Dynasty Tower
Multifamily Housing in Honolulu, HI · 1031 Ala Napunani St, Honolulu
At a glance
Dynasty Tower is a 43,460-square-foot multifamily housing building at 1031 Ala Napunani St, Honolulu in Honolulu, Hawaii, built in 1969. In its 2025 Honolulu benchmarking disclosure it reported a site energy-use intensity of 22.6 kBtu/ft² and 207 tCO₂e of greenhouse-gas emissions.
Ordinance 22-17 (City & County of Honolulu) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 22.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 207 tCO₂e |
| GHG intensity | — |
| Electricity | 288,299 kWh |
| Water use | 3,591 kgal |
| Gross floor area | 43,460 sq ft |
| Source record | honolulu:04QFJ1392260822:2025 |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1031 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 Dynasty Tower 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 22.6 kBtu/ft² is about 20% below the average of 28.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 43,460 sq ft, it is about 73% below the average floor area of 159,294 sq ft for those buildings. It was built in 1969, 10 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 22.6 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. Dynasty Tower's 22.6 kBtu/ft² across 43,460 sq ft works out to about 1 billion Btu (288 MWh-equivalent) in 2025. The disclosure also reports 288,299 kWh of electricity and 3,591 thousand gallons of water for the year.
Which law requires Dynasty Tower to report its energy use?
Dynasty Tower 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:04QFJ1392260822:2025). 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
- Piikoi Plaza· 43,111 sq ft · EUI 24.8 kBtu/ft²
- Hocking Building· 42,428 sq ft · EUI 6.6 kBtu/ft²
- Waialae Place· 42,104 sq ft · EUI 56.9 kBtu/ft²
- Haleiwa Surf· 41,706 sq ft · EUI 12.0 kBtu/ft²
- Parkview· 41,362 sq ft · EUI 24.7 kBtu/ft²
- Scandia Tower· 40,902 sq ft · EUI 31.0 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 Dynasty Tower's energy grade?
Dynasty Tower did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 22.6 kBtu/ft².
How much energy does Dynasty Tower use?
Its 2025 site energy-use intensity was 22.6 kBtu/ft² across 43,460 sq ft, including 288,299 kWh of electricity.
What are Dynasty Tower's carbon emissions?
Dynasty Tower reported 207 tCO₂e of greenhouse-gas emissions for 2025.
Where is Dynasty Tower?
Dynasty Tower is at 1031 Ala Napunani St, Honolulu, in Honolulu, Hawaii.
How big is Dynasty Tower and when was it built?
Dynasty Tower has 43,460 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1969 as its year built. It is classed as multifamily housing.
Is Dynasty Tower 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).
Working with Honolulu building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Dynasty Tower, Honolulu, Hawaii — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/honolulu/dynasty-tower-151d9afd (data as of July 9, 2026).