At a glance
Astra Hotel-Marriott is a 96,985-square-foot hotel at 300 TERRY AVE N in Seattle, Washington, built in 2018. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 61 out of 100 (grade C), a site energy-use intensity of 88.0 kBtu/ft² and 420 tCO₂e of greenhouse-gas emissions. That score is higher than 18% of the 78 scored hotel buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 61 (band C) |
| Site EUI | 88.0 kBtu/ft² |
| Source EUI | 158.2 kBtu/ft² |
| GHG emissions | 420 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 1,708,864 kWh |
| Natural gas | 78,045 therms |
| Gross floor area | 96,985 sq ft |
| Source record | seattle:50883:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 61 | +6 | 88.0 kBtu/ft² | 420 tCO₂e |
| 2024 | 55 | +2 | 94.8 kBtu/ft² | 499 tCO₂e |
| 2023 | 53 | 95.3 kBtu/ft² | 493 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
- 300 TERRY AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62103, -122.33681
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Astra Hotel-Marriott compare with other hotel buildings in Seattle?
The latest disclosures cover 86 hotel buildings in Seattle, out of 3,871 buildings citywide. Astra Hotel-Marriott's ENERGY STAR score of 61 compares with an average of 76 across the 78 that report a score; it scores higher than 18% of them and lower than 79%. Its site EUI of 88.0 kBtu/ft² is about 29% above the average of 68.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.7 kgCO₂e/ft² is about 36% above the group average of 2.0 kgCO₂e/ft².
At 96,985 sq ft, it is about 42% below the average floor area of 165,912 sq ft for those buildings. It was built in 2018, 48 years later than the group's average year built (1971). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has Astra Hotel-Marriott's energy performance changed over time?
BuildingCensus holds 3 Seattle disclosures for Astra Hotel-Marriott, covering report years 2023–2025. Its ENERGY STAR score went from 53 in 2023 to 61 in 2025 (+8 points). Site EUI moved from 95.3 kBtu/ft² (2023) to 88.0 kBtu/ft² (2025), a 8% decrease. Reported emissions went from 493 tCO₂e to 420 tCO₂e over the same span (down 15%).
What does an ENERGY STAR score of 61 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 61 means the building performs better than about 61% of its national peers. BuildingCensus bands the score into report-card grades; 61 falls in band C — below median (55–69). It sits 14 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. Astra Hotel-Marriott's 88.0 kBtu/ft² across 96,985 sq ft works out to about 8.5 billion Btu (2,501 MWh-equivalent) in 2025. Its source EUI of 158.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,708,864 kWh of electricity and 78,045 therms of natural gas for the year.
Which law requires Astra Hotel-Marriott to report its energy use?
Astra Hotel-Marriott 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:50883:2025). 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 hotel buildings in Seattle
- Citizenm South Lake Union Hotel· 89,199 sq ft · score 13 (D)
- Watertown Hotel· 88,592 sq ft · score 97 (A)
- Mayflower Park Hotel· 88,434 sq ft
- Fhcc – Behnke Family House· 84,103 sq ft · score 83 (B)
- CAMLIN WORLDMARK HOTEL· 83,008 sq ft · score 10 (D)
- Silver Cloud Inn University· 81,871 sq ft · score 91 (A)
- Hotel buildings in Seattle· 86 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 Astra Hotel-Marriott's energy grade?
Astra Hotel-Marriott scores 61 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Astra Hotel-Marriott use?
Its 2025 site energy-use intensity was 88.0 kBtu/ft² (158.2 kBtu/ft² source) across 96,985 sq ft, including 1,708,864 kWh of electricity and 78,045 therms of natural gas.
What are Astra Hotel-Marriott's carbon emissions?
Astra Hotel-Marriott reported 420 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2025.
Where is Astra Hotel-Marriott?
Astra Hotel-Marriott is at 300 TERRY AVE N, in Seattle, Washington 98109. Its coordinates are 47.62103, -122.33681 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Astra Hotel-Marriott and when was it built?
Astra Hotel-Marriott has 96,985 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2018 as its year built. It is classed as hotel.
Is Astra Hotel-Marriott 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, “Astra Hotel-Marriott, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/astra-hotel-marriott-a4048911 (data as of October 2, 2026).