Municipal permitting reference

How building permits work in Honolulu

Honolulu building permits are issued by the Department of Planning & Permitting (DPP) under the Honolulu Building Code — a locally amended version of the 2018 IBC. DPP has faced severe backlogs (residential permits averaging 6–18+ months) that Hawaii's legislature began addressing through Acts 39 and 190 in 2023. Coastal projects require a Special Management Area (SMA) permit; hurricane wind-load engineering is mandatory for all structural work; archaeological review through the State Historic Preservation Division (SHPD) applies across much of O'ahu.

Responsible authority
City & County of Honolulu — Department of Planning & Permitting (DPP)
Indicative planning range
Residential: 6–18+ months. Commercial: 12–36+ months. SMA permit: add 2–6 months. State law (Act 39/190) mandates processing timelines but enforcement is developing.

Planning orientation only; not a municipal service guarantee.

Typical permitting sequence

  1. 1

    Confirm zoning & special areas

    Check the ROH Chapter 21 Zoning Code district (R-3.5, R-5, R-7.5, R-10, A-1, A-2, B-1, B-2) and identify if the parcel is within 300 ft of the shoreline (triggering SMA), in a flood zone, or in a tsunami inundation zone.

  2. 2

    Special Management Area (SMA) permit

    Any development within 300 ft of the shoreline or in other SMA boundaries requires a SMA Permit from DPP's Planning Division before DPP Building will accept the building permit application. SMA minor permits take 2–4 months; SMA major permits take 6+ months.

  3. 3

    SHPD archaeological review

    The State Historic Preservation Division (SHPD) requires archaeological inventory surveys for ground disturbance in areas with significant cultural or historical sensitivity. Coordinate early — SHPD review can add months.

  4. 4

    Submit via ProjectDox (ePlans)

    File the building permit application via DPP's ProjectDox electronic plan submission system with Honolulu Building Code-stamped drawings, Hawaii Energy Code compliance (HERS rating or COMcheck), hurricane wind analysis per ASCE 7 (Hawaii climate), and SMA approval letter.

  5. 5

    DPP plan review

    DPP reviews for zoning, structural, MEP, fire, energy, and hurricane wind compliance. Expect multiple correction cycles; review times of 3–12+ months are common. Acts 39 and 190 established mandatory response timelines but the system is still adjusting.

  6. 6

    Permit issuance

    Permit issued after all reviews pass. Post on site. Electrical and plumbing permits are issued separately.

  7. 7

    Inspections & CO

    Inspections at foundation (flood elevation verified if applicable), framing, MEP rough-in, insulation, and final. Certificate of Occupancy issued when all inspections pass.

Common permit categories

  • • Building Permit (Residential / Commercial)
  • • Electrical
  • • Plumbing
  • • Mechanical
  • • Demolition
  • • Pool / Fence
  • • Sign
  • • Special Management Area (SMA) Permit

Local considerations

  • • Act 39 (2023) requires DPP to approve or issue correction comments within statutory timeframes — if DPP misses deadlines, applicants may escalate; check current DPP guidance.
  • • Condominium projects require AOAO (apartment owners association) approval and CC&R review before DPP will process the permit — coordinate with the association early.
  • • Hurricane wind-load compliance is non-negotiable — all structural plans must include wind analysis per ASCE 7 with Hawaii-specific wind speeds.

Primary municipal reference

Use the municipality's site for authoritative forms, fees, current service standards, codes, portal access, and project-specific requirements.

Open the official Honolulu permit resource

Analyze actual permit activity

Compare this process overview with current municipality-reported filing counts, permit types, maps, neighborhoods, and address history.

View Honolulu, HI permit statistics
How Building Permits Work in Honolulu: Process & Timeline | PropertyLab