Hart Industrial
Manufacturing/Industrial Plant in Honolulu, HI · 429 Waiakamilo Rd, Honolulu
At a glance
Hart Industrial is a 116,552-square-foot manufacturing/industrial plant at 429 Waiakamilo Rd, Honolulu in Honolulu, Hawaii, built in 1970. In its 2025 Honolulu benchmarking disclosure it reported a site energy-use intensity of 21.1 kBtu/ft² and 518 tCO₂e of greenhouse-gas emissions.
Ordinance 22-17 (City & County of Honolulu) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 21.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 518 tCO₂e |
| GHG intensity | — |
| Electricity | 719,331 kWh |
| Water use | 6,335 kgal |
| Gross floor area | 116,552 sq ft |
| Source record | honolulu:04QFJ1638958157:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 21.1 kBtu/ft² | 518 tCO₂e | |
| 2024 | — | 19.8 kBtu/ft² | 487 tCO₂e |
Compliance context
Ordinance 22-17 (City & County of Honolulu)
Honolulu's Ordinance 22-17 requires commercial buildings over 25,000 sq ft on Oʻahu to benchmark annually, with public disclosure of results.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 429 Waiakamilo Rd, Honolulu
- City
- Honolulu
- State
- Hawaii
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Honolulu · biggest emitters
How does Hart Industrial compare with other manufacturing/industrial plant buildings in Honolulu?
The latest disclosures cover 10 manufacturing/industrial plant buildings in Honolulu, out of 799 buildings citywide. Its site EUI of 21.1 kBtu/ft² is about 81% below the average of 111.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 116,552 sq ft, it is about 39% above the average floor area of 84,102 sq ft for those buildings. It was built in 1970, 14 years earlier than the group's average year built (1984). Across all 24 jurisdictions BuildingCensus covers, the 2,372 manufacturing/industrial plant buildings average an ENERGY STAR score of 67 and a site EUI of 126.3 kBtu/ft².
How has Hart Industrial's energy performance changed over time?
BuildingCensus holds 2 Honolulu disclosures for Hart Industrial, covering report years 2024–2025. Site EUI moved from 19.8 kBtu/ft² (2024) to 21.1 kBtu/ft² (2025), an 7% increase. Reported emissions went from 487 tCO₂e to 518 tCO₂e over the same span (up 6%).
What does a site EUI of 21.1 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Hart Industrial's 21.1 kBtu/ft² across 116,552 sq ft works out to about 2.5 billion Btu (721 MWh-equivalent) in 2025. The disclosure also reports 719,331 kWh of electricity and 6,335 thousand gallons of water for the year.
Which law requires Hart Industrial to report its energy use?
Hart Industrial reports under Ordinance 22-17 (City & County of Honolulu), the legal basis of Honolulu's Better Buildings Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record honolulu:04QFJ1638958157:2025). Honolulu's Ordinance 22-17 requires commercial buildings over 25,000 sq ft on Oʻahu to benchmark annually, with public disclosure of results.
More manufacturing/industrial plant buildings in Honolulu
- Komohana Industrial Building C· 82,760 sq ft · EUI 20.7 kBtu/ft²
- Kloeckner Metals-Hon· 63,455 sq ft · EUI 96.2 kBtu/ft²
- Warabeya Usa· 51,740 sq ft · EUI 372.3 kBtu/ft²
- Edward Enterprises, Inc.· 51,223 sq ft · EUI 32.3 kBtu/ft²
- Simplehousing Warehouse Llc· 39,072 sq ft
- Scd Rma Sales Dba Rma Sales· 37,000 sq ft · EUI 18.9 kBtu/ft²
- All Honolulu benchmarked buildings· Ordinance 22-17 (City & County of Honolulu)
- Most efficient large buildings in Honolulu
- Least efficient large buildings in Honolulu
- Biggest emitters in Honolulu
Frequently asked questions
What is Hart Industrial's energy grade?
Hart Industrial did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 21.1 kBtu/ft².
How much energy does Hart Industrial use?
Its 2025 site energy-use intensity was 21.1 kBtu/ft² across 116,552 sq ft, including 719,331 kWh of electricity.
What are Hart Industrial's carbon emissions?
Hart Industrial reported 518 tCO₂e of greenhouse-gas emissions for 2025.
Where is Hart Industrial?
Hart Industrial is at 429 Waiakamilo Rd, Honolulu, in Honolulu, Hawaii.
How big is Hart Industrial and when was it built?
Hart Industrial has 116,552 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1970 as its year built. It is classed as manufacturing/industrial plant.
Is Hart Industrial covered by Ordinance 22-17 (City & County of Honolulu)?
Yes — it appears in the 2025 Better Buildings Benchmarking disclosure, which lists the buildings reporting under Ordinance 22-17 (City & County of Honolulu).
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About this data
Source: Better Buildings Benchmarking (Ordinance 22-17 (City & County of Honolulu)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Hart Industrial, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/hart-industrial-f463b580 (data as of July 9, 2026).