At a glance
101 Elliott Ave W (Former Pi Bldg) is a 208,210-square-foot office building at 101 ELLIOTT AVE W in Seattle, Washington, built in 1986. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 54.7 kBtu/ft² and 158 tCO₂e of greenhouse-gas emissions. That score is higher than 60% 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 | 87 (band A) |
| Site EUI | 54.7 kBtu/ft² |
| Source EUI | 105.9 kBtu/ft² |
| GHG emissions | 158 tCO₂e |
| GHG intensity | 1.5 kgCO₂e/ft² |
| Electricity | 842,789 kWh |
| Natural gas | 27,989 therms |
| Gross floor area | 208,210 sq ft |
| Source record | seattle:707:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 87 | -8 | 54.7 kBtu/ft² | 158 tCO₂e |
| 2024 | 95 | -4 | 33.2 kBtu/ft² | 16 tCO₂e |
| 2023 | 99 | +1 | 16.1 kBtu/ft² | 12 tCO₂e |
| 2022 | 98 | 19.7 kBtu/ft² | 15 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | 88 | +2 | 52.8 kBtu/ft² | 152 tCO₂e |
| 2019 | 86 | -3 | 59.4 kBtu/ft² | 149 tCO₂e |
| 2018 | 89 | +3 | 52.5 kBtu/ft² | 115 tCO₂e |
| 2017 | 86 | -9 | 51.1 kBtu/ft² | 106 tCO₂e |
| 2016 | 95 | ±0 | 50.1 kBtu/ft² | 112 tCO₂e |
| 2015 | 95 | 49.6 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
- 101 ELLIOTT AVE W
- City
- Seattle
- State
- Washington
- ZIP
- 98119
- Coordinates
- 47.61896, -122.35937
Within ~1 km
Nearby benchmarked buildings
- Climate Pledge Arenascore —
Indoor Arena · 932,000 sq ft
- Olympus Aptsscore 97
Multifamily Housing · 590,869 sq ft
- Third And Broad Bldgscore 94
Office · 396,626 sq ft
- 2601 ELLIOTT AVEscore —
Office · 350,310 sq ft
Multifamily Housing · 308,940 sq ft
- Expo Apartmentsscore 97
Multifamily Housing · 301,831 sq ft
See also: most efficient in Seattle · biggest emitters
How does 101 Elliott Ave W (Former Pi Bldg) compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. 101 Elliott Ave W (Former Pi Bldg)'s ENERGY STAR score of 87 compares with an average of 76 across the 378 that report a score; it scores higher than 60% of them and lower than 37%. Its site EUI of 54.7 kBtu/ft² is about 22% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.5 kgCO₂e/ft² is about twice the group average of 0.7 kgCO₂e/ft².
At 208,210 sq ft, it is roughly in line with 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 101 Elliott Ave W (Former Pi Bldg)'s energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for 101 Elliott Ave W (Former Pi Bldg), covering report years 2015–2025. Its ENERGY STAR score went from 95 in 2015 to 87 in 2025 (-8 points); its best year on file was 2023, at 99. Site EUI moved from 49.6 kBtu/ft² (2015) to 54.7 kBtu/ft² (2025), an 10% increase. Reported emissions went from 133 tCO₂e to 158 tCO₂e over the same span (up 19%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. 101 Elliott Ave W (Former Pi Bldg)'s 54.7 kBtu/ft² across 208,210 sq ft works out to about 11.4 billion Btu (3,338 MWh-equivalent) in 2025. Its source EUI of 105.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 842,789 kWh of electricity and 27,989 therms of natural gas for the year.
Which law requires 101 Elliott Ave W (Former Pi Bldg) to report its energy use?
101 Elliott Ave W (Former Pi 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:707:2025). 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
- Stone 34· 206,126 sq ft · score 88 (A)
- Tower Bldg, 1809 7TH AVE· 204,790 sq ft · score 82 (B)
- 83 S King Street· 204,504 sq ft · score 86 (A)
- Lakeview At Fremont· 202,623 sq ft · score 93 (A)
- Home Plate Center Bldg A· 202,428 sq ft · score 76 (B)
- 744 N 34th St· 202,081 sq ft · score 65 (C)
- 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 101 Elliott Ave W (Former Pi Bldg)'s energy grade?
101 Elliott Ave W (Former Pi Bldg) scores 87 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 101 Elliott Ave W (Former Pi Bldg) use?
Its 2025 site energy-use intensity was 54.7 kBtu/ft² (105.9 kBtu/ft² source) across 208,210 sq ft, including 842,789 kWh of electricity and 27,989 therms of natural gas.
What are 101 Elliott Ave W (Former Pi Bldg)'s carbon emissions?
101 Elliott Ave W (Former Pi Bldg) reported 158 tCO₂e of greenhouse-gas emissions (1.5 kgCO₂e/ft²) for 2025.
Where is 101 Elliott Ave W (Former Pi Bldg)?
101 Elliott Ave W (Former Pi Bldg) is at 101 ELLIOTT AVE W, in Seattle, Washington 98119. Its coordinates are 47.61896, -122.35937 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 101 Elliott Ave W (Former Pi Bldg) and when was it built?
101 Elliott Ave W (Former Pi Bldg) has 208,210 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 101 Elliott Ave W (Former Pi 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, “101 Elliott Ave W (Former Pi Bldg), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/101-elliott-ave-w-former-pi-bldg-2db90c52 (data as of October 2, 2026).