2400 Boston
Multifamily Housing in Seattle, WA · 2400 E BOSTON ST · 98112
At a glance
2400 Boston is a 34,132-square-foot multifamily housing building at 2400 E BOSTON ST in Seattle, Washington, built in 2019. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 26.5 kBtu/ft² and 4 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 26.5 kBtu/ft² |
| Source EUI | 74.3 kBtu/ft² |
| GHG emissions | 4 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 181,585 kWh |
| Gross floor area | 34,132 sq ft |
| Source record | seattle:50502:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 26.5 kBtu/ft² | 4 tCO₂e | |
| 2024 | — | 30.0 kBtu/ft² | 4 tCO₂e | |
| 2023 | — | 28.3 kBtu/ft² | 4 tCO₂e | |
| 2022 | — | 27.1 kBtu/ft² | 4 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | 100 | 15.8 kBtu/ft² | 3 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
- 2400 E BOSTON ST
- City
- Seattle
- State
- Washington
- ZIP
- 98112
- Coordinates
- 47.63890, -122.30156
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does 2400 Boston compare with other multifamily housing buildings in Seattle?
The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 26.5 kBtu/ft² is about 24% below the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.1 kgCO₂e/ft² is about 79% below the group average of 0.7 kgCO₂e/ft².
At 34,132 sq ft, it is about 61% below the average floor area of 86,468 sq ft for those buildings. It was built in 2019, 36 years later than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 2400 Boston's energy performance changed over time?
BuildingCensus holds 6 Seattle disclosures for 2400 Boston, covering report years 2020–2025. Site EUI moved from 15.8 kBtu/ft² (2020) to 26.5 kBtu/ft² (2025), an 68% increase. Reported emissions went from 3 tCO₂e to 4 tCO₂e over the same span (up 15%).
What does a site EUI of 26.5 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. 2400 Boston's 26.5 kBtu/ft² across 34,132 sq ft works out to about 0.9 billion Btu (265 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 181,585 kWh of electricity for the year.
Which law requires 2400 Boston to report its energy use?
2400 Boston 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:50502:2025). 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.
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- Multifamily Housing buildings in Seattle· 1,971 benchmarked
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- Biggest emitters in Seattle
Frequently asked questions
What is 2400 Boston's energy grade?
2400 Boston did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 26.5 kBtu/ft².
How much energy does 2400 Boston use?
Its 2025 site energy-use intensity was 26.5 kBtu/ft² (74.3 kBtu/ft² source) across 34,132 sq ft, including 181,585 kWh of electricity.
What are 2400 Boston's carbon emissions?
2400 Boston reported 4 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2025.
Where is 2400 Boston?
2400 Boston is at 2400 E BOSTON ST, in Seattle, Washington 98112. Its coordinates are 47.63890, -122.30156 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 2400 Boston and when was it built?
2400 Boston has 34,132 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2019 as its year built. It is classed as multifamily housing.
Is 2400 Boston 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, “2400 Boston, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/2400-boston-0cc94fae (data as of October 2, 2026).