At a glance
Railspur Hotel (Formerly Westland Building-Dshs) is a 73,260-square-foot office building at 100 S KING ST in Seattle, Washington, built in 1907. 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 47.3 kBtu/ft² and 18 tCO₂e of greenhouse-gas emissions. That score is higher than 29% 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 | 73 (band B) |
| Site EUI | 47.3 kBtu/ft² |
| Source EUI | 132.3 kBtu/ft² |
| GHG emissions | 18 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 884,628 kWh |
| Gross floor area | 73,260 sq ft |
| Source record | seattle:611:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 73 | -27 | 47.3 kBtu/ft² | 18 tCO₂e |
| 2024 | 100 | ±0 | 10.5 kBtu/ft² | 4 tCO₂e |
| 2023 | 100 | 3.9 kBtu/ft² | 2 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 S KING ST
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.59856, -122.33379
Within ~1 km
Nearby benchmarked buildings
- Columbia Centerscore 90
Office · 1,952,220 sq ft
- Centurylink Field-Stadiumscore —
Stadium (Open) · 1,913,640 sq ft
- Seattle Municipal Towerscore 86
Office · 1,354,987 sq ft
- 999 Third Avescore 88
Office · 1,323,055 sq ft
- Harbor Steps Ne Sitescore 81
Multifamily Housing · 1,256,335 sq ft
Office · 1,249,055 sq ft
See also: most efficient in Seattle · biggest emitters
How does Railspur Hotel (Formerly Westland Building-Dshs) compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Railspur Hotel (Formerly Westland Building-Dshs)'s ENERGY STAR score of 73 compares with an average of 76 across the 378 that report a score; it scores higher than 29% of them and lower than 68%. Its site EUI of 47.3 kBtu/ft² is roughly in line with the average of 44.8 kBtu/ft². Its emissions intensity of 0.3 kgCO₂e/ft² is about 61% below the group average of 0.7 kgCO₂e/ft².
At 73,260 sq ft, it is about 63% below the average floor area of 196,452 sq ft for those buildings. It was built in 1907, 58 years earlier 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 Railspur Hotel (Formerly Westland Building-Dshs)'s energy performance changed over time?
BuildingCensus holds 3 Seattle disclosures for Railspur Hotel (Formerly Westland Building-Dshs), covering report years 2023–2025. Its ENERGY STAR score went from 100 in 2023 to 73 in 2025 (-27 points); its best year on file was 2023, at 100. Site EUI moved from 3.9 kBtu/ft² (2023) to 47.3 kBtu/ft² (2025), an 1113% increase. Reported emissions went from 2 tCO₂e to 18 tCO₂e over the same span (up 1067%).
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. Railspur Hotel (Formerly Westland Building-Dshs)'s 47.3 kBtu/ft² across 73,260 sq ft works out to about 3.5 billion Btu (1,016 MWh-equivalent) in 2025. Its source EUI of 132.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 884,628 kWh of electricity for the year.
Which law requires Railspur Hotel (Formerly Westland Building-Dshs) to report its energy use?
Railspur Hotel (Formerly Westland Building-Dshs) 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:611:2025). 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
- Jefferson Building· 72,613 sq ft · score 79 (B)
- Rda Building· 72,000 sq ft
- Pier 56· 71,919 sq ft · EUI 98.3 kBtu/ft²
- Watershed Office Building· 70,913 sq ft · score 75 (B)
- The Weller Building· 70,332 sq ft
- Canal Pl Office Park· 70,296 sq ft · EUI 44.0 kBtu/ft²
- 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 Railspur Hotel (Formerly Westland Building-Dshs)'s energy grade?
Railspur Hotel (Formerly Westland Building-Dshs) 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 Railspur Hotel (Formerly Westland Building-Dshs) use?
Its 2025 site energy-use intensity was 47.3 kBtu/ft² (132.3 kBtu/ft² source) across 73,260 sq ft, including 884,628 kWh of electricity.
What are Railspur Hotel (Formerly Westland Building-Dshs)'s carbon emissions?
Railspur Hotel (Formerly Westland Building-Dshs) reported 18 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is Railspur Hotel (Formerly Westland Building-Dshs)?
Railspur Hotel (Formerly Westland Building-Dshs) is at 100 S KING ST, in Seattle, Washington 98104. Its coordinates are 47.59856, -122.33379 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Railspur Hotel (Formerly Westland Building-Dshs) and when was it built?
Railspur Hotel (Formerly Westland Building-Dshs) has 73,260 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1907 as its year built. It is classed as office.
Is Railspur Hotel (Formerly Westland Building-Dshs) 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, “Railspur Hotel (Formerly Westland Building-Dshs), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/railspur-hotel-formerly-westland-building-dshs-f7823084 (data as of October 2, 2026).