Greenwood Aoao
Multifamily Housing in Honolulu, HI · 1128 Ala Napunani St, Honolulu
At a glance
Greenwood Aoao is a 130,065-square-foot multifamily housing building at 1128 Ala Napunani St, Honolulu in Honolulu, Hawaii, built in 1974. In its 2025 Honolulu benchmarking disclosure it reported a site energy-use intensity of 29.0 kBtu/ft² and 752 tCO₂e of greenhouse-gas emissions.
Ordinance 22-17 (City & County of Honolulu) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 29.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 752 tCO₂e |
| GHG intensity | — |
| Electricity | 1,106,175 kWh |
| Water use | 10,614 kgal |
| Gross floor area | 130,065 sq ft |
| Source record | honolulu:04QFJ1379061106:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 29.0 kBtu/ft² | 752 tCO₂e | |
| 2024 | 100 | ±0 | 21.7 kBtu/ft² | 595 tCO₂e |
| 2023 | 100 | 24.2 kBtu/ft² | 697 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
- 1128 Ala Napunani St, 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 Greenwood Aoao 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 29.0 kBtu/ft² is roughly in line with the average of 28.2 kBtu/ft².
At 130,065 sq ft, it is about 18% below the average floor area of 159,294 sq ft for those buildings. It was built in 1974, 5 years earlier than 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 Greenwood Aoao's energy performance changed over time?
BuildingCensus holds 3 Honolulu disclosures for Greenwood Aoao, covering report years 2023–2025. Its ENERGY STAR score was 100 in both 2023 and 2024. Site EUI moved from 24.2 kBtu/ft² (2023) to 29.0 kBtu/ft² (2025), an 20% increase. Reported emissions went from 697 tCO₂e to 752 tCO₂e over the same span (up 8%).
What does a site EUI of 29.0 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. Greenwood Aoao's 29.0 kBtu/ft² across 130,065 sq ft works out to about 3.8 billion Btu (1,105 MWh-equivalent) in 2025. The disclosure also reports 1,106,175 kWh of electricity and 10,614 thousand gallons of water for the year.
Which law requires Greenwood Aoao to report its energy use?
Greenwood Aoao 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:04QFJ1379061106:2025). 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
- Dowsett Point· 128,691 sq ft · EUI 22.8 kBtu/ft²
- Hale Kulanui· 128,600 sq ft · EUI 17.8 kBtu/ft²
- Foster Tower· 127,996 sq ft · EUI 47.1 kBtu/ft²
- Windward Harbour· 126,000 sq ft · EUI 19.2 kBtu/ft²
- The Town House· 124,458 sq ft · EUI 31.9 kBtu/ft²
- The Palms Inc AOAO· 123,231 sq ft · EUI 30.5 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 Greenwood Aoao's energy grade?
Greenwood Aoao did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 29.0 kBtu/ft².
How much energy does Greenwood Aoao use?
Its 2025 site energy-use intensity was 29.0 kBtu/ft² across 130,065 sq ft, including 1,106,175 kWh of electricity.
What are Greenwood Aoao's carbon emissions?
Greenwood Aoao reported 752 tCO₂e of greenhouse-gas emissions for 2025.
Where is Greenwood Aoao?
Greenwood Aoao is at 1128 Ala Napunani St, Honolulu, in Honolulu, Hawaii.
How big is Greenwood Aoao and when was it built?
Greenwood Aoao has 130,065 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1974 as its year built. It is classed as multifamily housing.
Is Greenwood Aoao 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, “Greenwood Aoao, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/greenwood-aoao-01d0080f (data as of July 9, 2026).