Wiliwili Vistas

How does Wiliwili Vistas 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 24.1 kBtu/ft² is about 15% below the average of 28.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 64,000 sq ft, it is about 60% below the average floor area of 159,294 sq ft for those buildings. It was built in 1991, 12 years later 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 24.1 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. Wiliwili Vistas's 24.1 kBtu/ft² across 64,000 sq ft works out to about 1.5 billion Btu (452 MWh-equivalent) in 2025. The disclosure also reports 451,958 kWh of electricity and 3,362 thousand gallons of water for the year.

Which law requires Wiliwili Vistas to report its energy use?

Wiliwili Vistas 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:04QFJ2132154729:2025). Honolulu's Ordinance 22-17 requires commercial buildings over 25,000 sq ft on Oʻahu to benchmark annually, with public disclosure of results.