At a glance
AC Honolulu is a 55,886-square-foot hotel at 1103 Bishop St, Honolulu in Honolulu, Hawaii, built in 1972. In its 2025 Honolulu benchmarking disclosure it reported a site energy-use intensity of 63.4 kBtu/ft² and 523 tCO₂e of greenhouse-gas emissions.
Ordinance 22-17 (City & County of Honolulu) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 63.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 523 tCO₂e |
| GHG intensity | — |
| Electricity | 672,398 kWh |
| Natural gas | 12,462 therms |
| Water use | 1,922 kgal |
| Gross floor area | 55,886 sq ft |
| Source record | honolulu:04QFJ1825356816:2025 |
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
- 1103 Bishop 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 AC Honolulu compare with other hotel buildings in Honolulu?
The latest disclosures cover 60 hotel buildings in Honolulu, out of 799 buildings citywide. Its site EUI of 63.4 kBtu/ft² is roughly in line with the average of 67.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 55,886 sq ft, it is about 86% below the average floor area of 394,099 sq ft for those buildings. It was built in 1972, 7 years earlier than the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
What does a site EUI of 63.4 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. AC Honolulu's 63.4 kBtu/ft² across 55,886 sq ft works out to about 3.5 billion Btu (1,038 MWh-equivalent) in 2025. The disclosure also reports 672,398 kWh of electricity, 12,462 therms of natural gas and 1,922 thousand gallons of water for the year.
Which law requires AC Honolulu to report its energy use?
AC Honolulu 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:04QFJ1825356816:2025). Honolulu's Ordinance 22-17 requires commercial buildings over 25,000 sq ft on Oʻahu to benchmark annually, with public disclosure of results.
More hotel buildings in Honolulu
- Waikiki Grand Hotel· 54,218 sq ft · EUI 88.2 kBtu/ft²
- Diamond Head Beach Hotel· 49,477 sq ft · EUI 25.0 kBtu/ft²
- Oasis Hotel Waikiki· 45,037 sq ft
- Coconut Waikiki Hotel· 39,300 sq ft · EUI 58.6 kBtu/ft²
- Renew· 31,052 sq ft · EUI 72.3 kBtu/ft²
- Hotel buildings in Honolulu· 60 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 AC Honolulu's energy grade?
AC Honolulu did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 63.4 kBtu/ft².
How much energy does AC Honolulu use?
Its 2025 site energy-use intensity was 63.4 kBtu/ft² across 55,886 sq ft, including 672,398 kWh of electricity and 12,462 therms of natural gas.
What are AC Honolulu's carbon emissions?
AC Honolulu reported 523 tCO₂e of greenhouse-gas emissions for 2025.
Where is AC Honolulu?
AC Honolulu is at 1103 Bishop St, Honolulu, in Honolulu, Hawaii.
How big is AC Honolulu and when was it built?
AC Honolulu has 55,886 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1972 as its year built. It is classed as hotel.
Is AC Honolulu 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, “AC Honolulu, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/ac-honolulu-8afaa6e6 (data as of July 9, 2026).