Cosmopolitan
Multifamily Housing in Seattle, WA · 819 VIRGINIA ST · 98101
At a glance
Cosmopolitan is a 299,755-square-foot multifamily housing building at 819 VIRGINIA ST in Seattle, Washington, built in 2006. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 29.7 kBtu/ft² and 315 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 29.7 kBtu/ft² |
| Source EUI | 50.0 kBtu/ft² |
| GHG emissions | 315 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 944,304 kWh |
| Natural gas | 56,957 therms |
| Gross floor area | 299,755 sq ft |
| Source record | seattle:20772:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 29.7 kBtu/ft² | 315 tCO₂e | |
| 2024 | — | 29.2 kBtu/ft² | 315 tCO₂e | |
| 2023 | — | 31.9 kBtu/ft² | 357 tCO₂e | |
| 2022 | — | 38.4 kBtu/ft² | 447 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | 99 | ±0 | 32.5 kBtu/ft² | 355 tCO₂e |
| 2019 | 99 | +7 | 22.3 kBtu/ft² | 113 tCO₂e |
| 2018 | 92 | 24.4 kBtu/ft² | 41 tCO₂e | |
| 2017 | — | 29.9 kBtu/ft² | 52 tCO₂e | |
| 2016 | 63 | +5 | 29.6 kBtu/ft² | 51 tCO₂e |
| 2015 | 58 | 30.7 kBtu/ft² | 53 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
- 819 VIRGINIA ST
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.61610, -122.33576
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Cosmopolitan 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. Its site EUI of 29.7 kBtu/ft² is about 15% below 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 1.1 kgCO₂e/ft² is about 50% above the group average of 0.7 kgCO₂e/ft².
At 299,755 sq ft, it is about 247% above the average floor area of 86,468 sq ft for those buildings. It was built in 2006, 23 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 Cosmopolitan's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Cosmopolitan, covering report years 2015–2025. Its ENERGY STAR score went from 58 in 2015 to 99 in 2020 (+41 points); its best year on file was 2019, at 99. Site EUI moved from 30.7 kBtu/ft² (2015) to 29.7 kBtu/ft² (2025), a 3% decrease. Reported emissions went from 53 tCO₂e to 315 tCO₂e over the same span (up 494%).
What does a site EUI of 29.7 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. Cosmopolitan's 29.7 kBtu/ft² across 299,755 sq ft works out to about 8.9 billion Btu (2,609 MWh-equivalent) in 2025. Its source EUI of 50.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 944,304 kWh of electricity and 56,957 therms of natural gas for the year.
Which law requires Cosmopolitan to report its energy use?
Cosmopolitan 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:20772:2025). 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
- The Overlook At Westridge· 298,714 sq ft · score 75 (B)
- The Martin Apartments· 295,754 sq ft · score 92 (A)
- Uwajimaya Village· 294,707 sq ft · score 80 (B)
- Green Lake Village Apts· 292,376 sq ft · score 66 (C)
- Polaris At Lake City Condos· 292,309 sq ft · score 96 (A)
- Avalon Queen Anne· 290,520 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 Cosmopolitan's energy grade?
Cosmopolitan did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 29.7 kBtu/ft².
How much energy does Cosmopolitan use?
Its 2025 site energy-use intensity was 29.7 kBtu/ft² (50.0 kBtu/ft² source) across 299,755 sq ft, including 944,304 kWh of electricity and 56,957 therms of natural gas.
What are Cosmopolitan's carbon emissions?
Cosmopolitan reported 315 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2025.
Where is Cosmopolitan?
Cosmopolitan is at 819 VIRGINIA ST, in Seattle, Washington 98101. Its coordinates are 47.61610, -122.33576 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Cosmopolitan and when was it built?
Cosmopolitan has 299,755 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2006 as its year built. It is classed as multifamily housing.
Is Cosmopolitan 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, “Cosmopolitan, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/cosmopolitan-f7a21451 (data as of October 2, 2026).