The Broadway On Broadway Bldg
Multifamily Housing in Seattle, WA · 1620 BROADWAY · 98122
At a glance
The Broadway On Broadway Bldg is a 184,980-square-foot multifamily housing building at 1620 BROADWAY in Seattle, Washington, built in 2010. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 98 out of 100 (grade A), a site energy-use intensity of 33.6 kBtu/ft² and 75 tCO₂e of greenhouse-gas emissions. That score is higher than 75% of the 1,652 scored multifamily housing buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 98 (band A) |
| Site EUI | 33.6 kBtu/ft² |
| Source EUI | 80.1 kBtu/ft² |
| GHG emissions | 75 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 985,186 kWh |
| Natural gas | 10,530 therms |
| Gross floor area | 184,980 sq ft |
| Source record | seattle:42067:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 98 | +1 | 33.6 kBtu/ft² | 75 tCO₂e |
| 2024 | 97 | +2 | 36.9 kBtu/ft² | 94 tCO₂e |
| 2023 | 95 | -1 | 39.2 kBtu/ft² | 96 tCO₂e |
| 2022 | 96 | -2 | 39.4 kBtu/ft² | 102 tCO₂e |
| 2021 | 98 | +2 | 36.0 kBtu/ft² | 96 tCO₂e |
| 2020 | 96 | +20 | 39.4 kBtu/ft² | 114 tCO₂e |
| 2019 | 76 | ±0 | 53.7 kBtu/ft² | 158 tCO₂e |
| 2018 | 76 | -14 | 53.2 kBtu/ft² | 158 tCO₂e |
| 2017 | 90 | ±0 | 55.7 kBtu/ft² | 167 tCO₂e |
| 2016 | 90 | ±0 | 52.7 kBtu/ft² | 149 tCO₂e |
| 2015 | 90 | 49.1 kBtu/ft² | 133 tCO₂e |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 1620 BROADWAY
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.61591, -122.32039
Within ~1 km
Nearby benchmarked buildings
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- 1101 Madison Towerscore 70
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- The Danforthscore 100
Multifamily Housing · 592,484 sq ft
- Joulescore 99
Multifamily Housing · 436,301 sq ft
Medical Office · 422,503 sq ft
See also: most efficient in Seattle · biggest emitters
How does The Broadway On Broadway Bldg compare with other multifamily housing buildings in Seattle?
The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. The Broadway On Broadway Bldg's ENERGY STAR score of 98 compares with an average of 83 across the 1,652 that report a score; it scores higher than 75% of them and lower than 20%. Its site EUI of 33.6 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.6 kgCO₂e/ft² is about 19% below the group average of 0.7 kgCO₂e/ft².
At 184,980 sq ft, it is about twice the average floor area of 86,468 sq ft for those buildings. It was built in 2010, 27 years later than the group's average year built (1983). 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 The Broadway On Broadway Bldg's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for The Broadway On Broadway Bldg, covering report years 2015–2025. Its ENERGY STAR score went from 90 in 2015 to 98 in 2025 (+8 points); its best year on file was 2021, at 98. Site EUI moved from 49.1 kBtu/ft² (2015) to 33.6 kBtu/ft² (2025), a 32% decrease. Reported emissions went from 133 tCO₂e to 75 tCO₂e over the same span (down 43%).
What does an ENERGY STAR score of 98 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Seattle, 69% of scored buildings are at 75 or above.
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. The Broadway On Broadway Bldg's 33.6 kBtu/ft² across 184,980 sq ft works out to about 6.2 billion Btu (1,822 MWh-equivalent) in 2025. Its source EUI of 80.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 985,186 kWh of electricity and 10,530 therms of natural gas for the year.
Which law requires The Broadway On Broadway Bldg to report its energy use?
The Broadway On Broadway Bldg reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record seattle:42067:2025). Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.
More multifamily housing buildings in Seattle
- East Union Apartments· 184,974 sq ft · score 21 (D)
- Guinevere· 183,524 sq ft · score 97 (A)
- Sanford Hildebrandt Towers I· 183,392 sq ft · score 87 (A)
- Views At Madison Vista Bldgs I & Ii· 183,379 sq ft · score 98 (A)
- Origin Apartments· 183,212 sq ft · score 99 (A)
- Canal Station Condominium· 182,494 sq ft · score 98 (A)
- Multifamily Housing buildings in Seattle· 1,971 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
- Most efficient large buildings in Seattle
- Least efficient large buildings in Seattle
- Biggest emitters in Seattle
Frequently asked questions
What is The Broadway On Broadway Bldg's energy grade?
The Broadway On Broadway Bldg scores 98 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Broadway On Broadway Bldg use?
Its 2025 site energy-use intensity was 33.6 kBtu/ft² (80.1 kBtu/ft² source) across 184,980 sq ft, including 985,186 kWh of electricity and 10,530 therms of natural gas.
What are The Broadway On Broadway Bldg's carbon emissions?
The Broadway On Broadway Bldg reported 75 tCO₂e of greenhouse-gas emissions (0.6 kgCO₂e/ft²) for 2025.
Where is The Broadway On Broadway Bldg?
The Broadway On Broadway Bldg is at 1620 BROADWAY, in Seattle, Washington 98122. Its coordinates are 47.61591, -122.32039 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Broadway On Broadway Bldg and when was it built?
The Broadway On Broadway Bldg has 184,980 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2010 as its year built. It is classed as multifamily housing.
Is The Broadway On Broadway Bldg covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2025 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Seattle Energy Benchmarking Ordinance (SMC 22.920).
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About this data
Source: Building Energy Benchmarking (Seattle Energy Benchmarking Ordinance (SMC 22.920)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “The Broadway On Broadway Bldg, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/the-broadway-on-broadway-bldg-e01232ca (data as of October 2, 2026).