Bay Vista Residential Tower
Multifamily Housing in Seattle, WA · 2821 2ND AVE · 98121
At a glance
Bay Vista Residential Tower is a 167,941-square-foot multifamily housing building at 2821 2ND AVE in Seattle, Washington, built in 1982. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 17.5 kBtu/ft² and 28 tCO₂e of greenhouse-gas emissions. That score is higher than 88% 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 | 100 (band A) |
| Site EUI | 17.5 kBtu/ft² |
| Source EUI | 45.3 kBtu/ft² |
| GHG emissions | 28 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 625,771 kWh |
| Natural gas | 2,939 therms |
| Gross floor area | 167,941 sq ft |
| Source record | seattle:19708:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 17.5 kBtu/ft² | 28 tCO₂e |
| 2024 | 100 | ±0 | 17.6 kBtu/ft² | 27 tCO₂e |
| 2023 | 100 | ±0 | 18.3 kBtu/ft² | 30 tCO₂e |
| 2022 | 100 | 19.5 kBtu/ft² | 29 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | 75 | -25 | 33.2 kBtu/ft² | 37 tCO₂e |
| 2019 | 100 | ±0 | 17.0 kBtu/ft² | 25 tCO₂e |
| 2018 | 100 | ±0 | 17.0 kBtu/ft² | 25 tCO₂e |
| 2017 | 100 | ±0 | 18.4 kBtu/ft² | 28 tCO₂e |
| 2016 | 100 | ±0 | 17.3 kBtu/ft² | 27 tCO₂e |
| 2015 | 100 | 17.2 kBtu/ft² | 26 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 2821 2ND AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98121
- Coordinates
- 47.61706, -122.35141
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Bay Vista Residential Tower 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. Bay Vista Residential Tower's ENERGY STAR score of 100 compares with an average of 83 across the 1,652 that report a score; it scores higher than 88% of them. Its site EUI of 17.5 kBtu/ft² is about half of 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 0.2 kgCO₂e/ft² is about 71% below the group average of 0.7 kgCO₂e/ft².
At 167,941 sq ft, it is about twice the average floor area of 86,468 sq ft for those buildings. Its 1982 construction date is close to 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 Bay Vista Residential Tower's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Bay Vista Residential Tower, covering report years 2015–2025. Its ENERGY STAR score was 100 in both 2015 and 2025. Site EUI moved from 17.2 kBtu/ft² (2015) to 17.5 kBtu/ft² (2025), an 2% increase. Reported emissions went from 26 tCO₂e to 28 tCO₂e over the same span (up 9%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. Bay Vista Residential Tower's 17.5 kBtu/ft² across 167,941 sq ft works out to about 2.9 billion Btu (861 MWh-equivalent) in 2025. Its source EUI of 45.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 625,771 kWh of electricity and 2,939 therms of natural gas for the year.
Which law requires Bay Vista Residential Tower to report its energy use?
Bay Vista Residential Tower 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:19708:2025). 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
- O2 Apartments· 167,344 sq ft · score 93 (A)
- Veridian Cove Condominium· 166,858 sq ft · score 76 (B)
- Victoria Park Senior Apartments· 165,914 sq ft · score 100 (A)
- Executive Estates (Bldgs A, B, C, D)· 165,694 sq ft · score 79 (B)
- Eastlake 2851· 165,325 sq ft · score 100 (A)
- Ballard Yards· 165,146 sq ft · score 100 (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 Bay Vista Residential Tower's energy grade?
Bay Vista Residential Tower scores 100 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 Bay Vista Residential Tower use?
Its 2025 site energy-use intensity was 17.5 kBtu/ft² (45.3 kBtu/ft² source) across 167,941 sq ft, including 625,771 kWh of electricity and 2,939 therms of natural gas.
What are Bay Vista Residential Tower's carbon emissions?
Bay Vista Residential Tower reported 28 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.
Where is Bay Vista Residential Tower?
Bay Vista Residential Tower is at 2821 2ND AVE, in Seattle, Washington 98121. Its coordinates are 47.61706, -122.35141 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Bay Vista Residential Tower and when was it built?
Bay Vista Residential Tower has 167,941 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1982 as its year built. It is classed as multifamily housing.
Is Bay Vista Residential Tower 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, “Bay Vista Residential Tower, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/bay-vista-residential-tower-f2b4c3cf (data as of October 2, 2026).