At a glance
1000 2nd Avenue Building is a 589,921-square-foot office building at 1000 2ND AVE in Seattle, Washington, built in 1986. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 33.6 kBtu/ft² and 94 tCO₂e of greenhouse-gas emissions. That score is higher than 51% of the 378 scored office buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 84 (band B) |
| Site EUI | 33.6 kBtu/ft² |
| Source EUI | 93.9 kBtu/ft² |
| GHG emissions | 94 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 4,819,505 kWh |
| Gross floor area | 589,921 sq ft |
| Source record | seattle:346:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 84 | -3 | 33.6 kBtu/ft² | 94 tCO₂e |
| 2024 | 87 | ±0 | 33.4 kBtu/ft² | 95 tCO₂e |
| 2023 | 87 | -1 | 33.3 kBtu/ft² | 95 tCO₂e |
| 2022 | 88 | ±0 | 34.7 kBtu/ft² | 99 tCO₂e |
| 2021 | 88 | +1 | 34.7 kBtu/ft² | 99 tCO₂e |
| 2020 | 87 | +1 | 34.8 kBtu/ft² | 101 tCO₂e |
| 2019 | 86 | +3 | 40.4 kBtu/ft² | 113 tCO₂e |
| 2018 | 83 | +13 | 42.7 kBtu/ft² | 118 tCO₂e |
| 2017 | 70 | -14 | 50.7 kBtu/ft² | 141 tCO₂e |
| 2016 | 84 | +2 | 51.2 kBtu/ft² | 143 tCO₂e |
| 2015 | 82 | 52.9 kBtu/ft² | 152 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
- 1000 2ND AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.60567, -122.33511
Within ~1 km
Nearby benchmarked buildings
- Columbia Centerscore 90
Office · 1,952,220 sq ft
- Seattle Convention Centerscore —
Convention Center · 1,842,925 sq ft
- Two Union Squarescore 96
Office · 1,605,578 sq ft
- Russell Investments Centerscore 92
Office · 1,592,914 sq ft
- Us Bank Centerscore 87
Office · 1,536,606 sq ft
Office · 1,527,817 sq ft
See also: most efficient in Seattle · biggest emitters
How does 1000 2nd Avenue Building compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. 1000 2nd Avenue Building's ENERGY STAR score of 84 compares with an average of 76 across the 378 that report a score; it scores higher than 51% of them and lower than 46%. Its site EUI of 33.6 kBtu/ft² is about 25% below the average of 44.8 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 73% below the group average of 0.7 kgCO₂e/ft².
At 589,921 sq ft, it is about 200% above the average floor area of 196,452 sq ft for those buildings. It was built in 1986, 21 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 1000 2nd Avenue Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for 1000 2nd Avenue Building, covering report years 2015–2025. Its ENERGY STAR score went from 82 in 2015 to 84 in 2025 (+2 points); its best year on file was 2021, at 88. Site EUI moved from 52.9 kBtu/ft² (2015) to 33.6 kBtu/ft² (2025), a 36% decrease. Reported emissions went from 152 tCO₂e to 94 tCO₂e over the same span (down 38%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 falls in band B — above median (70–84). 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. 1000 2nd Avenue Building's 33.6 kBtu/ft² across 589,921 sq ft works out to about 19.8 billion Btu (5,809 MWh-equivalent) in 2025. Its source EUI of 93.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,819,505 kWh of electricity for the year.
Which law requires 1000 2nd Avenue Building to report its energy use?
1000 2nd Avenue Building 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:346:2025). 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 office buildings in Seattle
- City Place Iv (Ruby/Dawson)· 571,329 sq ft · score 92 (A)
- Fhcrc - Arnold Bldg· 560,516 sq ft · score 69 (C)
- Amazon Block 18· 556,007 sq ft · score 96 (A)
- Puget Sound Plaza· 552,176 sq ft · score 66 (C)
- Fourth & Blanchard Building· 543,876 sq ft · score 78 (B)
- One Convention Place· 538,933 sq ft · score 84 (B)
- Office buildings in Seattle· 497 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 1000 2nd Avenue Building's energy grade?
1000 2nd Avenue Building scores 84 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1000 2nd Avenue Building use?
Its 2025 site energy-use intensity was 33.6 kBtu/ft² (93.9 kBtu/ft² source) across 589,921 sq ft, including 4,819,505 kWh of electricity.
What are 1000 2nd Avenue Building's carbon emissions?
1000 2nd Avenue Building reported 94 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.
Where is 1000 2nd Avenue Building?
1000 2nd Avenue Building is at 1000 2ND AVE, in Seattle, Washington 98104. Its coordinates are 47.60567, -122.33511 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1000 2nd Avenue Building and when was it built?
1000 2nd Avenue Building has 589,921 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is 1000 2nd Avenue Building 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, “1000 2nd Avenue Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/1000-2nd-avenue-building-c805e81e (data as of October 2, 2026).