Pearl One
Multifamily Housing in Honolulu, HI · 98-500 Koauka Loop, Aiea
At a glance
Pearl One is a 250,898-square-foot multifamily housing building at 98-500 Koauka Loop, Aiea in Honolulu, Hawaii, built in 1975. It is listed in the 2025 Better Buildings Benchmarking disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2023, when it scored 100 out of 100 on ENERGY STAR with a site EUI of 18.7 kBtu/ft².
No energy data reported for 2025
Pearl One appears in the 2025 Better Buildings Benchmarking disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 250,898 sq ft · Built 1975
Source record honolulu:04QFJ1040265200:2025
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | — | — | — | |
| 2023 | 100 | 18.7 kBtu/ft² | 1,299 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.
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Location
- Address
- 98-500 Koauka Loop, Aiea
- 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 has Pearl One's energy performance changed over time?
BuildingCensus holds 3 Honolulu disclosures for Pearl One, covering report years 2023–2025. Only one of those years carries energy figures.
Which law requires Pearl One to report its energy use?
Pearl One 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:04QFJ1040265200:2025). Honolulu's Ordinance 22-17 requires commercial buildings over 25,000 sq ft on Oʻahu to benchmark annually, with public disclosure of results.
More multifamily housing buildings in Honolulu
- Hale Mahana· 249,431 sq ft · EUI 29.0 kBtu/ft²
- Pohulani Elderly· 243,615 sq ft · EUI 39.8 kBtu/ft²
- Pearl Two· 239,257 sq ft · EUI 24.5 kBtu/ft²
- Liliuokalani Gardens· 237,500 sq ft · EUI 40.7 kBtu/ft²
- Harbour Ridge· 237,194 sq ft · EUI 31.8 kBtu/ft²
- Kauhale Kaka'ako· 234,378 sq ft · EUI 25.1 kBtu/ft²
- Multifamily Housing buildings in Honolulu· 378 benchmarked
- 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 Pearl One's energy grade?
Pearl One has no grade: it did not report energy data for 2025. The 2025 Better Buildings Benchmarking disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is Pearl One?
Pearl One is at 98-500 Koauka Loop, Aiea, in Honolulu, Hawaii.
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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, “Pearl One, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/pearl-one-2cbf7b88 (data as of July 9, 2026).