Bolthole Index

Millard County, Utah

Building permits, zoning and land rules in Millard County, Utah

36Index Score / 100
#27 of 29 in Utah

Unincorporated Millard County, Utah requires a building permit for residential construction and applies county zoning to land outside incorporated municipalities.12 The Millard County Building Inspection Department handles construction permits, while Central Utah Public Health Department permits onsite wastewater systems.34

At a glance

Building permit
Required for residential construction in unincorporated Millard County1
Zoning
County zoning applies to unincorporated land2
Septic
Central Utah Public Health Department permit required before construction5
RV living
Campgrounds are conditional uses in some districts and prohibited in others; private-parcel occupancy is not confirmed6
Tiny home
Depends on local land-use classification and county approval78
Owner-builder
A limited contractor-license exemption is available, but permits and codes still apply9
Private well
A valid water right and State Engineer permission are required before drilling10

Who to call

Building permits

Millard County Building Inspection Department

Building permits, code enforcement and inspections

435-864-1400

71 South 200 West PO Box 854 Delta, Utah

Planning & zoning

Millard County Planning and Zoning

Zoning, land-use applications and Planning Commission matters

435.864.1400

71 South 200 West PO Box 854 Delta, UT 84624

Septic permits

Central Utah Public Health Department

Onsite wastewater construction permits in Millard County

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 Millard County, Utah?

Yes. Residential construction in unincorporated Millard County requires a building permit, and the county enforces adopted construction codes.111 The permit requirement also reaches regulated alterations, repairs, moves, demolition, occupancy changes, and regulated gas, mechanical, or plumbing work.3

An agricultural structure used only for agriculture and never for human occupancy may qualify for an exemption, but plumbing, electrical, and mechanical permits can still be required.12 The exemption has additional location and acreage conditions, so bring the parcel and proposed use to Building Inspection before treating a barn or shed as exempt.12

Who handles Millard County building permits?

The Millard County Building Inspection Department handles construction permits, code enforcement, and inspections; its office is at the county's Delta location and can be reached at the contact shown above.3 The county's own guidance is direct: regulated work requires an application to the Building Official and the required permit before work begins.3

Planning and Zoning is the companion stop for parcel zoning, permitted or conditional uses, and land-use applications.13 A project can satisfy construction codes yet still need land-use approval because the county table classifies uses by zoning district.2 Ask both offices to review the parcel before ordering plans or scheduling site work.

Does Millard County have zoning?

Yes. Millard County zoning governs uses and development intensity on unincorporated land, while incorporated municipalities fall outside that county ordinance's stated scope.142 The county table makes uses permitted, conditional, or prohibited depending on the district, and an unlisted use is prohibited.2

That district-by-district approach matters for RVs, tiny homes, setbacks, and minimum dwelling size. Campgrounds are conditional in some districts and prohibited in others, but that rule does not answer whether one RV may be occupied on a private parcel.6 We could not confirm a generally applicable minimum dwelling size for unincorporated Millard County; ask Planning and Zoning for the parcel's district standards and the proposed dwelling classification.

How do septic permits work in Millard County?

Central Utah Public Health Department administers onsite wastewater permits in Millard County, and no part of a system may be constructed before the department issues its construction permit.45 The application package calls for an application, soil classification, site plan, system design, and—when applicable—an operation and maintenance plan or contract.5

Only 15.3% of mapped soils avoid a “very limited” rating for a conventional drain field, so soil evaluation should happen early rather than after the house site is fixed.15 Public-sewer connection is required when available and practicable; otherwise an adequate onsite or otherwise accepted wastewater system is required.16 We could not confirm a general pre-backfill inspection rule from the available county material, so ask the health department about inspection stages when applying.

Can you live in an RV or tiny home in Millard County?

Millard County's campground rule does not create blanket permission to live in an RV on private land. Campgrounds are conditional uses in RF, AG-20, AG, and HC districts and prohibited in AI, R1, LI, and HI districts.6 The available county rule does not state a maximum stay for an authorized campground.17

Tiny-home permission also depends on classification and land-use approval. Utah's RV-park rule allows a qualifying tiny house in an RV park under certification, code, and local-ordinance conditions, but outside a park the answer depends on local treatment as a primary dwelling, accessory dwelling, modular unit, or manufactured home.7 Ask Planning and Zoning about the parcel and intended occupancy before buying or moving a unit.

What are the steps to build a home in Millard County?

  1. Ask Planning and Zoning to confirm that the parcel is unincorporated, identify its district, and determine whether the home and accessory uses are permitted or conditional.2
  1. Confirm legal water. A private well needs a valid water right before construction, and the State Engineer's Start Card serves as the well-construction permit.10
  1. Apply to Central Utah Public Health Department for onsite wastewater approval before any septic construction.5
  1. Submit the building application and plans to Millard County Building Inspection, then obtain the required permit before construction.3
  1. Arrange required inspections with Building Inspection; using an owner-builder license exemption does not waive permits, inspections, or construction-code compliance.9

What should you check before buying land in Millard County?

Start with water, wastewater, zoning, legal access, and flood exposure. A private well requires a valid water right and State Engineer permission, while the low share of soils without severe conventional-drain-field limits makes early septic testing especially useful.1015

For access, subdivision and conditional-use applications must identify proposed road connections, and work in a county road right-of-way requires an encroachment permit and at least a $1,000 bond.18 A new connection to a state highway requires a UDOT conditional access permit.19 Millard County has very low population density and substantial federal land, which can make title, access, and service-area verification as important as the asking price.2021

Watch-outs

  • An owner-builder exemption concerns contractor licensing; it does not cancel Millard County building permits, inspections, or code requirements.9
  • Do not assume an agricultural building is exempt if it will be occupied or contain bathroom facilities; ask Building Inspection to confirm eligibility before construction.12
  • Private-parcel RV occupancy and a generally applicable minimum dwelling size remain unconfirmed; ask Millard County Planning and Zoning about the exact parcel and use.13

Sources

  1. Millard County - Building Inspection (2026 county census)
  2. Title 10, Chapter 16 — Establishment of Zoning Districts, quoted and re-checked
  3. Millard County Building Inspection Department (millardcounty.gov)
  4. Onsite Wastewater Permit Instructions, quoted and re-checked
  5. Onsite Wastewater Permit Instructions, quoted and re-checked
  6. Millard County Code § 10-25-1, Appendix A: Table of Uses, quoted and re-checked
  7. OPRO Accessory Dwellings (ADU's) and other dwelling types (Utah statewide rule), quoted and re-checked
  8. Millard County Planning Commission Minutes, December 3, 2025, quoted and re-checked
  9. Utah Code Title 58, Chapter 55 – State Construction Trades Licensing Act, quoted and re-checked
  10. Water Well Drilling, quoted and re-checked
  11. Building Inspection – Millard County, quoted and re-checked
  12. Building Inspection – Millard County, quoted and re-checked
  13. Millard County Planning and Zoning (millardcounty.gov)
  14. Planning and Zoning – Millard County, quoted and re-checked
  15. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  16. DAR File No. 37575, Rule R317-4, Onsite Wastewater Systems (Utah statewide rule), quoted and re-checked
  17. Millard County Code § 10-25-1, Appendix A: Table of Uses, quoted and re-checked
  18. Millard County Planning and Zoning Plat Subdivision Application, quoted and re-checked
  19. Conditional Access Permit (Utah statewide rule), quoted and re-checked
  20. Population density: Bolthole Index county data
  21. Federal land share: Bolthole Index county data

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.

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County locator

Millard County in Utah

36
County map
Millard County highlighted among the Utah counties · colored by Index score

How Millard County scores

Seclusion85100% ev.
Self-Sufficiency13100% ev.
Admin Boringness40100% ev.
Durability35100% ev.
Property Autonomy60100% ev.
Carry Cost81100% ev.

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

$350kTypical home
0.5%Property tax
$3,334Land / acre
10.1"Annual rain
27% of yrsSevere drought
17.2 / yr (+14.5)Mid-century 100°F days
34.4 daysMid-century dry spell
0.7" (+7%)Mid-century 1-day rain
1.13×Wildfire change factor
100%Forward climate coverage
$955Home insurance / yr
4% / yrInsurance growth
1.69%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
12,582People within 2 hr
3,541Radius comparison (15 mi)
2People / sq mi
77.1%Federal land
76.2%Land at 15% slope or less
15.3%Septic soil without severe limits
622,042 acWorkable land screen
7.6%Wooded land
10.7 tonsBiomass / forest ac
51.3°FAvg temp

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Answers from the rulebook for Millard County

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

Millard County rules

  • Building code adoptedAdopted (with conditions)

    Building-code enforcement and building construction regulated by the Millard County Building Inspection Department.

    • Millard County states that it uses the listed codes with State of Utah Amendments.
    • Construction requiring a permit must first receive the required permit from the Building Official.
    • A structure used solely in conjunction with agriculture and not for human occupancy is generally exempt from state-construction-code permit requirements, subject to the cited exceptions.
    • Agricultural structures are not exempt when located within a city or town on less than five contiguous acres, or within a county-approved subdivision on less than two contiguous acres, unless located in an agricultural protection area as described on the page.

    International Residential Code edition: 2021 · International Building Code edition: 2021 · International Plumbing Code edition: 2021 · International Mechanical Code edition: 2021 · National Electrical Code edition: 2020 · International Fuel/Gas Code edition: 2021 · International Energy Conservation Code edition: 2021 Residential & Commercial

    “Millard County adheres to the following codes with State of Utah Amendments”
  • County-wide zoningPresent (with conditions)

    County zoning regulation of land use, intensity, and other requirements on unincorporated lands in Millard County.

    • The cited zoning-district ordinance applies to unincorporated lands located within the County.
    • Zoning districts and the Millard County Zoning Districts Map govern applicable uses and activities.
    • Uses may be permitted, conditional, or prohibited depending on the zoning district and the county Table of Uses.

    zoning district count listed in cited ordinance: 10 districts (The Sensitive Lands Overlay District is stated to be not mapped.)

    “Zoning Districts that govern the use, intensity and other requirements for the use or activities occurring on all unincorporated lands located within the County.”
  • Local zoningPresent (with conditions)

    Millard County's locally administered zoning system for unincorporated lands.

    • The county ordinance divides unincorporated lands into zoning districts.
    • The ordinance's Table of Uses identifies permitted, conditional, and prohibited uses by zoning district.
    • The ordinance states that a use not identified in the Table of Uses is prohibited in Millard County.
    • Incorporated municipalities are outside the geographic scope expressly stated in the cited county ordinance.

    listed zoning districts: RF, AG-20, AG, AI, R1, HC, LI, HI, TC, and SL overlay (The Sensitive Lands Overlay District is not mapped.)

    “The provisions of this title shall apply to all unincorporated lands located within the boundaries of Millard County”
  • Living in an RVLimited

    Occupancy of recreational vehicles at campgrounds in unincorporated Millard County.

    • The county table defines a campground as land with one or more sites maintained for occupancy by a tent or recreational vehicle.
    • Campgrounds are conditional uses in RF, AG-20, AG, and HC zoning districts.
    • Campgrounds are prohibited in AI, R1, LI, and HI zoning districts.
    • A C-1 conditional use is approved by the Millard County Planning Commission.
    “Campground. An area of land upon which 1 or more sites are established and maintained for occupancy by a tent or recreational vehicle. | C-1 | C-1 | C-1 | X | X | C-1 | X | X”
  • Camping on your landAllowed (with conditions)

    Temporary camping by tents or recreational vehicles at county-authorized campgrounds in unincorporated Millard County.

    • The campground use is conditional in RF, AG-20, AG, and HC zoning districts and prohibited in AI, R1, LI, and HI districts.
    • The county code excerpt does not state a maximum camping duration for campgrounds.
    • A C-1 conditional use is approved by the Millard County Planning Commission.
    “Campground. An area of land upon which 1 or more sites are established and maintained for occupancy by a tent or recreational vehicle. | C-1 | C-1 | C-1 | X | X | C-1 | X | X”
    One more reviewed finding on this topic
  • Tiny homesAllowed (with conditions)

    A permanent tiny house used as an accessory dwelling unit at approximately 3550 N 2000 W, Delta, as considered by the Millard County Planning Commission.

    • The Planning Commission minutes describe the tiny house as permanent and intended for family members to stay in.
    • Utilities and septic were discussed.
    • The application was approved as a C-1 Conditional Use Permit for construction of an accessory dwelling unit.
    • The approval basis included compliance with the applicable zoning district, minimum area, setbacks, height, site plan, building, infrastructure, health, safety, and other federal, state, and local requirements.
    “He would like to build a permanent tiny house on the property to live in while he does renovations on the existing house. He would like the new home to stay permanently for family members to stay in while they come visit. [...] Approve the C-1 Conditional Use Permit Application permitting the construction of an accessory dwelling unit.”
  • Who permits septicLocal (with conditions)

    Onsite wastewater systems in Millard County within the Central Utah Health District jurisdiction.

    • Construction of any portion of the wastewater system requires a CUHD-issued construction permit before work begins.
    • The permit instructions cite Utah Administrative Code R317-4.
    “Construction of any portion of the wastewater system may not begin until a construction permit has been issued by CUHD (UAC R317-4).”
  • Septic permitRequired

    Construction of any portion of an onsite wastewater system in Millard County within the Central Utah Health District jurisdiction.

    • Construction may not begin until CUHD issues the construction permit.
    • The application packet requires a completed application, soil classification form, site plan, system design, applicable operation and maintenance plan or contract for alternative systems, and a non-refundable permit fee.
    • The packet lists permit fees of $600 for conventional systems, $900 for alternative systems, and $200 for repair or replacement.

    conventional permit fee: 600 USD (non-refundable) · alternative permit fee: 900 USD (non-refundable) · repair/replacement permit fee: 200 USD (non-refundable)

    “Construction of any portion of the wastewater system may not begin until a construction permit has been issued by CUHD (UAC R317-4).”
  • Agricultural exemptionConditional

    Agricultural structures not intended for human occupancy in Millard County, subject to Utah state construction-code exemptions administered through the county building and planning process.

    • The structure must be used solely in conjunction with agriculture and not for human occupancy.
    • Plumbing, electrical, and mechanical permits may still be required.
    • The exemption does not apply, unless another exemption applies, when the structure is within a city or town and on less than five contiguous acres, or within a county-approved subdivision and on less than two contiguous acres.
    • The acreage restrictions do not apply when the structure is located in whole or in part in an agricultural protection area created under Utah Title 17, Chapter 41.
    • The county application states that work subject to mechanical, electrical, and plumbing code inspections is not exempted.
    • The county application states: If you are installing bathroom facilities, you do NOT qualify for Ag Exemption!
    • A change in use from an exempt agricultural structure requires a new permit and documented structural engineering and testing for compliance with current construction codes.

    city or town acreage threshold: < 5 contiguous acres (Unless located in whole or in part in an agricultural protection area created under Title 17, Chapter 41) · county-approved subdivision acreage threshold: < 2 contiguous acres (Unless located in whole or in part in an agricultural protection area created under Title 17, Chapter 41)

    “Except as provided in Subsection (7)(b), a structure used solely in conjunction with agriculture use, and not for human occupancy, is exempt from the permit requirements of a state construction code.”
  • Driveway accessLimited

    Subdivision and conditional-use development applications in unincorporated Millard County involving access to state highways, county roads, or municipal roads.

    • Subdivision applications must show existing and proposed driveways and roads on the sketch map.
    • Applicants must identify whether a new driveway connection is proposed to a state highway, county road, or municipal road.
    • Conditional-use applications must show ingress and egress points and include applicable Millard County or Utah Department of Transportation permits.
    • Road-right-of-way encroachment work requires a county permit and a minimum $1,000 bond, with the bond remaining in force for three years after completion.

    encroachment bond: >= 1000 USD minimum (may be increased by the County Road Supervisor or authorized representative)

    “Applicant shall execute a bond in the minimum amount of $1000.00, increased by multiples thereof as determined by the County Road Supervisor or his duly authorized representative, to insure faithful performance of the permittee’s obligation. The bond shall remain in force for three years after completion of the work.”
  • Building in a floodplainLimited

    Conditional-use permit site plans in unincorporated Millard County.

    • C-1 conditional-use site plans must identify existing natural features, including floodplains.
    • The source does not establish a countywide floodplain development permit requirement for every type of development.
    “The location and dimension of all existing natural features including, but not limited to, wetlands, drainage ways, floodplains, and water bodies.”

Utah rules that apply here

  • Building permitLimited

    Construction regulated by Utah's State Construction Code statewide, including new construction and specified voluntary alterations, renovations, remodeling, enlargement, rehabilitation, conservation, reconstruction, or changes of use that increase occupancy loads, other demands, or safety risks.

    • A local compliance agency issues the construction permit on the standardized form approved by the Utah Division of Occupational and Professional Licensing.
    • The State Construction Code may contain exemptions and may include provisions applicable statewide or only within a county, city, or town.
    • The state division administers the codes but does not itself issue permits or conduct compliance inspections.

    building permit surcharge: 1 percent (A compliance agency must transmit 85% of the amount collected to the division.)

    “The State Construction Code is the construction codes adopted with any modifications in accordance with this section that the state and each political subdivision of the state shall follow.”
  • Owner-builder exemptionConditional

    A sole owner of property building for the owner's noncommercial, nonpublic use, including certain residential structures and incidental structures.

    • The sole owner may build no more than one residential structure per year and no more than three residential structures per five years on the sole owner's property.
    • The residential use must be noncommercial and nonpublic.
    • A person other than the property owner or a person otherwise exempt under the statute must be licensed if otherwise required to be licensed.
    • The exemption also covers structures incidental to a residential structure, including a shed, carport, or detached garage.
    • Separate exemption conditions apply to persons constructing or renovating a residential building without compensation other than token compensation and under the property owner's direction.
    • This is a contractor-licensure exemption and does not by itself waive building-permit, inspection, or State Construction Code requirements.

    residential structures per year: <= 1 structure (sole owner's noncommercial, nonpublic use) · residential structures per five years: <= 3 structures (sole owner's noncommercial, nonpublic use)

    “the following persons may engage in acts or practices included within the practice of construction trades, subject to the stated circumstances and limitations, without being licensed under this chapter”
    One more reviewed finding on this topic
    • Available (with conditions) — A sole owner acting as an owner-builder for residential construction on the owner's property, concerning exemption from contractor licensure under the Utah Construction Trades Licensing Act; this does not by itself eliminate applicable building-permit, inspection, or code requirements.
      “a sole owner of property engaged in building: (i) no more than one residential structure per year on the sole owner's property and no more than three residential structures per five years on the sole owner's property for the sole owner's noncommercial, nonpublic use”
  • Certificate of occupancyLimited

    Projects in Utah, including Millard County, for which the building permit applicant uses a third-party inspection firm under Utah Code Section 15A-1-105.

    • The applicant must first submit a request for inspection.
    • The applicant must notify the local regulator of the intended third-party inspection firm.
    • The third-party inspection firm must complete the inspection and submit the inspection report to the local regulator.
    • The local regulator must promptly issue the certificate of occupancy or letter of completion after receiving the final inspection report.
    “The local regulator shall issue a certificate of occupancy to the building permit applicant if the third-party inspection firm: (i) completes the inspection; and (ii) submits the inspection report to the local regulator.”
  • Well permitRequired

    Water-well construction and beneficial groundwater use in Millard County under Utah State Engineer and Division of Water Rights rules.

    • A valid water right must be in place before constructing a shallow water well and beneficially using groundwater.
    • A Start Card issued after water-right approval is the permit to construct the well.
    • Water-well drillers are licensed and cannot drill unless permission to drill has been obtained from the State Engineer.
    • The applicable area may be open, restricted, or closed to new water rights; in closed areas, an existing water right and change application may be required.
    • A rush letter may authorize immediate drilling in some circumstances but does not authorize use of the water.
    “A shallow water well owner must have a valid water right to beneficially use groundwater from a shallow water well prior to well construction. Beneficial uses can include domestic, irrigation, and stockwater among others. This requirement is not new and has always been in place since the inception of Utah water right law. See FAQ#3 on the Division's home page for an example of the process to obtain a water right. A Start Card is issued upon approval of the water right, which is essentially the permit to construct the well.”
  • Mandatory utility hookupConditional

    Wastewater drainage for dwellings, buildings, and premises covered by Utah's onsite wastewater rule.

    • Connection to a public sewer is required when available and practicable.
    • If public sewer is unavailable or impracticable, connection must be made to an adequate onsite wastewater system or another wastewater system acceptable under the listed Utah rules.
    • When a dwelling served by an onsite wastewater system connects to a public sewer, the septic tank must be abandoned and disconnected or bypassed unless otherwise approved by the regulatory authority.
    “shall have a connection to a public sewer”
  • Subdividing landRegulated (with conditions)

    Subdivision of land within Utah municipalities under the statewide municipal land-use framework; the municipality is the administering land-use authority.

    • A municipality may enact an ordinance requiring subdivision plats to comply with municipal ordinances and the statutory subdivision part before recording and sale.
    • If the municipality has not enacted a subdivision ordinance, it may regulate subdivisions only to the extent provided in the statutory subdivision part.
    • Subdivision plats are subject to statutory exclusions and exemptions, including Section 10-20-808 and Section 10-20-102.
    “The legislative body of a municipality may enact ordinances requiring that a subdivision plat comply with the provisions of the municipality's ordinances and this part”
  • Campground & park staysLimited

    Temporary RV occupancy in Utah recreational vehicle parks providing temporary living quarters for two or more recreational vehicles.

    • The location must be an RV park as defined by Rule R392-301.
    • The operator must comply with all applicable building, zoning, electrical, health, fire codes and local ordinances.
    • Each RV must satisfy the required data-plate or permanent-label and certification or qualified third-party inspection requirements.
    • Wastewater must comply with the rule, applicable Utah Department of Environmental Quality requirements, local health department regulations, and the local sewer district having jurisdiction.

    minimum number of recreational vehicles: >= 2 vehicles

    “A recreational vehicle or a tiny house may be allowed in a recreational vehicle park only if:”
    One more reviewed finding on this topic
    • Limited — Tiny houses in Utah RV parks; the state source also states that tiny-home permission in a particular area depends on local land-use regulations.
      “A recreational vehicle or a tiny house may be allowed in a recreational vehicle park only if:”
  • county zoning authorityGeneral

    Utah counties may enact land-use controls, including zoning ordinances, for land in unincorporated areas statewide.

    • The authority is subject to Utah Code Section 17-79-101(4) and Section 11-41-103.
    • The statutory grant expressly covers the unincorporated area of a county and a designated mountainous planning district.
    • The quoted provision lists uses, density, open spaces, structures, and buildings among the subjects of permissible land-use controls.
    “Subject to Subsection (4) and Section 11-41-103, to accomplish the purposes of this chapter, a county may enact all ordinances, resolutions, and rules and may enter into other forms of land use controls and development agreements that the county considers necessary or appropriate for the use and development of land within the unincorporated area of the county or a designated mountainous planning district”
  • county building authorityGeneral

    Utah counties may adopt and enforce building regulations and require building permits for construction in unincorporated areas statewide.

    • The general county building-regulation authority applies outside the limits of cities and towns.
    • Local regulations may not conflict with general laws.
    • Under Utah Code Section 17-79-901, erecting, constructing, reconstructing, altering, or changing the use of a building or other structure within a county requires approval of a building permit.
    • A county may not issue a building permit unless the plans fully conform to regulations then in effect.
    • The county permit authority is subject to the State Construction and Fire Codes Act and other statutory limitations.
    “A county may make and enforce within the limits of the county, outside the limits of cities and towns, all local, police, building, and sanitary regulations that are not in conflict with general laws.”

Still unanswered

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

  • Minimum dwelling size — Minimum dwelling size for residential dwellings in unincorporated Millard County.
  • Lot coverage — Maximum lot coverage in unincorporated Millard County.
  • Septic inspection — Inspection requirements for onsite wastewater systems in Millard County within the Central Utah Health District jurisdiction.
  • Off-grid sanitation — Off-grid sanitation systems, including onsite or alternative sanitation, in Millard County.
  • Short-term rentals — Short-term rentals in unincorporated Millard 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 Millard County

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

Closed to new supply

New water supply here generally requires a permit, an offset, or buying an existing right — a household well is not automatic.

Household wellPermit required — restricted

Utah has NO exempt domestic well — you must own a water right to drill any well, including a household well. In an open area you file a new appropriation, but because much of Utah is closed to new appropriation a newcomer typically must PURCHASE an existing water right and file a change application to move it to the new well.

Limit: ~0.45 acre-ft/yr indoor domestic (typical allocation); no statutory exempt-well quantity

Utah Division of Water Rights — FAQ ↗

Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Utah state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Millard County, Utah

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

Millard County scores 36/100 on the Bolthole Index, a marginal county profile. Its strengths: deep seclusion — about 3,541 people within 15 miles and manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 10.1″ of rain a year, in severe drought 27% of years and elevated mid-century heat, water, rain, or wildfire exposure.

Do you need a building permit in Millard County, Utah?

Millard County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Central Utah Public Health Department. 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.

How much does land cost in Millard County, Utah?

Land in Millard County runs about $3,334 per acre, based on the latest county data.

What is the water situation in Millard County?

Millard County gets about 10.1" of rain a year, with severe drought in roughly 27% of years. On water rights, Millard County lies in the Sevier River Basin (closed to new groundwater since 1997) — Large central-Utah basin closed to new groundwater appropriations since 1997 (surface water since 1946); new development must acquire and change existing valid rights..

How remote is Millard County?

A typical private-land location has about 3,541 people within 15 miles and 81,984 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

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

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How Millard compares in Utah

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