Sound Transit
Non-Refrigerated Warehouse in Seattle, WA · 920 N 137TH ST · 98133
At a glance
Sound Transit is a 52,311-square-foot non-refrigerated warehouse at 920 N 137TH ST in Seattle, Washington, built in 1960. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 51.4 kBtu/ft² and 113 tCO₂e of greenhouse-gas emissions. That score is higher than 60% of the 117 scored non-refrigerated warehouse buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 73 (band B) |
| Site EUI | 51.4 kBtu/ft² |
| Source EUI | 74.0 kBtu/ft² |
| GHG emissions | 113 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 174,573 kWh |
| Natural gas | 20,753 therms |
| Gross floor area | 52,311 sq ft |
| Source record | seattle:392:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 73 | -18 | 51.4 kBtu/ft² | 113 tCO₂e |
| 2024 | 91 | 22.5 kBtu/ft² | 37 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | 98 | +4 | 8.2 kBtu/ft² | 21 tCO₂e |
| 2019 | 94 | -2 | 14.2 kBtu/ft² | 37 tCO₂e |
| 2018 | 96 | -2 | 11.7 kBtu/ft² | 30 tCO₂e |
| 2017 | 98 | +2 | 15.5 kBtu/ft² | 41 tCO₂e |
| 2016 | 96 | +3 | 18.2 kBtu/ft² | 49 tCO₂e |
| 2015 | 93 | 21.8 kBtu/ft² | 56 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
- 920 N 137TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98133
- Coordinates
- 47.72912, -122.34677
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Sound Transit compare with other non-refrigerated warehouse buildings in Seattle?
The latest disclosures cover 164 non-refrigerated warehouse buildings in Seattle, out of 3,871 buildings citywide. Sound Transit's ENERGY STAR score of 73 compares with an average of 58 across the 117 that report a score; it scores higher than 60% of them and lower than 37%. Its site EUI of 51.4 kBtu/ft² is about 69% above the average of 30.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about 142% above the group average of 0.9 kgCO₂e/ft².
At 52,311 sq ft, it is about 11% below the average floor area of 58,727 sq ft for those buildings. Its 1960 construction date is close to the group's average year built (1960). Across all 24 jurisdictions BuildingCensus covers, the 4,723 non-refrigerated warehouse buildings average an ENERGY STAR score of 66 and a site EUI of 26.0 kBtu/ft².
How has Sound Transit's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Sound Transit, covering report years 2015–2025. Its ENERGY STAR score went from 93 in 2015 to 73 in 2025 (-20 points); its best year on file was 2017, at 98. Site EUI moved from 21.8 kBtu/ft² (2015) to 51.4 kBtu/ft² (2025), an 136% increase. Reported emissions went from 56 tCO₂e to 113 tCO₂e over the same span (up 104%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 points below 75, the threshold for ENERGY STAR certification. 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. Sound Transit's 51.4 kBtu/ft² across 52,311 sq ft works out to about 2.7 billion Btu (788 MWh-equivalent) in 2025. Its source EUI of 74.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 174,573 kWh of electricity and 20,753 therms of natural gas for the year.
Which law requires Sound Transit to report its energy use?
Sound Transit 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:392:2025). 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 non-refrigerated warehouse buildings in Seattle
- South Lander Business Park· 51,664 sq ft · EUI 25.8 kBtu/ft²
- A O SMITH CORP (includes #24845)- DEMOLISHED· 51,050 sq ft · score 14 (D)
- Terreno 2nd Ave· 50,832 sq ft · score 18 (D)
- Seattle City Light Roy Street Warehouse· 50,292 sq ft · EUI 2.7 kBtu/ft²
- Tri-North Department Stores· 48,890 sq ft · score 84 (B)
- OLD PIPE BUILDING· 48,280 sq ft
- Non-Refrigerated Warehouse buildings in Seattle· 164 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 Sound Transit's energy grade?
Sound Transit scores 73 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 Sound Transit use?
Its 2025 site energy-use intensity was 51.4 kBtu/ft² (74.0 kBtu/ft² source) across 52,311 sq ft, including 174,573 kWh of electricity and 20,753 therms of natural gas.
What are Sound Transit's carbon emissions?
Sound Transit reported 113 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2025.
Where is Sound Transit?
Sound Transit is at 920 N 137TH ST, in Seattle, Washington 98133. Its coordinates are 47.72912, -122.34677 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Sound Transit and when was it built?
Sound Transit has 52,311 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1960 as its year built. It is classed as non-refrigerated warehouse.
Is Sound Transit 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, “Sound Transit, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/sound-transit-e8fb8858 (data as of October 2, 2026).