At a glance
Urban Union (Amelia- Amazon Bldg) is a 422,272-square-foot office building at 501 FAIRVIEW AVE N in Seattle, Washington, built in 2016. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 44.7 kBtu/ft² and 92 tCO₂e of greenhouse-gas emissions. That score is higher than 70% 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 | 90 (band A) |
| Site EUI | 44.7 kBtu/ft² |
| Source EUI | 123.1 kBtu/ft² |
| GHG emissions | 92 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 3,726,275 kWh |
| Natural gas | 3,392 therms |
| Gross floor area | 422,272 sq ft |
| Source record | seattle:50270:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 90 | +1 | 44.7 kBtu/ft² | 92 tCO₂e |
| 2024 | 89 | -2 | 47.0 kBtu/ft² | 137 tCO₂e |
| 2023 | 91 | -2 | 43.3 kBtu/ft² | 100 tCO₂e |
| 2022 | 93 | -1 | 39.6 kBtu/ft² | 96 tCO₂e |
| 2021 | 94 | +1 | 35.5 kBtu/ft² | 75 tCO₂e |
| 2020 | 93 | -4 | 33.4 kBtu/ft² | 70 tCO₂e |
| 2019 | 97 | +3 | 41.6 kBtu/ft² | 100 tCO₂e |
| 2018 | 94 | 50.3 kBtu/ft² | 118 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
- 501 FAIRVIEW AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62334, -122.33457
Within ~1 km
Nearby benchmarked buildings
Office · 1,599,394 sq ft
- Day 1 Tower And Spheres (Amazon)score 93
Office · 1,599,230 sq ft
- Onni South Lake Unionscore 77
Multifamily Housing · 1,546,084 sq ft
- Amazon Nitroscore 94
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- Troy Block (Amazon)score 88
Office · 1,261,155 sq ft
- 1918 Eighth Avescore 83
Office · 824,887 sq ft
See also: most efficient in Seattle · biggest emitters
How does Urban Union (Amelia- Amazon Bldg) compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Urban Union (Amelia- Amazon Bldg)'s ENERGY STAR score of 90 compares with an average of 76 across the 378 that report a score; it scores higher than 70% of them and lower than 27%. Its site EUI of 44.7 kBtu/ft² is roughly in line with 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 0.3 kgCO₂e/ft² is about 56% below the group average of 0.7 kgCO₂e/ft².
At 422,272 sq ft, it is about twice the average floor area of 196,452 sq ft for those buildings. It was built in 2016, 51 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 Urban Union (Amelia- Amazon Bldg)'s energy performance changed over time?
BuildingCensus holds 8 Seattle disclosures for Urban Union (Amelia- Amazon Bldg), covering report years 2018–2025. Its ENERGY STAR score went from 94 in 2018 to 90 in 2025 (-4 points); its best year on file was 2019, at 97. Site EUI moved from 50.3 kBtu/ft² (2018) to 44.7 kBtu/ft² (2025), a 11% decrease. Reported emissions went from 118 tCO₂e to 92 tCO₂e over the same span (down 22%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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. Urban Union (Amelia- Amazon Bldg)'s 44.7 kBtu/ft² across 422,272 sq ft works out to about 18.9 billion Btu (5,532 MWh-equivalent) in 2025. Its source EUI of 123.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,726,275 kWh of electricity and 3,392 therms of natural gas for the year.
Which law requires Urban Union (Amelia- Amazon Bldg) to report its energy use?
Urban Union (Amelia- Amazon 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:50270:2025). 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
- Metropolitan Park I (West) Office Bldg· 413,715 sq ft · EUI 27.8 kBtu/ft²
- Fifth & Yesler Bldg.· 413,264 sq ft · score 55 (C)
- Parkview & Waterside Campus· 404,916 sq ft · EUI 70.5 kBtu/ft²
- Third And Broad Bldg· 396,626 sq ft · score 94 (A)
- Millennium Tower· 390,390 sq ft · score 82 (B)
- Georgetown Squared· 390,295 sq ft · score 74 (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 Urban Union (Amelia- Amazon Bldg)'s energy grade?
Urban Union (Amelia- Amazon Bldg) scores 90 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 Urban Union (Amelia- Amazon Bldg) use?
Its 2025 site energy-use intensity was 44.7 kBtu/ft² (123.1 kBtu/ft² source) across 422,272 sq ft, including 3,726,275 kWh of electricity and 3,392 therms of natural gas.
What are Urban Union (Amelia- Amazon Bldg)'s carbon emissions?
Urban Union (Amelia- Amazon Bldg) reported 92 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is Urban Union (Amelia- Amazon Bldg)?
Urban Union (Amelia- Amazon Bldg) is at 501 FAIRVIEW AVE N, in Seattle, Washington 98109. Its coordinates are 47.62334, -122.33457 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Urban Union (Amelia- Amazon Bldg) and when was it built?
Urban Union (Amelia- Amazon Bldg) has 422,272 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2016 as its year built. It is classed as office.
Is Urban Union (Amelia- Amazon 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, “Urban Union (Amelia- Amazon Bldg), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/urban-union-amelia-amazon-bldg-eaa7553f (data as of October 2, 2026).