At a glance
Nw Work Lofts - Campus is a 217,800-square-foot other building at 100 ELLIOTT AVE W in Seattle, Washington, built in 1928. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 41.6 kBtu/ft² and 294 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 41.6 kBtu/ft² |
| Source EUI | 74.3 kBtu/ft² |
| GHG emissions | 294 tCO₂e |
| GHG intensity | 1.4 kgCO₂e/ft² |
| Electricity | 1,103,749 kWh |
| Natural gas | 51,863 therms |
| Gross floor area | 217,800 sq ft |
| Source record | seattle:829:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 41.6 kBtu/ft² | 294 tCO₂e | |
| 2024 | — | 44.7 kBtu/ft² | 340 tCO₂e | |
| 2023 | — | 43.7 kBtu/ft² | 344 tCO₂e | |
| 2022 | — | 51.2 kBtu/ft² | 428 tCO₂e | |
| 2021 | — | 47.2 kBtu/ft² | 381 tCO₂e | |
| 2020 | — | 44.3 kBtu/ft² | 342 tCO₂e | |
| 2019 | — | 50.4 kBtu/ft² | 370 tCO₂e | |
| 2018 | — | 48.6 kBtu/ft² | 351 tCO₂e | |
| 2017 | — | 52.2 kBtu/ft² | 383 tCO₂e | |
| 2016 | — | 51.8 kBtu/ft² | 401 tCO₂e | |
| 2015 | 84 | 49.8 kBtu/ft² | 359 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
- 100 ELLIOTT AVE W
- City
- Seattle
- State
- Washington
- ZIP
- 98119
- Coordinates
- 47.61915, -122.35871
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
- Armory - Seattle Centerscore —
Other · 396,085 sq ft
- 2601 ELLIOTT AVEscore —
Office · 350,310 sq ft
Multifamily Housing · 308,940 sq ft
See also: most efficient in Seattle · biggest emitters
How does Nw Work Lofts - Campus compare with other other buildings in Seattle?
The latest disclosures cover 45 other buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 41.6 kBtu/ft² is about 30% below the average of 59.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.4 kgCO₂e/ft² is about 25% above the group average of 1.1 kgCO₂e/ft².
At 217,800 sq ft, it is about 291% above the average floor area of 55,708 sq ft for those buildings. It was built in 1928, 24 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 1,327 other buildings average an ENERGY STAR score of 60 and a site EUI of 63.3 kBtu/ft².
How has Nw Work Lofts - Campus's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Nw Work Lofts - Campus, covering report years 2015–2025. Site EUI moved from 49.8 kBtu/ft² (2015) to 41.6 kBtu/ft² (2025), a 16% decrease. Reported emissions went from 359 tCO₂e to 294 tCO₂e over the same span (down 18%).
What does a site EUI of 41.6 kBtu/ft² mean?
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. Nw Work Lofts - Campus's 41.6 kBtu/ft² across 217,800 sq ft works out to about 9.1 billion Btu (2,655 MWh-equivalent) in 2025. Its source EUI of 74.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,103,749 kWh of electricity and 51,863 therms of natural gas for the year.
Which law requires Nw Work Lofts - Campus to report its energy use?
Nw Work Lofts - Campus 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:829:2025). 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 other buildings in Seattle
- Seaboard Building Condominium· 111,137 sq ft · EUI 64.0 kBtu/ft²
- Wsecu Plaza- Seattle· 97,512 sq ft · EUI 24.2 kBtu/ft²
- Nordic Cold Storage Company· 83,400 sq ft · EUI 1.2 kBtu/ft²
- Kcts 9· 66,240 sq ft · EUI 43.8 kBtu/ft²
- Bagley Wright Theater (Rep) - Seattle Center· 65,127 sq ft · EUI 75.5 kBtu/ft²
- MERCER ARENA - SEATTLE CENTER· 60,696 sq ft · EUI 2.6 kBtu/ft²
- Other buildings in Seattle· 45 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 Nw Work Lofts - Campus's energy grade?
Nw Work Lofts - Campus did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 41.6 kBtu/ft².
How much energy does Nw Work Lofts - Campus use?
Its 2025 site energy-use intensity was 41.6 kBtu/ft² (74.3 kBtu/ft² source) across 217,800 sq ft, including 1,103,749 kWh of electricity and 51,863 therms of natural gas.
What are Nw Work Lofts - Campus's carbon emissions?
Nw Work Lofts - Campus reported 294 tCO₂e of greenhouse-gas emissions (1.4 kgCO₂e/ft²) for 2025.
Where is Nw Work Lofts - Campus?
Nw Work Lofts - Campus is at 100 ELLIOTT AVE W, in Seattle, Washington 98119. Its coordinates are 47.61915, -122.35871 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Nw Work Lofts - Campus and when was it built?
Nw Work Lofts - Campus has 217,800 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1928 as its year built. It is classed as other.
Is Nw Work Lofts - Campus 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, “Nw Work Lofts - Campus, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/nw-work-lofts-campus-66209d58 (data as of October 2, 2026).