Bolthole Index

Maui County, Hawaii

Building permits, zoning and land rules in Maui County, Hawaii

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#3 of 5 in Hawaii

Maui County, Hawaii requires a building permit to construct, alter, move, demolish, repair or use a building or structure, with a conditional process for qualifying agricultural structures1. County zoning applies across Maui, Lanaʻi and Molokaʻi2. The Hawaii Department of Health, rather than Maui County, approves individual wastewater systems3.

At a glance

Building permit
Required for building work; qualifying agricultural structures have a conditional exemption process1
County zoning
Yes; parcel rules vary by island and zoning district24
Septic authority
Hawaii Department of Health Wastewater Branch3
Owner-builder
Conditional exemption for qualifying own-use residential or farm projects5
RV living
Countywide private-land residential use remains unconfirmed; park camping is limited to designated campgrounds6
Tiny homes
Treated as dwelling units under the applicable zoning district7
Agricultural lot size
2-acre county minimum in the agriculture district8
Private wells
State permit required for well construction and pump installation9

Who to call

Building permits

County of Maui Building Permit Section (Public Works, Development Services Administration)

Building permit applications, inspections and certificates of occupancy for Maui County; most applications and inspection requests are filed online through MAPPS Customer Self-Service

200 S. High St., Kalana O Maui Bldg, Wailuku, HI 96793

Online permits →

Planning & zoning

Maui County Planning and Permitting Section

Zoning administration, land-use permitting, community plan questions, subdivision and Short-Term Rental Home applications for Maui County

808-270-8230

2145 Kaohu Street, Suite 102, Wailuku, HI 96793

Septic permits

Hawaii Department of Health, Wastewater Branch – Maui Office

Individual wastewater system (septic, aerobic treatment, composting/incinerator toilet) permits for Maui County; the state, not the county, is the septic permitting authority

(808) 984-8232

54 High Street, Room 300, Wailuku, Hawaii 96793

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

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Do you need a building permit in Maui County, Hawaii?

Yes. Maui County requires a building permit for construction, alteration, moving, demolition, repair and use of buildings or structures1. Applications submitted on or after October 28, 2023 must comply with the county's adopted building-code package10. Depending on the work and location, several county and state agencies may review an application before approval; fees follow the annual budget ordinance, and an unfinished project needs a new permit after the issued permit expires in five years1. Qualifying nonresidential agricultural structures have a conditional exemption: the exemption does not apply to structures used as dwellings or lodging units, the owner must file a written declaration through MAPPS for each structure, and work cannot begin until the county accepts it and verifies floodplain compliance11. Required work must remain accessible for inspection, and construction cannot pass an inspection point without approval12. A certificate of occupancy is required before using covered buildings or changing their occupancy, although listed exemptions include certain one- and two-family dwellings and utility occupancies13.

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

The County of Maui Building Permit Section in Public Works' Development Services Administration handles building applications, inspections and certificates of occupancy; its office is in Wailuku and its online portal is MAPPS Customer Self-Service14. Maui County publishes inspection requests, approving-agency review and permit duration as parts of its building-permit process15. The Planning and Permitting Section handles zoning administration, land-use permits, subdivisions and Short-Term Rental Home applications from its Kaohu Street office16. Start with Planning when the question is what the parcel allows, then use the Building Permit Section for construction review. Short-Term Rental Home permits are limited by Community Plan Region, and a new application requires a processed Land Use Designation Form17. Permitted construction can require foundation, framing, energy-code and final inspections, and covered work must stay exposed until approval12.

Does Maui County have zoning?

Yes. Maui County has adopted separate digital zoning maps for Maui, Lanaʻi and Molokaʻi, but the maps show approximate boundaries and final confirmation comes from the Planning Department2. Allowed uses, setbacks and other development standards depend on the parcel and zoning district4. Agricultural lots in the county agriculture district have a two-acre minimum8. Required yards differ by district: in the agricultural district the front yard is 25 feet and side and rear yards are 15 feet18, while the RU-0.5 rural district uses 25 feet and 15 feet and the RU-1 district uses 35 feet and 20 feet19. Residential R-1, R-2 and R-3 lots need at least 6,000, 7,500 and 10,000 square feet respectively20. Land near the shoreline on Maui island is subject to a separate shoreline setback of at least 40 feet, and 200 feet where no erosion hazard line is mapped21. Effective July 8, 2026, qualifying residentially zoned lots may have up to two accessory dwellings in addition to a primary residence, subject to zoning, building, fire, parking, water, wastewater and emergency-access requirements22. Those accessory dwellings are for long-term housing and cannot be used as short-term or transient rentals22.

How do septic and sewer rules work in Maui County?

The Hawaii Department of Health Wastewater Branch, not Maui County, approves individual wastewater systems; sewer-served properties instead deal with the relevant county department or private provider3. A licensed civil engineer must submit plans for a new or modified individual system, and the system cannot be used until the state gives written authorization23. The engineer must submit the final inspection report and as-built plan within 30 days after construction24. Only about 6.2% of mapped Maui County soils lack severe limitations for a conventional drain field, so wastewater feasibility belongs near the start of site planning25. A property abutting a right-of-way with a public wastewater system must connect at the owner's expense within 180 days after official notice26. Where sewer is unavailable or inaccessible, an alternative system still requires state authorization, and a new cesspool is not a lawful substitute26.

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

Maui County's rule for long-term RV occupancy on private land could not be confirmed, so ask the Planning and Permitting Section about the parcel and proposed use before treating owner permission as zoning approval16. Hawaii law requires authorization for both parking and habitation on private property and restricts nighttime vehicle habitation on public property, subject to listed exceptions27. County-park camping is allowed only at designated campgrounds, and vehicle or RV camping in Molokaʻi District parks requires a permit628. Maui County treats a tiny home as a dwelling unit subject to the applicable zoning district; building codes may apply, and a trailer-mounted unit may need motor-vehicle registration7. Factory-built housing may serve as permanent housing in the Lahaina Burn Zone under updated procedures and certification requirements, but that district-specific rule does not establish countywide manufactured-home occupancy29. A countywide minimum dwelling floor area could not be confirmed; ask Planning for the parcel's standard16.

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

  1. Ask the Planning and Permitting Section to confirm the parcel's zoning, legal use and development standards162.
  2. Confirm whether access is from a county road or state highway: work on a county-road driveway needs a Maui County permit, while state-highway right-of-way work needs state approval3031.
  3. Plan sewer or an individual wastewater system before fixing the house layout2623.
  4. If acting as owner-builder, file the disclosure and follow the supervision, licensed-trade and recordkeeping conditions for qualifying own-use residential or farm work5.
  5. Apply through the county process and obtain flood development approval before work in a special flood hazard area1532.
  6. Schedule inspections, keep work exposed and obtain any required certificate of occupancy before use1213.

What should you check before buying land in Maui County?

Confirm zoning and legal-lot status before closing because Maui County regulates subdivision and reconsolidation, with additional public review for many agricultural subdivisions33. Verify the driveway route: constructing, reconstructing, removing or repairing a driveway on a county roadway requires a county permit, while access in a state-highway right-of-way follows the state process3031. Check sewer availability and individual-system feasibility early because a sewer connection can become mandatory after notice and most mapped soils have severe conventional drain-field limitations2625. For private water, Hawaii requires permits to construct a well and install pumping equipment, with separate water-use permission possible in designated groundwater management areas9. Check flood status before grading or storing materials because development in a special flood hazard area requires county review32. If rental income matters, confirm the use before purchase because Short-Term Rental Home permits are limited by Community Plan Region17.

Watch-outs

  • An agricultural designation alone does not create a general permit exemption; Maui County has a conditional process for qualifying agricultural structures1.
  • Maui County's digital zoning maps show approximate boundaries, so obtain final parcel zoning confirmation from the Planning Department2.
  • Composting and incinerator toilets treat toilet waste only; shower and kitchen wastewater still needs approved treatment and disposal34.

Sources

  1. Building Permit | Maui County, HI - Official Website, quoted and re-checked
  2. Digital Zoning Map Update Project, quoted and re-checked
  3. Wastewater Branch, quoted and re-checked
  4. Digital Zoning Map Update Project, quoted and re-checked
  5. HRS §444-2.5 Owner-builder exemption, quoted and re-checked
  6. mauicounty.gov, quoted and re-checked
  7. Planning Department Frequently Asked Questions, quoted and re-checked
  8. Maui County FAQs — Real Property Tax Agricultural Use Assessment, quoted and re-checked
  9. Applications & Forms, quoted and re-checked
  10. mauicounty.gov, quoted and re-checked
  11. DSA Building Permit – Agricultural Exemption (HRS 46-88), quoted and re-checked
  12. Maui County Building Code Amendments, quoted and re-checked
  13. Maui County Building Code Amendments, quoted and re-checked
  14. County of Maui Building Permit Section (Public Works, Development Services Administration) (mauicounty.gov)
  15. Building Permit, quoted and re-checked
  16. Maui County Planning and Permitting Section (mauicounty.gov)
  17. Short Term Rentals, quoted and re-checked
  18. Agricultural District Code Text, quoted and re-checked
  19. Ordinance No. 2583 Establishing Rural Zoning Districts, quoted and re-checked
  20. Chapter 19.08 - Residential Districts, quoted and re-checked
  21. Maui Planning Commission Shoreline Procedure Rules, amended August 25, 2024, quoted and re-checked
  22. County adopts new accessory dwelling rules to expand housing opportunities, quoted and re-checked
  23. health.hawaii.gov, quoted and re-checked
  24. health.hawaii.gov, quoted and re-checked
  25. 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
  26. Ordinance No. 2323 — Wastewater regulations, quoted and re-checked
  27. §291C-112 Certain uses of parked vehicles prohibited between 6:00 p.m. and 6:00 a.m.; definition; exceptions (Hawaii statewide rule), quoted and re-checked
  28. mauicounty.gov, quoted and re-checked
  29. County DPW announces new procedures for factory-built housing in Lahaina Burn Zone, quoted and re-checked
  30. DSA Driveway Permit, quoted and re-checked
  31. ROUTINE CONSTRUCTION / EXCAVATION WITHIN A STATE HIGHWAY (Hawaii statewide rule), quoted and re-checked
  32. DPW Flood Development Permit, quoted and re-checked
  33. Subdivision, quoted and re-checked
  34. Individual Wastewater Systems, quoted and re-checked

Written October 9, 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 4 of its neighbors, Maui County has countywide zoning.

RuleMaui CountyKalawao CountyHawaii CountyHonolulu CountyKauai County
Building permitRequiredLimitedRequiredRequiredRequired
County zoningYesYesYesYesYes
Septic permitsHI State Dept. of HealthHI Dept. of HealthHI State Dept. of HealthHI State Dept. of HealthHI State Dept. of Health

County locator

Maui County in Hawaii

56
County map
Maui County highlighted among the Hawaii counties · colored by Index score

How Maui County scores

Seclusion58100% ev.
Self-Sufficiency4962% ev.
Admin Boringness41100% ev.
Durability5193% ev.
Property Autonomy41100% ev.
Carry Cost48100% ev.

Evidence strength: 90%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$999kTypical home
0.2%Property tax
$12,084Land / acre
19.6% of yrsSevere drought
0 / yr (+0)Mid-century 100°F days
1.06×Wildfire change factor
80%Forward climate coverage
$2,121Home insurance / yr
3.4% / yrInsurance growth
0.35%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
97,517People within 30 min
144,085People within 2 hr
67,073Radius comparison (15 mi)
141.4People / sq mi
4.8%Federal land
41.6%Land at 15% slope or less
6.2%Soils rated "not limited" for septic (strict USDA rating)
45,232 acWorkable land screen
42.8%Wooded land

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Answers from the rulebook for Maui County

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

Maui County rules

  • Building permitRequired

    Construction, alteration, moving, demolition, repair, and use of any building or structure within Maui County.

    • The county lists a “Building Permit – Exemption - HRS 46-88” application for an agriculture exemption.
    • Depending on permit scope and property location, several county and State of Hawaii agencies may need to review the application before final approval.
    • A permit expires and is void five years after issuance; if work is unfinished when it expires, a new permit is required.
    • Building-permit and plan-review fees are assessed under the annual budget ordinance.

    permit expiration: 5 years from date of issuance (A new permit shall be obtained if the permit expires before work is completed.)

    “A building permit is required for the construction, alteration, moving, demolition, repair, and use of any building or structure within the county.”
    One more reviewed finding on this topic
    • Required — Construction, alteration, moving, demolition, repair, and use of buildings or structures within Maui County.
      “A building permit is required for the construction, alteration, moving, demolition, repair, and use of any building or structure within the county.”
  • Building code adoptedAdopted (with conditions)

    Building permit applications in Maui County subject to the County of Maui building-related codes.

    • The County began enforcement on October 28, 2023.
    • The adopted package includes Maui County Code Chapter 16.25 administrative and supplemental provisions, Chapter 16.26C with 2018 IBC county amendments, Chapter 16.08B with 2018 IRC state amendments and county amendments TBD, Chapter 16.10 with 2018 IEBC state amendments and county amendments TBD, and Chapter 16.16C with 2018 IECC state and county amendments.
    • Applications submitted on or after October 28, 2023 must comply with the listed codes.
    • Applications submitted before October 28, 2023 are reviewed under the codes enforced when submitted.

    enforcement start date: 2023-10-28

    “On October 28, 2023, the County of Maui will start enforcement of the following building-related codes:”
  • InspectionsRequired

    Construction work performed under a Maui County building permit, including footing/foundation, framing, applicable fire-rated assemblies, energy-code, special, final, and other inspections required by the building code.

    • The building official makes the required inspections upon notification.
    • The permit applicant must keep work accessible and exposed for inspection.
    • The person performing permitted work must notify the building official when work is ready; the official may require requests at least two working days before inspection.
    • Work may not proceed beyond each successive inspection point without approval.
    • A final inspection and approval are required for all buildings and structures when completed and ready for occupancy and use.
    • Reinspection fees may be assessed when work is incomplete, corrections are not made, access is unavailable, approved plans are unavailable, or work deviates from plans; no additional inspection occurs until assessed fees are paid.

    advance inspection request: >= 2 working days (The building official may require this advance notice.) · reinspection fee: set forth in the annual budget ordinance

    “All construction or work for which a permit is required shall be subject to inspection by the building official”
  • Certificate of occupancyRequired

    Buildings, structures, or portions thereof subject to Maui County’s certificate-of-occupancy provision, including changes of occupancy.

    • A building, structure, or portion may not be used or occupied, and a change of occupancy may not be made, until the building official issues a certificate of occupancy.
    • Certificates are not required for work exempted from permits under section 105.2, Group R, Division 3 one- and two-family dwellings, and Group U occupancies.
    • The building official issues the certificate after inspection and a finding of no violations of the applicable code or other enforced laws.
    • A certificate-of-occupancy issuance fee of $50.00 applies under the county’s DSA application page.
    • A temporary certificate may be issued when no substantial hazard will result before completion, for a period set by the building official.
    • A $1,000 fine must be collected before issuance when a required certificate was not obtained before occupancy.

    certificate issuance fee: 50 USD (Applicant is notified when payment is due.) · fine for occupancy before required certificate: 1000 USD (Collected before issuing the certificate.)

    “A Certificate of Occupancy is required for buildings and structures that meet the definition indicated in Maui County Code, Title 16.26B.110.”
  • County-wide zoningPresent (with conditions)

    County zoning across Maui County, including the islands of Maui, Lana`i, and Moloka`i.

    • The County Planning Department has adopted island-specific digital zoning maps.
    • The Maui digital map represents zoning as of March 22, 2022; the Lana`i map overlays the 2020 real-property-tax parcel layer; and the Moloka`i map overlays the 2021 real-property-tax layer.
    • Corrections and recommendations to an adopted digital map must be consistent with each parcel's Community Plan designation.
    “The Planning Department has adopted digital zoning maps for the island of Maui (Ordinance 5363), the island of Lana`i (Ordinance 5113), and the island of Moloka`i (Ordinance 5299).”
  • Local zoningVaries (with conditions)

    Aggregate local-zoning conclusion for Maui County, covering county-administered zoning across Maui, Lanaʻi, and Molokaʻi and parcel-specific zoning districts.

    • The conclusion aggregates local zoning controls across the County's islands and zoning districts; it does not establish one uniform rule for every parcel.
    • The County states that zoning maps are island-specific and that corrections to adopted maps must be consistent with each parcel's Community Plan designation.
    • Applicable use permissions and development standards vary by zoning district and parcel.
    “other goals include researching and verifying zoning for thousands of parcels; correcting inadvertent mapping errors, inconsistencies and alignment issues”
    One more reviewed finding on this topic
    • Present (with conditions) — County zoning under Title 19 on all lands within Maui County, except conservation districts regulated by the State of Hawaii.
      “A. Title 19 is the zoning code for Maui County. It is codified as part of the Maui County Code which has 22 titles Q. Where does Title 19 apply? A. Title 19 applies to all lands within the county except conservation districts regulated by the state.”
  • Zoning districtsPublished (with conditions)

    County of Maui digital zoning districts and zoning maps for Maui, Lana`i, and Moloka`i islands.

    • The Maui digital map represents zoning as of March 22, 2022 and overlays the 2019 Real Property Tax parcel layer.
    • The Lana`i zoning map overlays the 2020 Real Property Tax parcel layer.
    • The Moloka`i zoning map overlays the 2021 Real Property Tax layer.
    • The digital maps depict approximate locations and boundaries and are provided for general reference; final zoning confirmation must be provided by the Planning Department.
    • The Maui map was adopted through Ordinance 5363; the Lana`i map through Ordinance 5113; and the Moloka`i map through Ordinance 5299.
    • The cited page states that Maui Digital Map 2 became law on November 13, 2019 and Maui Digital Zoning Map 3 became law on March 22, 2022.

    Maui digital zoning map layer date: March 22, 2022 · Maui parcel layer date: 2019 · Lana`i parcel layer date: 2020 · Moloka`i parcel layer date: 2021

    “The Planning Department has adopted digital zoning maps for the island of Maui (Ordinance 5363 PDF), the island of Lana`i (Ordinance 5113 PDF), and the island of Moloka`i (Ordinance 5299 PDF). The digital map for the island of Maui represents the zoning as it exists as of March 22, 2022, and overlays the 2019 Real Property Tax parcel layer. For Lana`i, the zoning overlays the 2020 Real Property Tax parcel layer. For Moloka`i, the zoning overlays the 2021 Real Property Tax layer.”
  • Minimum lot sizeDistrict specific (with conditions)

    Residential R-1, R-2, and R-3 zoning districts under Maui County Code section 19.08.040.

    • The applicable minimum depends on the zoning district.
    • Section 19.08.040 identifies minimum lot areas of 6,000 square feet for R-1, 7,500 square feet for R-2, and 10,000 square feet for R-3.
    • Modification of the minimum lot area may be reduced to no less than 4,000 square feet subject to the requirements stated in section 19.08.030, including qualifying affordable-housing design, deed restrictions, and shared-use paths.

    R-1 minimum lot area: 6000 square feet · R-2 minimum lot area: 7500 square feet · R-3 minimum lot area: 10000 square feet

    “Minimum lot area (square feet) | 6,000 | 7,500 | 10,000”
    5 more reviewed findings on this topic
    • Specified — Agricultural lots in the Maui County agriculture district.
      “the Maui County Code does set the minimum lot size for agricultural lots at 2 acres in the agriculture district.”
    • Specified — Lots within the Kihei Research and Technology Park District.
      “Within the R & T Park; the minimum lot area shall be two (2) acres and the minimum lot frontage shall be two hundred fifty (250) feet, except for lots fronting on a cul-de-sac where the minimum frontage requirement is equal to one-third (1/3) the outside circumference of the cul-de-sac bulb.”
    • Specified — Lots within the Kihei Research and Technology Park District.
      “Within the R & T Park; the minimum lot area shall be two (2) acres and the minimum lot frontage shall be two hundred fifty (250) feet, except for lots fronting on a cul-de-sac where the minimum frontage requirement is equal to one-third (1/3) the outside circumference of the cul-de-sac bulb.”
    • Specified — Agricultural lots in the Maui County Agricultural District.
      “the Maui County Code does set the minimum lot size for agricultural lots at 2 acres in the agriculture district.”
    • District specific (with conditions) — Single-family dwellings and accessory structures in the Wailuku Redevelopment Area.
      “The minimum lot size is 4,500 sf and the minimum lot width is be 45 feet.”
  • SetbacksDistrict specific (with conditions)

    Property setbacks for development regulated by Maui County zoning.

    • Required setbacks differ by zoning district.
    • The applicable standards are located in Title 19 of the Maui County Code.
    • This claim does not establish a single countywide setback dimension.
    “The required property setbacks (which are different depending on each zoning district) are covered within Title 19 of the Maui County Code.”
    8 more reviewed findings on this topic
    • Specified — Buildings in Maui County R-1, R-2, and R-3 residential zoning districts.
      “up to and including 15 feet in height [...] Front 15 [...] Side/Rear [...] 6 [...] more than 15 feet in height [...] Front 15 [...] Side/Rear [...] 10”
    • Specified — Uses, facilities, structures, and applicable development in the Maui County RU-0.5 rural zoning district.
      “Minimum yards in the RU-0.5 district: front yard, 25 feet; side and rear yards, 15 feet.”
    • Specified — Uses, facilities, structures, and applicable development in the Maui County RU-1 rural zoning district.
      “Minimum yards in the RU-1 district: front yard, 35 feet; side and rear yards, 20 feet.”
    • District specific (with conditions) — Property setbacks under Maui County Code Title 19; requirements vary by zoning district and require compliance with the applicable district standards.
      “The required property setbacks (which are different depending on each zoning district) are covered within Title 19 of the Maui County Code.”
    • District specific (with conditions) — Structures in Maui County Residential R-1, R-2, and R-3 zoning districts.
      “Setback lines (for any portion of a building up to and including 15 feet in height as measured from the natural or finish grade, whichever is lower) Front (in feet) 15; 18 to any garage or carport Side/Rear (in feet) 6”
    • Specified — Uses, facilities, and structures in the Maui County Agricultural District.
      “Except as otherwise provided in this chapter, the following district standards shall apply for uses, facilities and structures In the agricultural district: [...] Minimum yard setbacks; front yards, twenty-five feet; side and rear yards, fifteen feet;”
    • Specified — Uses, facilities, and structures in the RU-0.5 and RU-1 rural districts.
      “Minimum yards in the RU-0.5 district: front yard, 25 feet; side and rear yards, 15 feet. Minimum yards in the RU-1 district: front yard, 35 feet; side and rear yards, 20 feet.”
    • District specific (with conditions) — All lands within the shoreline area of the Island of Maui, County of Maui, including shoreline/SMA contexts governed by the Maui Planning Commission shoreline rules.
      “For areas where there is no mapped erosion hazard line, the shoreline setback line shall be two hundred feet from the shoreline as mapped by the department, except that:”
  • Lot coverageSpecified

    Multi-family buildings in the Wailuku Redevelopment Area.

    • Maximum lot coverage is 60 percent for buildings up to 30 feet, 50 percent for buildings greater than 30 feet to 45 feet, and 40 percent for buildings greater than 45 feet to 60 feet.
    • Where a conflict exists between the Wailuku Redevelopment Area standard and applicable front, rear, and side yard setback design guidelines for the third and fourth floors, the Wailuku Redevelopment Area Design Guidelines apply.

    maximum lot coverage up to 30 feet: 60 percent (for multi-family buildings) · maximum lot coverage greater than 30 feet to 45 feet: 50 percent (for multi-family buildings) · maximum lot coverage greater than 45 feet to 60 feet: 40 percent (for multi-family buildings)

    “60% | 50% | 40% | For multi-family buildings.”
    2 more reviewed findings on this topic
  • Building heightSpecified

    Buildings in the Kihei Research and Technology Park District.

    • Buildings are limited both by stories and by total height.

    maximum building stories: <= 3 stories · maximum building height: <= 40 feet

    “three (3) stories and shall not exceed forty (40) feet.”
  • Living in an RVLimited

    Vehicle or recreational-vehicle camping in County of Maui parks in the Molokaʻi District.

    • Permit requirements apply.
    • The source addresses County parks in the Molokaʻi District and does not establish a rule for long-term RV occupancy on private land countywide.
    “Permit requirements apply. Call (808) 270-7389.”
  • Camping on your landLimited

    Camping in County of Maui parks and recreational facilities.

    • Camping is permitted only at designated campgrounds.
    • The County FAQ identifies Papalaua Wayside Park in West Maui, One Aliʻi Park and Pāpōhaku Park in Molokaʻi as designated campgrounds.
    • Call (808) 270-7389 for more details.
    “Camping is permitted only at designated campgrounds, including Papalaua Wayside Park in West Maui, One Aliʻi Park and Pāpōhaku Park in Molokaʻi. Call (808) 270-7389 for more details.”
  • Tiny homesLimited

    Tiny homes proposed for occupancy under Maui County zoning regulations.

    • Tiny homes are treated like any other dwelling unit and must follow the rules for the applicable zoning district.
    • Department of Public Works building and residential codes may apply.
    • The Department of Finance Division of Motor Vehicles and Licensing may require registration if the tiny home is on a trailer.
    “For compliance with zoning regulations, tiny homes are treated like any other dwelling unit and follow the same rules for the zoning district. The Department of Public Works administers the building and residential codes, which may also apply, and the Department of Finance’s Division of Motor Vehicles and Licensing may require registration if the tiny home is on a trailer.”
  • Manufactured homesAllowed (with conditions)

    Permanent occupancy of manufactured homes, which Maui County Code identifies as factory-built dwellings, in the Lahaina Burn Zone.

    • The County of Maui Department of Public Works has implemented procedures permitting factory-built housing as permanent housing in the Lahaina Burn Zone.
    • The factory-built structure must follow updated regulations and policies.
    • Where installation or relocation requires electrical work, an electrical permit from the director is required.
    • The manufactured home must bear the manufacturer's certification label verifying compliance with applicable federal construction and safety standards.
    • The manufacturer's electrical installation is acceptable only if the certification is provided and no changes or additions have been made; changes or additions, including utility service connections, are subject to the Maui County Electrical Code.
    • Construction site office trailers may be exempted under section 16.18B.104-4(a)(11).
    “To increase flexibility, the County of Maui Department of Public Works (DPW) Development Services Administration (DSA) has implemented new procedures for factory-built housing in the Lahaina Burn Zone. Factory-built housing – a dwelling or portion of a dwelling that is prefabricated or assembled at a place other than the site where the building will be placed long-term – will now be permitted as permanent housing if the factory-built structure follows updated regulations and policies.”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwellings on qualifying residentially zoned lots throughout Maui County, including Maui, Molokaʻi, and Lānaʻi.

    • Up to two accessory dwellings may be allowed in addition to a primary residence, for a potential total of three residential units on one lot.
    • Eligibility is primarily in Residential and Rural zoning districts; accessory dwellings are typically excluded in Agricultural, Commercial, and Industrial zoning districts.
    • Accessory dwellings are intended for long-term residential housing and may not be used as transient vacation rentals, short-term rentals, or bed-and-breakfast operations.
    • The ordinance's key changes are effective July 8, 2026.
    • Existing zoning, building, fire, and infrastructure requirements continue to apply, including setbacks, height limits, parking standards, water availability, wastewater capacity, and emergency access.
    • County approval depends on adequate infrastructure and compliance with all applicable regulations.

    maximum accessory dwellings on qualifying residentially zoned lot: 2 dwellings (in addition to one primary residence) · effective date of key ordinance changes: 2026-07-08

    “Effective July 8, key changes under the new ordinance include: • Allowing up to two accessory dwellings on qualifying residentially zoned lots countywide. • Expanding eligibility to certain residentially zoned properties within project districts where accessory dwellings were previously not permitted. • Creating a consistent countywide standard for Maui, Molokaʻi and Lānaʻi.”
  • Mandatory utility hookupSewer (with conditions)

    Dwellings, buildings, and properties in Maui County that are used for human occupancy, employment, recreation, or other purposes and abut a street, alley, or right-of-way where a public wastewater system is located or may be located; the county rule also addresses individual lots and new subdivisions.

    • The owner must pay the connection expense.
    • Direct connection to the proper public wastewater system is required within 180 days after official notice.
    • For an existing single-family dwelling at the time the public wastewater system is installed, the director must grant an extension when the estimated connection charge exceeds prevailing estimates for comparable single-family dwellings by 50% or more.
    • To obtain that extension, the owner must file objections before the 180-day period expires; the extension may not exceed five years.
    • If rock, wastewater collection-system depth, or another construction problem makes service impracticable, the owner must install, operate, and maintain a residential pumping station.
    • Where public or private wastewater systems are unavailable or inaccessible, an alternative wastewater treatment system may be constructed only as authorized by the Hawaii State Department of Health and subject to all applicable governmental requirements.
    • A new cesspool is not a lawful alternative: Hawaii DOH rules prohibit use of a cesspool by any new building and prohibit construction of new cesspools after March 21, 2016, except for approvals issued before that effective date.
    • For individual wastewater systems allowed under state rules, typical residential limits include 10,000 square feet of land area per system, no more than 50 single-family lots or dwelling units except for developments with at least one dwelling unit per acre, generally no more than 1,000 gallons per day and five bedrooms per system, and written DOH authorization before use.
    • For a single-family dwelling below the wastewater-line elevation, connection and a pump are required when the property is sold or further developed, living area is increased, or the cesspool or septic tank fails to function properly.

    connection deadline after official notice: 180 days · extension maximum: <= 5 years (The owner must file objections before expiration of the 180-day period.) · connection-charge threshold for mandatory extension: >= 50 percent (Compared with prevailing estimates for connection of single-family dwellings to the same public wastewater-system line.) · new cesspool prohibition effective date: 2016-03-21 (Unless approved for construction before the effective date.)

    “Owners of all dwellings, buildings, or properties used for human occupancy, employment, recreation, or other purposes, and abut on any street, alley, or right-of-way in which there is now located or may in the future be located a public wastewater system, are required at their expense to connect directly with the proper public wastewater system in accordance with the provisions of this article, within one hundred eighty days after date of official notice.”
  • Agricultural exemptionConditional

    Certain non-residential agricultural buildings, structures, and appurtenances in Maui County seeking exemption under Hawaii Revised Statutes section 46-88.

    • The exemption does not apply to structures used as dwellings or lodging units.
    • The owner or occupier must provide a written declaration to the County through MAPPS.
    • No work may commence until the County has accepted the declaration and verified compliance with floodplain management requirements and regulations.
    • A separate exemption declaration must be submitted for each structure.
    • The application is for a non-residential agricultural structure.

    separate exemption declaration: true (required for each structure)

    “HRS 46-88 exempts certain agricultural buildings, structures and appurtenances that are not used as dwellings or lodging units from building permit and building code requirements.”
  • Subdividing landRegulated (with conditions)

    Subdivision or reconsolidation of land within Maui County.

    • The Subdivision Section administers Maui County Code Title 18.
    • A subdivision permit is listed as a supported application for subdivision or consolidation of land.
    • From the date the preliminary map and supplemental materials are deemed complete and satisfactorily received, the County has 45 calendar days to issue preliminary subdivision approval; final subdivision approval is granted upon completion of all requirements.
    • The filing fee for five lots or less is $250 plus $50 per development lot; for six lots or more it is $400 plus $100 per development lot. Where subdivision improvements are required, the construction plan review fee is $200 per lot.

    preliminary subdivision approval period: 45 calendar days (measured from complete and satisfactorily received preliminary map and supplemental materials) · filing fee for 5 lots or less: 250 USD (plus $50 per development lot) · filing fee for 6 lots or more: 400 USD (plus $100 per development lot) · construction plan review fee where improvements are required: 200 USD per lot

    “Subdivision Permit – Subdivision or consolidation of land.”
    2 more reviewed findings on this topic
    • Regulated (with conditions) — Subdivision and consolidation of land, and streets or ways created for subdividing land, in Maui County.
      “The subdivision process is regulated by the County.”
    • Regulated (with conditions) — Subdivision or reconsolidation of land within Maui County.
      “Subdivision Permit – Subdivision or consolidation of land.”
  • Driveway accessRequired

    Construction, reconstruction, removal, or repair of a driveway on a County roadway in Maui County.

    • The requirement applies to any driveway on a County roadway.
    • Online application requires a MAPPS Customer Self Service account, completion of all application steps, and upload of required documents and plans.
    • The applicant is notified when payment is due.
    • The cited page identifies the Civil Construction and Inspection Section within the Department of Public Works, Development Services Administration.

    driveway permit fee for residential driveways: 90 USD · driveway permit fee for commercial driveways: 90 USD

    “A Driveway permit is required to construct, reconstruct, remove or repair any driveway on a County roadway.”
  • Building in a floodplainRequired

    Development within areas subject to flood hazards, including the special flood hazard area, in Maui County.

    • The permit is required for any man-made change to improved or unimproved real estate within the special flood hazard area, including walls, buildings, structures, filling, grading, excavation, mining, drilling, dredging, paving, and storage of equipment or materials.
    • Review is conducted by the Department of Public Works, Engineering Division.
    • The application review fee is assessed under the annual budget ordinance and must be paid before the application is reviewed.
    • An issued flood development permit expires five years from issuance.

    permit expiration: 5 years from issuance · fee payment timing: before application review

    “A flood development permit is required for any development in areas subject to flood hazards.”
  • Short-term rentalsLimited

    Short-Term Rental Homes and other transient vacation rentals pursued through Maui County permitting.

    • Maui County provides applications for bed and breakfast homes, transient vacation rentals, Land Use Commission special use permits, conditional use permits, Short-Term Rental Homes, and zoning and flood confirmation.
    • Short-Term Rental Home permits are limited for each Community Plan Region under Maui County Code subsection 19.65.030.R.
    • A fully processed Land Use Designation Form must be attached to a new Short-Term Rental Home application.
    • The Planning Department is authorized to process most Short-Term Rental Home applications.
    • Permit fees are assessed under the annual budget ordinance.

    permit limitation: per each Community Plan Region (Pursuant to MCC subsection 19.65.030.R.)

    “Permits issued for Short-Term Rental Homes are limited for each Community Plan Region pursuant to subsection 19.65.030.R, Maui County Code (MCC).”
  • Permit feesPublished (with conditions)

    Building and construction permits administered by Maui County Department of Public Works throughout Maui County, with fees varying by declared construction valuation and applicable permit or inspection type.

    • The County states that building permit and plan review fees are assessed under the annual budget ordinance.
    • The fee schedule cited is Appendix B for Fiscal Year July 1, 2025 to June 30, 2026.
    • Permit fees must be paid before permit issuance; the cited building-code schedule provides valuation-based fees.
    • Affordable housing projects built and offered for sale or rental in accordance with Chapter 2.86, Maui County Code, are assessed 50% of the building permit fee.
    • All units in a residential development in which 100% of the units qualify as residential workforce housing units under section 2.96.020 are exempt from the fee.
    • A residential workforce housing unit under section 2.96.020 is assessed 50% of the fee.
    • No fee is charged for County projects and projects funded in whole or in part by the County.
    • For projects on Molokai, pursuant to Resolution 16-155, no fee is charged for permits for projects valued at $200,000 or less; the waiver applies only once per structure.
    • Work started or proceeded with before obtaining a required permit is charged double the scheduled fees or an additional $500, whichever is greater, without relieving compliance or penalty obligations.
    • The building official may authorize a 50% permit-fee refund when requested in writing and no work has been done under an unexpired permit; work includes earthwork under chapter 20.08.
    • The building official may authorize a 50% plan-review-fee refund when requested in writing before plan review begins; no fee refund is authorized if covered work has been initiated.
    • Reinspection fees are $34 per hour, subject to a minimum charge equal to the minimum number of hours required by accepted collective bargaining units, or the total hourly cost to the jurisdiction, whichever is greatest. The reinspection provision does not state a two-hour minimum. The separate miscellaneous-inspection provision states a two-hour minimum and includes exemptions for adult residential care homes and day-care-center licensing inspections.

    permit valuation $1-$500: 30 USD · permit valuation $501-$2,000 base fee: 30 USD (plus $3 for each additional $100 or fraction thereof, to and including $2,000) · permit valuation $2,001-$25,000 base fee: 75 USD (plus $10 for each additional $1,000 or fraction thereof, to and including $25,000) · permit valuation $25,001-$50,000 base fee: 305 USD (plus $9 for each additional $1,000 or fraction thereof, to and including $50,000) · permit valuation $50,001-$100,000 base fee: 530 USD (plus $7 for each additional $1,000 or fraction thereof, to and including $100,000) · permit valuation $100,001-$500,000 base fee: 880 USD (plus $5 for each additional $1,000 or fraction thereof, to and including $500,000) · permit valuation $500,001-$1,000,000 base fee: 2880 USD (plus $6 for each additional $1,000 or fraction thereof, to and including $1,000,000) · permit valuation $1,000,001 and up base fee: 5880 USD (plus $10 for each additional $1,000 or fraction thereof) · reinspection fee: per 34 USD/hour (minimum charge equals the minimum number of hours required by accepted collective bargaining units, or the total hourly cost to the jurisdiction, whichever is greatest) · certificate of occupancy issuance fee: 50 USD · fiscal-year schedule: 2025-07-01 through 2026-06-30

    “APPENDIX B -37- FISCAL YEAR JULY 1, 2025 TO JUNE 30, 2026 DEPARTMENT OF PUBLIC WORKS GENERAL FUND LICENSES & PERMITS: 3240 Fees: Building & Construction Permits Valuation: Permit Fees: 16.25.109 $1 to $500 ............................. $30”
  • Permit processPublished (with conditions)

    Maui County building permit application review, inspection requests, approving-agency review, and permit duration.

    • Inspection requests are submitted online through MAPPS CSS by selecting My Work and then REQUEST INSPECTIONS.
    • Depending on permit scope and property location, several approving agencies may review the application before final approval.
    • A permit that expires before work is completed requires a new permit.
    • The building permit and plan review fees are assessed under the annual budget ordinance.

    permit duration: 5 years from issuance (A new permit is required if the permit expires before work is completed.)

    “Every permit issued by the building official under this code shall expire and be deemed void five years from the date of issuance of the permit. If a permit expires prior to work being completed, a new permit shall be obtained.”

Hawaii rules that apply here

  • Owner-builder exemptionConditional

    Maui County owner or lessee applicants for building permits involving residential or farm buildings or structures, where the owner-builder requirements are met.

    • The exemption is for owners or lessees who build or improve residential or farm buildings or structures for their own use, or for use by their grandparents, parents, siblings, or children, and do not offer them for sale or lease.
    • The owner or lessee must register for the exemption under HRS §444-9.1.
    • The exemption does not apply to electrical or plumbing work requiring a license unless the owner or lessee is licensed for that work under chapter 448E.
    • The owner or lessee must supervise construction, use appropriately licensed subcontractors for work requiring a license, ensure properly licensed electrical and plumbing work, treat unlicensed workers as employees for FICA, withholding, and workers’ compensation purposes, and comply with applicable laws, ordinances, building codes, and zoning regulations.
    • Until completion, specified permit, contract, and payment records must be available for immediate department inspection; after completion, those records must be maintained for three years and made available within seven business days upon request.
    • Sale, lease, or offering for sale or lease within one year after completion is prima facie evidence the work was undertaken for sale or lease, except for property sold or leased to employees, permitted work valued under $10,000, or a board-approved eligible unforeseen hardship.
    • A person found in violation may not use the exemption or register under HRS §444-9.1 for three years; obtaining the licensing exemption more than once in two years creates a rebuttable presumption of violation.
    • The exemption does not apply to agricultural buildings, structures, or appurtenances that do not require a building permit or are exempt from the building code.
    • For a county permit, the applicant must state licenses or the basis for an exemption, certify that an HRS §444-2.5 building is for personal use and not general-public use or occupancy, and sign the required disclosure statement before the county may issue the permit.
    • Maui County’s Building Permits division supplies an Owner Builder Disclosure Statement for residential or farm buildings or structures for the applicant’s own use.

    record retention after completion: 3 years (Records must be available for inspection within seven business days upon department request.) · sale-or-lease presumption period: 1 year after completion (Subject to the statutory employee, under-$10,000 permitted-work, and eligible-unforeseen-hardship exceptions.) · first-offense fine: $5,000 or 40% of county-appraised building value, whichever is greater (Failure to comply with HRS §444-2.5 or the disclosure statement.) · subsequent-offense fine: $10,000 or 50% of county-appraised building value, whichever is greater (Failure to comply with HRS §444-2.5 or the disclosure statement.)

    “The exemption provided in section 444-2.5, Hawaii Revised Statutes, allows you, as the owner or lessee of your property, to act as your own general contractor even though you do not have a license.”
    2 more reviewed findings on this topic
    • Conditional — Owners or lessees performing contractor-regulated construction or improvement of residential or farm buildings or structures on property they own or lease, for their own use or use by grandparents, parents, siblings, or children, including an owner-occupant's primary residence.
      “This chapter shall not apply to owners or lessees of property who build or improve residential or farm buildings or structures on property for their own use, or for use by their grandparents, parents, siblings, or children, and who do not offer the buildings or structures for sale or lease; provided that: (1) To qualify for an exemption under this section, the owner or lessee shall register for the exemption as provided in section 444-9.1;”
    • Conditional — Statewide owner-builder projects where the applicable county requires a building permit, including an owner's primary residence.
      “A homeowner with an “owner-builder” permit is treated as the general contractor for the project and, as such, is responsible for ensuring the project meets county building codes, and complies with the permitting process, including having the project inspected by a county building inspector.”
  • Who permits septicState

    Individual wastewater systems, including septic systems, in Maui County and statewide Hawaii.

    • The Hawaii Department of Health Wastewater Branch states that its jurisdiction does not extend to properties serviced by sewer; wastewater issues on those properties are directed to the relevant county department or private sewer provider.
    “The Wastewater Branch administers the statewide engineering functions relating to water pollution control, municipal and private wastewater treatment works, individual wastewater systems and the Clean Water State Revolving fund.”
    One more reviewed finding on this topic
    • State — Statewide administration of individual wastewater systems, including septic systems, in Hawaii.
      “The Wastewater Branch administers the statewide engineering functions relating to water pollution control, municipal and private wastewater treatment works, individual wastewater systems and the Clean Water State Revolving fund.”
  • Septic permitLimited

    Construction or modification of an individual wastewater system, including septic tanks, statewide.

    • Construction, modification of construction, or modification of use requires approval of the director before work proceeds.
    • Individual wastewater systems are not required under HAR Chapter 11-62 subchapter 5 to obtain permit coverage, but they remain subject to the separate construction-approval process.
    • The application must include an engineer certification and certification that a final inspection report will be submitted.
    • A new individual wastewater system application filing fee is $100; an addition or modification to an approved or existing system is $25.

    new individual wastewater system filing fee: 100 USD · addition or modification filing fee: 25 USD

    “No person shall construct, modify the construction of, or modify the use of a wastewater system without the approval of the director.”
    One more reviewed finding on this topic
    • Required — Construction or modification of an individual wastewater system, including a septic system, serving property in Maui County.
      “The application to construct a new individual wastewater system or to modify an existing individual wastewater system shall be made by the applicant on forms furnished by the director.”
  • Septic inspectionRequired

    New or modified individual wastewater systems, including septic systems, in Maui County.

    • The engineer must furnish a final inspection report within thirty days after construction completion.
    • The report must certify construction according to approved plans and include an as-built plan.
    • The owner must resolve discrepancies from inspections before written approval to use is issued.
    • The director may inspect the system or site before approval and may require advance notice of the engineer’s inspection.

    final inspection report deadline: 30 days after construction completion

    “The engineer furnishes a final inspection report to the director within thirty days after the completion of the construction which provides the following information:”
    One more reviewed finding on this topic
  • Off-grid sanitationAllowed (with conditions)

    Off-grid individual wastewater systems in Maui County, including septic, aerobic, composting-toilet, and incinerator-toilet systems.

    • The Hawaii Department of Health identifies septic tanks, aerobic treatment units, composting toilets, and incinerator toilets as approved IWS treatment equipment.
    • Composting toilets and incinerator toilets treat only toilet waste; shower and kitchen wastewater still requires treatment and disposal.
    • Construction, approval, operation, and inspection requirements under HAR Chapter 11-62 still apply.
    “Approved IWS treatment equipment are: septic tank, aerobic treatment unit, passive aerobic systems that still require a septic tank (i.e., Eljen, Presby), bioreactor garden (i.e., Ridge to Reefs), composting toilets and incinerator toilets. Composting toilets and incinerator toilets only treat toilet waste, shower and kitchen wastewater still requires treatment and disposal.”
  • Well permitRequired

    Construction, modification, or sealing of water, production, exploratory, and monitor wells statewide.

    • The Commission on Water Resource Management administers the well construction permit requirement for water, production, exploratory, and monitor wells.
    • Injection wells instead require a State Department of Health permit.
    • Geothermal wells require a Department of Land and Natural Resources, Engineering Division permit.
    • Temporary test borings and test-boring sealings do not require a permit; permanent test borings for long-term monitoring are treated as monitoring wells and require a Commission permit.
    • Well construction, modification, or sealing work must be performed by a C-57 licensed well driller; pump installation work may be performed by a C-57, C-57a, or A-licensed contractor.

    well driller license: C-57 · pump installer license: C-57, C-57a, or A

    “In the State of Hawaii, work on water wells, production wells, exploratory wells and monitor wells requires a well construction permit from the Commission; work on injection wells requires a permit from the State Department of Health; and work on geothermal wells requires a permit from the Department of Land and Natural Resources, Engineering Division.”
    One more reviewed finding on this topic
    • Required — Construction of wells and installation of pumps or pumping equipment in Maui County.
      “Application for a Well Construction/Pump Installation Permit **WCPI Permit requirement also applies to sealing abandoned wells.”
  • county zoning authorityGeneral

    Hawaii counties' zoning authority over lands outside forest reserve boundaries, including unincorporated county areas.

    • The authority applies to lands not contained within forest reserve boundaries established on January 31, 1957, or as subsequently amended.
    • Zoning must be accomplished within the framework of a long-range, comprehensive general plan.
    • The zoning power must be exercised by ordinance.
    • The statute identifies authority over agricultural, forestry, industrial, trade, business, residential, watercourse, special-restriction, building-location, height, bulk, setback, density, lot-coverage, open-space, lot-size, and use-duration matters.
    • The powers are to be liberally construed in favor of the county, subject to forest and water reserve limitations and the exceptions in HRS §46-4(c), (d), (g), and §46-4.8.
    “The zoning power granted in this section shall be exercised by ordinance, which may relate to:”
    One more reviewed finding on this topic
    • General — Hawaii counties adopting and enforcing zoning ordinances for lands within county jurisdiction, including unincorporated areas, subject to statutory exclusions and planning requirements.
      “The zoning power granted in this section shall be exercised by ordinance, which may relate to:”
  • county building authorityGeneral

    County authority statewide to enact and enforce building-related ordinances, including residential construction permitting and inspection measures, and to adopt, amend, and update county building-code ordinances within each county's jurisdiction.

    • County ordinance authority is subject to general law and may not be inconsistent with, or tend to defeat, a state statute whose text shows an express or implied intent to be exclusive or uniform statewide.
    • Each county must amend, adopt, and update the Hawaii state building codes as they apply within its respective jurisdiction, in accordance with HRS §46-1.5(13), without council approval.
    • Each county must adopt the HRS §107-25 codes and standards as referenced codes and standards for its county building-code ordinance no later than two years after adoption of the Hawaii state building codes.
    • If a county does not amend the Hawaii state building codes within the two-year period, the Hawaii state building codes become applicable as an interim county building code.
    • The statewide codes apply to all construction and include the International Residential Code.

    county adoption deadline after adoption of Hawaii state building codes: 2 years (If the county does not amend the Hawaii state building codes within this period, they become an interim county building code.)

    “The governing body of each county shall amend, adopt, and update the Hawaii state building codes as they apply within their respective jurisdiction, in accordance with section 46-1.5(13), without approval of the council. Each county shall amend and adopt the Hawaii state building codes and standards listed in section 107-25, as the referenced Hawaii state building codes and standards for its respective county building code ordinance, no later than two years after the adoption of the Hawaii state building codes.”

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 or dwelling-unit floor area under Maui County Code Title 19, including areas outside the Wailuku Redevelopment Area.

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 Maui County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Hawaii’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 (issued by right)

No well may be drilled without CWRM permits (HAR 13-168), including inside a designated Ground Water Management Area. But individual domestic use and rain-catchment are EXEMPT from the Water Use Permit even inside a designated area (HRS 174C-48) — a household faces construction permitting, not appropriation permitting.

Limit: CWRM Well Construction + Pump Installation Permit required statewide before drilling

Hawaii CWRM — Well Construction & Pump Installation; HRS 174C-48 ↗
  • Iao (Wailuku) Ground Water Management Arealocalized of county

    The Iao/Wailuku aquifer (central Maui) was designated in 2003 and is allocated near its sustainable yield — new non-domestic permits are hard to obtain — but a single-household well is exempt from the Water Use Permit (HRS 174C-48) and needs only the statewide construction permit.

    Hawaii CWRM — Water Management Areas ↗
  • Molokai Ground Water Management Areapartial of county

    The entire island of Molokai (Maui County) is a CWRM-designated Ground Water Management Area; new non-domestic withdrawals are permit-controlled, but individual domestic users and rain-catchment are exempt (HRS 174C-48).

    Hawaii CWRM — Water Management Areas ↗

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

Living off-grid in Maui County, Hawaii

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

Maui County scores 56/100 on the Bolthole Index, a solid county profile. Watch-outs: a weaker property-autonomy legal backdrop and more administrative friction around building and land use.

Do you need a building permit in Maui County, Hawaii?

Maui County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Hawaii State Department of Health, Wastewater Branch. 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 Maui County?

Living in an RV on your own land in Maui County is limited to specific cases: Statewide rule. Use of an RV or other vehicle for human habitation while parked on a roadway, street, highway, or other public property between 6:00 p.m. and 6:00 a.m., and use while parked on private property without authorization for both parking and habitation. The prohibition applies between 6:00 p.m. and 6:00 a.m. on roadways, streets, highways, and other public property. On private property, authorization of both the owner or occupant for parking the vehicle and its use for human habitation is required. A tiny home is limited to specific cases. Confirm with the county before relying on it.

How much does land cost in Maui County, Hawaii?

Land in Maui County runs about $12,084 per acre, based on the latest county data.

What is the water situation in Maui County?

Water data for Maui County is limited. On water rights, Maui County lies in the Iao (Wailuku) Ground Water Management Area — The Iao/Wailuku aquifer (central Maui) was designated in 2003 and is allocated near its sustainable yield — new non-domestic permits are hard to obtain — but a single-household well is exempt from the Water Use Permit (HRS 174C-48) and needs only the statewide construction permit..

How remote is Maui County?

A representative private-land location has about 97,517 people within a 30-minute drive and 144,085 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Maui compares in Hawaii

Compare side-by-side →See all 5 Hawaii counties ranked →