Pearlridge Square
Multifamily Housing in Honolulu, HI · 98-288 Kaonohi St, Aiea
At a glance
Pearlridge Square is a 141,490-square-foot multifamily housing building at 98-288 Kaonohi St, Aiea in Honolulu, Hawaii, built in 1980. In its 2025 Honolulu benchmarking disclosure it reported a site energy-use intensity of 38.2 kBtu/ft² and 808 tCO₂e of greenhouse-gas emissions.
Ordinance 22-17 (City & County of Honolulu) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 38.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 808 tCO₂e |
| GHG intensity | — |
| Electricity | 1,046,220 kWh |
| Natural gas | 18,297 therms |
| Water use | 15,010 kgal |
| Gross floor area | 141,490 sq ft |
| Source record | honolulu:04QFJ0970465472:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 38.2 kBtu/ft² | 808 tCO₂e | |
| 2024 | 100 | +99 | 37.9 kBtu/ft² | 793 tCO₂e |
| 2023 | 1 | 354.1 kBtu/ft² | 3,218 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
- 98-288 Kaonohi St, 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 does Pearlridge Square compare with other multifamily housing buildings in Honolulu?
The latest disclosures cover 378 multifamily housing buildings in Honolulu, out of 799 buildings citywide. Its site EUI of 38.2 kBtu/ft² is about 35% above the average of 28.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 141,490 sq ft, it is about 11% below the average floor area of 159,294 sq ft for those buildings. Its 1980 construction date is close to the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Pearlridge Square's energy performance changed over time?
BuildingCensus holds 3 Honolulu disclosures for Pearlridge Square, covering report years 2023–2025. Its ENERGY STAR score went from 1 in 2023 to 100 in 2024 (+99 points). Site EUI moved from 354.1 kBtu/ft² (2023) to 38.2 kBtu/ft² (2025), a 89% decrease. Reported emissions went from 3,218 tCO₂e to 808 tCO₂e over the same span (down 75%).
What does a site EUI of 38.2 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. Pearlridge Square's 38.2 kBtu/ft² across 141,490 sq ft works out to about 5.4 billion Btu (1,584 MWh-equivalent) in 2025. The disclosure also reports 1,046,220 kWh of electricity, 18,297 therms of natural gas and 15,010 thousand gallons of water for the year.
Which law requires Pearlridge Square to report its energy use?
Pearlridge Square 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:04QFJ0970465472:2025). 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
- Queen Victoria Residences· 141,457 sq ft · EUI 30.7 kBtu/ft²
- The Colony Surf· 140,604 sq ft · EUI 22.9 kBtu/ft²
- Ala Moana Tower· 138,000 sq ft · EUI 35.6 kBtu/ft²
- Four Paddle· 137,398 sq ft · EUI 54.0 kBtu/ft²
- Marina Towers· 136,144 sq ft · EUI 15.4 kBtu/ft²
- Lanikea at Waikiki· 135,496 sq ft · EUI 27.5 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 Pearlridge Square's energy grade?
Pearlridge Square did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 38.2 kBtu/ft².
How much energy does Pearlridge Square use?
Its 2025 site energy-use intensity was 38.2 kBtu/ft² across 141,490 sq ft, including 1,046,220 kWh of electricity and 18,297 therms of natural gas.
What are Pearlridge Square's carbon emissions?
Pearlridge Square reported 808 tCO₂e of greenhouse-gas emissions for 2025.
Where is Pearlridge Square?
Pearlridge Square is at 98-288 Kaonohi St, Aiea, in Honolulu, Hawaii.
How big is Pearlridge Square and when was it built?
Pearlridge Square has 141,490 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1980 as its year built. It is classed as multifamily housing.
Is Pearlridge Square 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, “Pearlridge Square, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/pearlridge-square-51ccb62a (data as of July 9, 2026).