At a glance
333 Dexter Ave N is a 934,154-square-foot office building at 333 DEXTER AVE N in Seattle, Washington, built in 2018. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 49.6 kBtu/ft² and 285 tCO₂e of greenhouse-gas emissions. That score is higher than 51% 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 | 84 (band B) |
| Site EUI | 49.6 kBtu/ft² |
| Source EUI | 132.5 kBtu/ft² |
| GHG emissions | 285 tCO₂e |
| GHG intensity | 0.5 kgCO₂e/ft² |
| Electricity | 8,334,376 kWh |
| Natural gas | 22,630 therms |
| Gross floor area | 934,154 sq ft |
| Source record | seattle:442:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 84 | +1 | 49.6 kBtu/ft² | 285 tCO₂e |
| 2024 | 83 | +3 | 49.1 kBtu/ft² | 302 tCO₂e |
| 2023 | 80 | -18 | 53.1 kBtu/ft² | 284 tCO₂e |
| 2022 | 98 | 37.3 kBtu/ft² | 182 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
- 333 DEXTER AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62177, -122.34292
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does 333 Dexter Ave N compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. 333 Dexter Ave N's ENERGY STAR score of 84 compares with an average of 76 across the 378 that report a score; it scores higher than 51% of them and lower than 46%. Its site EUI of 49.6 kBtu/ft² is about 11% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.5 kgCO₂e/ft² is about 34% below the group average of 0.7 kgCO₂e/ft².
At 934,154 sq ft, it is about 376% above the average floor area of 196,452 sq ft for those buildings. It was built in 2018, 53 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 333 Dexter Ave N's energy performance changed over time?
BuildingCensus holds 4 Seattle disclosures for 333 Dexter Ave N, covering report years 2022–2025. Its ENERGY STAR score went from 98 in 2022 to 84 in 2025 (-14 points); its best year on file was 2022, at 98. Site EUI moved from 37.3 kBtu/ft² (2022) to 49.6 kBtu/ft² (2025), an 33% increase. Reported emissions went from 182 tCO₂e to 285 tCO₂e over the same span (up 56%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 falls in band B — above median (70–84). 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. 333 Dexter Ave N's 49.6 kBtu/ft² across 934,154 sq ft works out to about 46.3 billion Btu (13,579 MWh-equivalent) in 2025. Its source EUI of 132.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,334,376 kWh of electricity and 22,630 therms of natural gas for the year.
Which law requires 333 Dexter Ave N to report its energy use?
333 Dexter Ave N 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:442:2025). 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
- Bill & Melinda Gates Foundation· 920,598 sq ft · score 73 (B)
- F5 Tower· 905,655 sq ft · score 82 (B)
- 2+U· 899,127 sq ft · score 88 (A)
- 300 Pine Street· 861,702 sq ft · score 93 (A)
- 1918 Eighth Ave· 824,887 sq ft · score 83 (B)
- One Union Square· 794,592 sq ft · score 95 (A)
- 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 333 Dexter Ave N's energy grade?
333 Dexter Ave N scores 84 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 333 Dexter Ave N use?
Its 2025 site energy-use intensity was 49.6 kBtu/ft² (132.5 kBtu/ft² source) across 934,154 sq ft, including 8,334,376 kWh of electricity and 22,630 therms of natural gas.
What are 333 Dexter Ave N's carbon emissions?
333 Dexter Ave N reported 285 tCO₂e of greenhouse-gas emissions (0.5 kgCO₂e/ft²) for 2025.
Where is 333 Dexter Ave N?
333 Dexter Ave N is at 333 DEXTER AVE N, in Seattle, Washington 98109. Its coordinates are 47.62177, -122.34292 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 333 Dexter Ave N and when was it built?
333 Dexter Ave N has 934,154 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2018 as its year built. It is classed as office.
Is 333 Dexter Ave N 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, “333 Dexter Ave N, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/333-dexter-ave-n-34e7e096 (data as of October 2, 2026).