Griffis Belltown Apartments
Multifamily Housing in Seattle, WA · 2400 ELLIOTT AVE · 98121
At a glance
Griffis Belltown Apartments is a 320,651-square-foot multifamily housing building at 2400 ELLIOTT AVE in Seattle, Washington, built in 1990. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 44.8 kBtu/ft² and 144 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 44.8 kBtu/ft² |
| Source EUI | 105.0 kBtu/ft² |
| GHG emissions | 144 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 1,737,663 kWh |
| Natural gas | 21,052 therms |
| Gross floor area | 320,651 sq ft |
| Source record | seattle:21839:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 44.8 kBtu/ft² | 144 tCO₂e | |
| 2024 | — | — | — | |
| 2023 | — | — | 98 tCO₂e | |
| 2022 | — | — | 36 tCO₂e | |
| 2021 | 91 | +2 | 37.4 kBtu/ft² | 131 tCO₂e |
| 2020 | 89 | +1 | 37.8 kBtu/ft² | 139 tCO₂e |
| 2019 | 88 | +23 | 40.2 kBtu/ft² | 174 tCO₂e |
| 2018 | 65 | +9 | 34.9 kBtu/ft² | 119 tCO₂e |
| 2017 | 56 | +6 | 37.0 kBtu/ft² | 124 tCO₂e |
| 2016 | 50 | -11 | 33.9 kBtu/ft² | 102 tCO₂e |
| 2015 | 61 | 31.5 kBtu/ft² | 87 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 ELLIOTT AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98121
- Coordinates
- 47.61322, -122.34984
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Griffis Belltown Apartments 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 44.8 kBtu/ft² is about 28% above the average of 34.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is about 16% above the group average of 0.7 kgCO₂e/ft².
At 320,651 sq ft, it is about 271% above the average floor area of 86,468 sq ft for those buildings. It was built in 1990, 7 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 Griffis Belltown Apartments's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Griffis Belltown Apartments, covering report years 2015–2025. Its ENERGY STAR score went from 61 in 2015 to 91 in 2021 (+30 points). Site EUI moved from 31.5 kBtu/ft² (2015) to 44.8 kBtu/ft² (2025), an 42% increase. Reported emissions went from 87 tCO₂e to 144 tCO₂e over the same span (up 66%).
What does a site EUI of 44.8 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. Griffis Belltown Apartments's 44.8 kBtu/ft² across 320,651 sq ft works out to about 14.4 billion Btu (4,210 MWh-equivalent) in 2025. Its source EUI of 105.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,737,663 kWh of electricity and 21,052 therms of natural gas for the year.
Which law requires Griffis Belltown Apartments to report its energy use?
Griffis Belltown Apartments 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:21839:2025). 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 multifamily housing buildings in Seattle
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- Multifamily Housing buildings in Seattle· 1,971 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
- Most efficient large buildings in Seattle
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- Biggest emitters in Seattle
Frequently asked questions
What is Griffis Belltown Apartments's energy grade?
Griffis Belltown Apartments did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 44.8 kBtu/ft².
How much energy does Griffis Belltown Apartments use?
Its 2025 site energy-use intensity was 44.8 kBtu/ft² (105.0 kBtu/ft² source) across 320,651 sq ft, including 1,737,663 kWh of electricity and 21,052 therms of natural gas.
What are Griffis Belltown Apartments's carbon emissions?
Griffis Belltown Apartments reported 144 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.
Where is Griffis Belltown Apartments?
Griffis Belltown Apartments is at 2400 ELLIOTT AVE, in Seattle, Washington 98121. Its coordinates are 47.61322, -122.34984 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Griffis Belltown Apartments and when was it built?
Griffis Belltown Apartments has 320,651 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1990 as its year built. It is classed as multifamily housing.
Is Griffis Belltown Apartments 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, “Griffis Belltown Apartments, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/griffis-belltown-apartments-e260fdf2 (data as of October 2, 2026).