Island West Apartments
Multifamily Housing in Honolulu, HI · 955 Akepo Ln, Honolulu
At a glance
Island West Apartments is a 29,168-square-foot multifamily housing building at 955 Akepo Ln, Honolulu in Honolulu, Hawaii, built in 1961. In its 2025 Honolulu benchmarking disclosure it reported a site energy-use intensity of 41.1 kBtu/ft² and 239 tCO₂e of greenhouse-gas emissions.
Ordinance 22-17 (City & County of Honolulu) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 41.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 239 tCO₂e |
| GHG intensity | — |
| Electricity | 351,376 kWh |
| Water use | 5,279 kgal |
| Gross floor area | 29,168 sq ft |
| Source record | honolulu:04QFJ1757957887:2025 |
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
- 955 Akepo Ln, 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 Island West Apartments 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 41.1 kBtu/ft² is about 46% above the average of 28.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 29,168 sq ft, it is about 82% below the average floor area of 159,294 sq ft for those buildings. It was built in 1961, 18 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.
What does a site EUI of 41.1 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. Island West Apartments's 41.1 kBtu/ft² across 29,168 sq ft works out to about 1.2 billion Btu (351 MWh-equivalent) in 2025. The disclosure also reports 351,376 kWh of electricity and 5,279 thousand gallons of water for the year.
Which law requires Island West Apartments to report its energy use?
Island West Apartments 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:04QFJ1757957887:2025). 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
- Bellevue Towers· 29,016 sq ft · EUI 15.2 kBtu/ft²
- Pearlridge Sunset· 28,800 sq ft · EUI 56.0 kBtu/ft²
- The Hausten· 28,688 sq ft · EUI 20.8 kBtu/ft²
- 2987 Kalakaua AOAO· 28,600 sq ft · EUI 17.0 kBtu/ft²
- Ilaniwai· 28,440 sq ft · EUI 23.4 kBtu/ft²
- Pulelehua· 27,991 sq ft · EUI 31.5 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 Island West Apartments's energy grade?
Island West Apartments did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 41.1 kBtu/ft².
How much energy does Island West Apartments use?
Its 2025 site energy-use intensity was 41.1 kBtu/ft² across 29,168 sq ft, including 351,376 kWh of electricity.
What are Island West Apartments's carbon emissions?
Island West Apartments reported 239 tCO₂e of greenhouse-gas emissions for 2025.
Where is Island West Apartments?
Island West Apartments is at 955 Akepo Ln, Honolulu, in Honolulu, Hawaii.
How big is Island West Apartments and when was it built?
Island West Apartments has 29,168 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1961 as its year built. It is classed as multifamily housing.
Is Island West Apartments 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, “Island West Apartments, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/island-west-apartments-bd975cfd (data as of July 9, 2026).