSs, or more commonly known as "Septic Systems".”
  • Septic permitRequired

    New or replacement onsite wastewater treatment systems in Yolo County subject to Yolo County Environmental Health review.

    • A Septic System Installation Permit Application is required.
    • There are two OWTS permit types: Standard (gravity) and Alternative.
    • The site evaluation determines which system is appropriate for the parcel and project.
    • Installation cannot begin until an approved Septic System Installation Permit has been approved and issued by Yolo County Environmental Health.
    • For building permits, the septic permit must be finalized before the building permit is finalized.
    • A new septic system installation permit will not be issued without a building permit.
    • Each system type has different operating, monitoring, and maintenance requirements and may include an annual Operating Permit.

    standard OWTS permit fee: 1531 USD (up to 6.5 hours) · alternative OWTS permit fee: 2035 USD (up to 8.6 hours)

    “required for new or replacement septic systems: [...] Installation of the system cannot begin until an approved Septic System Installation Permit has been [...] issued by YCEH.”
  • Off-grid sanitationLimited

    Onsite septic/OWTS sanitation where connection to a community sewer system is unavailable.

    • Septic systems are the county-described onsite treatment option when community sewer is unavailable.
    • Installation requires an approved Yolo County Environmental Health septic installation permit before work begins.
    • A new septic installation permit requires a building permit.
    • Alternative systems may require annual operating permits and service-provider reports.
    “Septic systems are used to treat human sewage on a site where connection to a community sewer system is not available.”
  • Mandatory utility hookupSewer (with conditions)

    Developed areas subject to the Yolo County Improvement Standards where a legal parcel contains a source of sewage and is less than 200 feet from a sewer collector.

    • The rule applies to developed areas and the parcel/property-line distance condition stated in the standards.
    • The cited standard requires a sewer service to be provided; it does not establish a universal countywide connection rule for every parcel.
    • Sewer service location and construction remain subject to the Improvement Standards and County Engineer requirements.

    maximum property-line distance from collector: < 200 feet (applies to developed areas containing a source of sewage)

    “In developed areas, a sewer service shall be provided to each legal parcel containing a source of sewage and having a property line less than 200 feet from a collector.”
  • Agricultural exemptionAvailable (with conditions)

    Permit-exempt agricultural buildings in Yolo County A-N or A-X zones.

    • The building must be an agricultural building used to house farm implements, hay, grain, poultry, livestock, or horticultural products; it cannot be a place of human habitation, employment where agricultural products are processed, treated, or packaged, or a place used by the public.
    • The Director or designee must determine the building is in an A-N or A-X zone and complies with Title 8 zoning requirements, including setbacks and site plan approvals, and all applicable state and federal laws.
    • The building must comply with Title 7 construction standards and California Building Code Appendix C Section C102 height and area limits.
    • Plumbing and electrical work require separate permits; no mechanical permit is allowed within the exempt building.
    • Written Fire Code Official compliance determination is required, including fire access and water supply.
    • Additional flood-zone, sanitation, health, water-quality, parcel-boundary, and fire-separation conditions apply.
    • The property owner or authorized agent must file a written application with the Chief Building Official, scaled plot plan, and written use/indemnity/successor agreement.
    • The exemption exists only while the building remains an agricultural building; a full permit process is required for another use.

    agricultural zoning: A-N or A-X · nonagricultural parcel separation: >= 60 feet (Building must be no closer than 60 feet from a parcel boundary not zoned agricultural)

    “A building permit shall not be required for an agricultural building that satisfies all of the following conditions:”
  • Subdividing landRegulated (with conditions)

    Subdivision and related land-development activity administered through Yolo County Title 8 Chapter 1 and used by Public Works.

    • The opened county page identifies Chapter 1 as subdivision land-development regulations used by Public Works; detailed map, parcel, improvement, application, and approval requirements were not established from the opened page.
    • Rules may differ inside incorporated municipalities.
    “Title 8 (approximately 363 pages of text) consists mainly of the County zoning regulations (Chapter 2 of Title 8). Title 8 also includes subdivision land development regulations used by Public Works (Chapter 1) and Flood Protection Regulations (Chapter 4).”
  • Driveway accessLimited

    Driveway access for cannabis uses regulated under Yolo County Code Section 8-2.1408 in unincorporated Yolo County.

    • Driveway approaches to County- and State-maintained roads must comply with current County Improvement Standards or Caltrans requirements, as applicable.
    • An encroachment permit may be required.
    • Controlled-access entries must provide a rapid-entry system approved by the local fire district or fire service provider and enough space for emergency vehicles to access the lock without impeding the right-of-way.
    • A County-assigned street address is required and must be posted according to Fire Code display requirements.
    • The permittee must demonstrate safe and adequate driveway access to the satisfaction of the County or Caltrans, as applicable.
    • Section 8-1.802 access considerations apply.
    • Driveways must have an all-weather surface, such as compacted gravel.
    “Driveway approaches to County and State maintained roads shall be per current County Improvement Standards or Caltrans requirements, as applicable.”
  • Building in a floodplainRequired

    Construction or other development within an area of special flood hazards established under Yolo County Code Section 8-4.302.

    • A Development Permit must be obtained before construction or other development begins.
    • The application must use forms furnished by Yolo County.
    • Minimum submittal information includes duplicate scaled plans showing location, dimensions, elevations, structures, storage, utilities, grading, proposed fill, drainage, regulatory floodway when applicable, and base-flood elevation information.
    • The application must include the proposed lowest-floor elevation, proposed nonresidential floodproofing elevation, required registered-civil-engineer or architect certification for nonresidential floodproofed buildings, crawl-space foundation opening information, watercourse alteration information, and other certifications required by Section 8-4.402(e).
    • The cited section states that the rule was enacted by Ordinance 1500, effective July 26, 2018.

    floodplain permit timing: before construction or other development begins

    “A Development Permit shall be obtained before any construction or other development begins within any area of special flood hazards”
  • Permit feesPublished (with conditions)

    County building-permit fees for work subject to the Yolo County Building Code.

    • Fees are paid according to the current fee schedule adopted by the Board of Supervisors.
    • Permit fees and required plan checks are based on project value; electrical, plumbing, and mechanical fees are based on a percentage of the building permit fee.
    • The Chief Building Official determines project valuation and maintains the current fee schedule for public review.
    • The cited fee schedule has a print date of 12/12/2025; the code authorizes periodic adjustment.
    • The fee schedule also lists separate issuance, plan-review, inspection, reinspection, flood, state-pass-through, and other applicable fees.

    building permit fee for $1-$10,000 valuation: 149 USD base fee (plus $12.00 per $1,000 based on valuation) · building permit issuance fee: 56 USD per permit · single-family/garage plan review fee: 65% of building permit fee (up to two reviews) · reinspection fee: per 145 USD per hour (1.5-hour minimum)

    “Building Permit Fee - $1-$10,000 Valuation 149.00 / Base Fee Plus $12.00 per $1,000”
  • Permit processPartial

    County building-permit processing, including permit expiration, extensions, reinspection, and the county agricultural-building exemption process.

    • A permit expires if authorized work is not commenced within 12 months from the permit date or is suspended or abandoned for 180 days.
    • An unexpired permit may receive one or more written extensions of no more than 180 days each for good and satisfactory reasons; the request must be written, demonstrate justifiable cause, and include the applicable extension-review fee.
    • To obtain a reinspection, the applicant must call and schedule it and pay the current reinspection fee.
    • A permit-exempt agricultural-building application must be filed by the property owner or authorized agent, include a scaled plot plan showing specified site features, and include the owner's written agreement to use the building only as an agricultural building and to obtain a full-fee permit if that use changes.
    • The cited material does not establish the complete ordinary application-submittal, plan-review, inspection-sequencing, or owner-builder process.

    permit commencement deadline: 12 months from permit date · permit suspension or abandonment period: 180 days · maximum extension period per extension: <= 180 days (written request with justifiable cause and extension-review fee)

    “The extension shall be requested in writing with justifiable cause demonstrated and accompanied by an extension request review fee”

California rules that apply here

  • 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”
    4 more reviewed findings on this topic
    • Conditional — Owner-builders performing or arranging construction work in California, including Yolo County.
      “(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”
    • Conditional — Owner-builders performing or arranging construction work in California, including Yolo County, for purposes of the contractor-licensing exemption in 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, provided that both of the following conditions are met: (A) None of the improvements are intended or offered for sale. (B) The property owner personally performs all of the work or any work not performed by the owner is performed by the owner’s employees with wages as their sole compensation.”
    • 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”
    • 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”
  • Building code adoptedAdopted (with conditions)

    California Building Standards Code, California Code of Regulations, Title 24, including the 2025 California Building Code and related parts, for buildings and structures subject to the state code.

    • The 2025 California Building Standards Code applies to buildings and structures with a permit application date on or after January 1, 2026.
    • The applicable local building department or enforcing agency determines how the permit application date is established in a specific jurisdiction.
    • The code includes multiple parts, including the California Building Code, California Residential Code, Existing Building Code, Electrical Code, Mechanical Code, Plumbing Code, Energy Code, Wildland-Urban Interface Code, Fire Code, and Green Building Standards Code.

    effective date: 2026-01-01 · permit application date: >= 2026-01-01

    “The 2025 California Building Standards Code (CBSC), California Code of Regulations (CCR), title 24, will become effective on January 1, 2026, as a result of the 2024 Triennial Code Adoption Cycle. [...] The 2025 CBSC applies to all buildings and structures with a permit application date on or after January 1, 2026.”
    2 more reviewed findings on this topic
    • Adopted — California Building Standards Code and Title 24 building standards applicable in Yolo County, subject to authorized local amendments and local land-use requirements.
      “the other rules and regulations that are contained in Title 24 of the California Code of Regulations, [...] shall be adopted by reference”
    • Adopted — California statewide building standards, including residential construction subject to Title 24 of the California Code of Regulations.
      “Except as otherwise specifically provided by law, the building standards adopted and submitted by the department for approval [...] shall be adopted by reference”
  • 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”
    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.”
  • 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).”
  • 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.”
  • 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.”
    One more reviewed finding on this topic
    • 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.”
  • 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 — Lot coverage in unincorporated Yolo County.
  • Building height — Building-height requirements in unincorporated Yolo County.
  • Short-term rentals — Short-term-rental land-use regulation in unincorporated Yolo 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 Yolo County

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

Actively managed

This basin is under active state management — new water use is scrutinized, though a domestic well is usually still allowed.

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 ↗
  • Sacramento Valley high-priority subbasinspartial of county

    High-priority SGMA subbasins (Corning, Colusa, Vina, Antelope-Tehama, South Yuba, North & South American, Solano, Yolo) with adopted GSPs; a new well is subject to GSA/EO N-7-22 consistency review.

    California DWR — SGMA Basin Prioritization ↗

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 Yolo County, California

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

Yolo County scores 35/100 on the Bolthole Index, a marginal county profile. Watch-outs: about 148,865 people within 15 miles and elevated mid-century heat, water, rain, or wildfire exposure.

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

Yolo County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Yolo County Environmental Health Division - Onsite Wastewater Treatment System Program. 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 Yolo County?

Living in an RV on your own land in Yolo County is limited to specific cases: Occupancy of a recreational vehicle as a residential dwelling on residential property in unincorporated Yolo County The rule applies to residential properties in any residential zone within the unincorporated County. Residential occupancy is prohibited both temporarily and permanently unless the Planning Director approves an application for a temporary dwelling during construction of a home. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Yolo County, California?

Land in Yolo County runs about $10,780 per acre, based on the latest county data.

What is the water situation in Yolo County?

Yolo County gets about 21.4" of rain a year, with severe drought in roughly 42.2% of years. On water rights, Yolo County lies in the Sacramento Valley high-priority subbasins — High-priority SGMA subbasins (Corning, Colusa, Vina, Antelope-Tehama, South Yuba, North & South American, Solano, Yolo) with adopted GSPs; a new well is subject to GSA/EO N-7-22 consistency review..

How remote is Yolo County?

A typical private-land location has about 148,865 people within 15 miles and 8,677,754 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

How Yolo compares in California

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