A building permit in Hawaii County is issued by the Building Division of the Department of Public Works, the sole building authority for the Big Island, which administers the county's adopted code and runs plan review and inspections. The statewide contractor licence and the separate trade permits run alongside, and the parcel's Lava Flow Hazard Zone governs the structural requirements.
The lava zone is the first thing to establish on a Big Island project. Because the county requires a structural engineer's stamp for any project in Lava Zones 1, 2 or 3, a parcel in those zones commits the design to engineered structure from the outset, and the same high-hazard zones can make property difficult to insure. Away from the highest zones, the process is more routine: EPIC handles online filing, and minor work moves over the counter the same day when the plans are complete.
This guide covers the County of Hawaii, which spans the entire Big Island, from Hilo to Kona. There is no separate city or town building department on the island; the Department of Public Works Building Division is the authority for the whole county.
The lava zone decides the structural path. Because Hawaii County requires a structural engineer's stamp for any project in Lava Zones 1, 2 or 3, establishing the parcel's Lava Flow Hazard Zone is the first step — it determines whether the design must be engineered before it even begins, and it bears on insurability too.
What requires a building permit in Hawaii County?
Hawaii regulates construction through four county building departments over a single statewide baseline. The State Building Code Council sets the Hawaii State Building Code — the International Building and Residential Codes with Hawaii amendments, including the state's own wind-design provisions — and each of the four counties adopts and amends its own edition from that baseline, so every part of the state is covered by an enforced code. There are no sub-county building departments: the county is the building authority for the whole island. In Hawaii County, a permit means the Lava Flow Hazard Zone the parcel sits in — a structural engineer's stamp is required for any project in Zones 1, 2 or 3.
Two things run statewide beneath the county permit. Contractor licensing is a state matter: the Department of Commerce and Consumer Affairs, through its Contractors License Board, issues every contractor licence in Hawaii, and no county issues its own — but a state licence only lets a contractor contract for the work, not begin it, so the county permit is a separate and equally mandatory step. And Hawaii law requires solar water heating in a new single-family home unless an exemption is approved, a request that must be filed with the permit application rather than discovered at inspection.
Typically permit required
- A County of Hawaii building permit from the Department of Public Works Building Division for construction, additions and most alterations
- A structural engineer's stamp for any project in Lava Flow Hazard Zones 1, 2 or 3
- A county building permit from the county that covers the island — the only building authority, since there is no sub-county department
- A State of Hawaii contractor licence from the Department of Commerce and Consumer Affairs Contractors License Board, valid statewide but not a substitute for the county permit
- Separate electrical, plumbing and mechanical permits, each reviewed and inspected independently of the building permit
- Solar water heating in a new single-family dwelling, or an approved exemption filed with the permit application
Often exempt
- Minor work handled over the counter or below the county's permit threshold, where zoning still applies
- A separate county contractor licence — Hawaii licenses contractors only at the state level, so the state licence carries across all four counties
- Minor work the county's adopted code places below the permit threshold, where zoning still applies
How the four counties divide the state
Hawaii has only four county building authorities, each covering entire islands. The City and County of Honolulu covers all of Oahu through its Department of Planning and Permitting; Hawaii County covers the Big Island, Maui County covers Maui, Molokai and Lanai, and Kauai County covers Kauai and Niihau, each through its Department of Public Works. Each county adopts its own edition of the state code with local amendments that reflect its geography and hazards, sets its own fees and timelines, and runs its own plan review and inspections. In Hawaii County, Hawaii County administers the county's adopted code across the whole Big Island through the Building Division of its Department of Public Works, with offices in Hilo and Kona. Its defining rule is volcanic: the United States Geological Survey Lava Flow Hazard Zones run from Zone 1, the most hazardous, to Zone 9, the least, and the county requires a structural engineer's stamp for any project in Lava Zones 1, 2 or 3 — which take in most of lower Puna and parts of Volcano Village. Building in the highest zones also affects insurability. Permits are filed through the county's EPIC online system, and an over-the-counter path clears minor work such as re-roofs and water-heater swaps the same day with complete plans.
Who handles permitting in Hawaii County?
The Big Island is served by the County of Hawaii Department of Public Works Building Division, with offices in Hilo and Kona, which issues building permits and the separate trade permits, administers the county's adopted code, and runs plan review and inspections for the whole island.
| Detail | Information |
|---|---|
| Authority | County of Hawaii Department of Public Works Building Division |
| Office | 101 Pauahi Street, Suite 7, Hilo, HI 96720 (with a Kona office) |
| Phone | (808) 961-8331 |
| Lava zones | A structural engineer's stamp required for any project in Zones 1, 2 or 3 |
| Filing | The county's EPIC online permit system; over-the-counter for minor work |
Permit types
Residential permits
Houses, additions, alterations and decks on the Big Island are permitted through the Building Division under the county's adopted code. A parcel in Lava Zones 1, 2 or 3 requires a structural engineer's stamp; the contractor holds the state licence; the electrical, plumbing and mechanical permits are pulled separately; and a new single-family home carries the solar water-heater requirement.
How Hawaii contractor and trade credentials work
Contractor licensing in Hawaii is centralised at the state level. The Department of Commerce and Consumer Affairs Contractors License Board issues and regulates every licence under the state contractor law — general engineering, general building and specialty classes — and a licence is valid across all four counties; no county issues its own. But the state licence and the county permit are independent: the licence authorises a contractor to contract for the work, and the county permit authorises the work to begin, and both are mandatory. Electrical, plumbing and mechanical trades are state-licensed and permitted separately at the county. In Hawaii County, the county permit is confirmed before construction starts.
Commercial permits
Commercial and multi-family projects are reviewed under the county's adopted code, with engineered structure required in the higher lava zones and Hawaii's wind design throughout. The electrical, plumbing and mechanical permits are pulled and inspected separately, and EPIC handles the online submittal.
Separate trade permits and utility interconnection
In Hawaii the general building permit does not cover the trades. Electrical, plumbing and mechanical work each require a separate county permit, reviewed and inspected independently, and performed by state-licensed trades. A solar or renewable-energy installation also runs through utility interconnection — Hawaiian Electric on most islands, or the Kauai Island Utility Cooperative on Kauai — alongside the county permit. In Hawaii County the electrical, plumbing and mechanical permits are pulled separately through the Department of Public Works.
Hawaii County permit costs and fees
Hawaii County scales its building permit to the project, with the separate trade permits budgeted apart. The cost dimension particular to the Big Island is the engineered structure the higher lava zones require.
| Item | Fee or rule |
|---|---|
| Building permit | Scaled to the project under the county's fee schedule, filed through EPIC |
| Engineer's stamp | Required for any project in Lava Zones 1, 2 or 3 — an added design cost |
| Trade permits | Separate electrical, plumbing and mechanical permits, budgeted apart |
| Contractor licence | A State of Hawaii licence from the Contractors License Board, required in every county |
In the high zones, engineering is a given. Because a project in Lava Zones 1, 2 or 3 requires a structural engineer's stamp, that engineering is part of the Big Island cost from the start on those parcels — and the same zones can complicate insurance, which belongs in the plan too.
Trade permits and who may pull them
Trade work in Hawaii is licensed by the state and permitted separately at the county. Electrical, plumbing and mechanical permits are each pulled, reviewed and inspected on their own, so a project budgets for them apart from the building permit.
Permit required
- General contracting — under a State of Hawaii general contractor licence, with a county building permit before work begins
- Electrical — under a state electrical licence and a separate county electrical permit
- Plumbing — under a state plumbing licence and a separate county plumbing permit
- Mechanical — under a separate county mechanical permit, to the county's adopted code
Typically exempt
- A separate county contractor licence — the state licence carries across all four counties
- Minor work the county's adopted code places below the permit threshold
How to apply for a Hawaii County building permit
One of four: Honolulu for Oahu, Hawaii County for the Big Island, Maui County for Maui, Molokai and Lanai, or Kauai County for Kauai.
Each county adopts its own edition of the state code with local amendments; the edition and amendments govern plan review.
From the Contractors License Board; valid statewide, but not a substitute for the county permit.
Structural and wind-design calculations, foundation design, site plan, drainage, and any coastal, flood or shoreline triggers.
The building permit through the county, plus separate electrical, plumbing and mechanical permits, and the solar water-heater requirement or its exemption.
The building and the separate trade inspections against the permit number, then the certificate of occupancy.
Review, corrections and what actually causes delay
The Big Island delays that recur are lava-zone and completeness delays: a project in Zones 1 to 3 that arrived without engineered structure, or an EPIC submittal that was incomplete. Establishing the lava zone first, bringing the engineer's stamp where required, and filing a complete EPIC package keep the review on track.
Inspections in Hawaii County
County inspections follow the adopted edition — foundation, framing, the separate trade inspections, and final — requested from the county building department against the permit number, with Hawaii's wind-design provisions and, in coastal and flood zones, elevation and flood-opening requirements carrying real weight. The electrical, plumbing and mechanical inspections are called separately from the building inspections. A certificate of occupancy closes the file. On the Big Island the building inspections run through the Department of Public Works against the permit number, and the electrical, plumbing and mechanical inspections are called separately from the building inspections.
Hawaii County permit search and official resources
- County of Hawaii permits (EPIC) — the EPIC online permit system, building permits and the adopted code
- County of Hawaii — the Department of Public Works Building Division and inspection scheduling
- Hawaii Contractors License Board (DCCA) — the statewide general, engineering and specialty contractor licence required in every county
- Hawaii State Building Code Council — the statewide baseline building code the counties adopt and amend
Frequently asked questions
What are the Lava Flow Hazard Zones?
A United States Geological Survey rating of volcanic risk on the Big Island, from Zone 1 (most hazardous) to Zone 9 (least). The zone a parcel sits in shapes both the structural requirements and its insurability.
When do I need a structural engineer's stamp?
For any project in Lava Zones 1, 2 or 3, which take in most of lower Puna and parts of Volcano Village. The county requires the engineer's stamp on those parcels, so the design is engineered from the outset.
How do I file a permit in Hawaii County?
Through the county's EPIC online permit system. Minor work such as re-roofs and water-heater swaps can move over the counter the same day when the plans are complete.
Which building code does the county use?
The county's adopted edition of the Hawaii State Building Code, with Big Island amendments. Confirm the current edition and amendments with the Building Division.
Do I need a state contractor's licence?
Yes. A State of Hawaii licence from the Contractors License Board is required in every county. It authorises a contractor to contract for the work, but the county building permit is a separate and mandatory step.
Are electrical and plumbing part of the building permit?
No. Electrical, plumbing and mechanical work each require a separate county permit, reviewed and inspected independently of the building permit.
Simplify Hawaii County permitting with Alliance Permitting
More than twenty years of working real jurisdictions is what tells you that on the Big Island everything starts with the lava zone: a structural engineer's stamp in Zones 1 to 3, and insurance questions in the highest zones. Our team establishes the zone first, brings the engineered structure where required, files a complete EPIC package, holds the state contractor licence, pulls the separate trade permits, and tracks the submittal to a certificate — corrections included.
Ready to break ground in Hawaii County sooner?
Send us the scope and the parcel. We confirm the review path with the County of Hawaii Department of Public Works Building Division, assemble the submittal, file it, and track it through issuance — corrections included.
More Hawaii permitting guides
More Hawaii permitting guides
This guide is provided by Alliance Permitting for general information about Hawaii County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.