Belltown Court Condominium
Multifamily Housing in Seattle, WA · 2400 1ST AVE · 98121
At a glance
Belltown Court Condominium is a 224,732-square-foot multifamily housing building at 2400 1ST AVE in Seattle, Washington, built in 1994. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 37.7 kBtu/ft² and 127 tCO₂e of greenhouse-gas emissions. That score is higher than 65% of the 1,652 scored multifamily housing buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 37.7 kBtu/ft² |
| Source EUI | 89.9 kBtu/ft² |
| GHG emissions | 127 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 1,674,265 kWh |
| Natural gas | 17,783 therms |
| Gross floor area | 224,732 sq ft |
| Source record | seattle:19931:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 96 | +4 | 37.7 kBtu/ft² | 127 tCO₂e |
| 2024 | 92 | -3 | 42.8 kBtu/ft² | 175 tCO₂e |
| 2023 | 95 | +1 | 39.9 kBtu/ft² | 151 tCO₂e |
| 2022 | 94 | -3 | 42.1 kBtu/ft² | 167 tCO₂e |
| 2021 | 97 | +1 | 37.1 kBtu/ft² | 118 tCO₂e |
| 2020 | 96 | 37.5 kBtu/ft² | 129 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | 100 | +62 | 16.0 kBtu/ft² | 181 tCO₂e |
| 2017 | 38 | +12 | 55.0 kBtu/ft² | 162 tCO₂e |
| 2016 | 26 | +4 | 53.4 kBtu/ft² | 157 tCO₂e |
| 2015 | 22 | 55.5 kBtu/ft² | 168 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 1ST AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98121
- Coordinates
- 47.61468, -122.34794
Within ~1 km
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- Via 6 Apartmentsscore —
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- Olympus Aptsscore 97
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- The Emeraldscore 98
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See also: most efficient in Seattle · biggest emitters
How does Belltown Court Condominium 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. Belltown Court Condominium's ENERGY STAR score of 96 compares with an average of 83 across the 1,652 that report a score; it scores higher than 65% of them and lower than 30%. Its site EUI of 37.7 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft². Its emissions intensity of 0.6 kgCO₂e/ft² is roughly in line with the group average of 0.7 kgCO₂e/ft².
At 224,732 sq ft, it is about 160% above the average floor area of 86,468 sq ft for those buildings. It was built in 1994, 11 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 Belltown Court Condominium's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Belltown Court Condominium, covering report years 2015–2025. Its ENERGY STAR score went from 22 in 2015 to 96 in 2025 (+74 points); its best year on file was 2018, at 100. Site EUI moved from 55.5 kBtu/ft² (2015) to 37.7 kBtu/ft² (2025), a 32% decrease. Reported emissions went from 168 tCO₂e to 127 tCO₂e over the same span (down 25%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 falls in band A — high performer (85–100). 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. Belltown Court Condominium's 37.7 kBtu/ft² across 224,732 sq ft works out to about 8.5 billion Btu (2,483 MWh-equivalent) in 2025. Its source EUI of 89.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,674,265 kWh of electricity and 17,783 therms of natural gas for the year.
Which law requires Belltown Court Condominium to report its energy use?
Belltown Court Condominium 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:19931:2025). 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
- Luma Condominium· 224,326 sq ft · score 79 (B)
- Gallery Belltown· 224,105 sq ft · EUI 41.2 kBtu/ft²
- Newmark Tower Condominium (Multifamily Portion)· 220,018 sq ft · score 79 (B)
- Concord Condominium· 219,874 sq ft · score 11 (D)
- University House - Wallingford· 217,146 sq ft · score 54 (D)
- Linden Square· 214,388 sq ft · score 99 (A)
- 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
- Least efficient large buildings in Seattle
- Biggest emitters in Seattle
Frequently asked questions
What is Belltown Court Condominium's energy grade?
Belltown Court Condominium scores 96 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Belltown Court Condominium use?
Its 2025 site energy-use intensity was 37.7 kBtu/ft² (89.9 kBtu/ft² source) across 224,732 sq ft, including 1,674,265 kWh of electricity and 17,783 therms of natural gas.
What are Belltown Court Condominium's carbon emissions?
Belltown Court Condominium reported 127 tCO₂e of greenhouse-gas emissions (0.6 kgCO₂e/ft²) for 2025.
Where is Belltown Court Condominium?
Belltown Court Condominium is at 2400 1ST AVE, in Seattle, Washington 98121. Its coordinates are 47.61468, -122.34794 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Belltown Court Condominium and when was it built?
Belltown Court Condominium has 224,732 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1994 as its year built. It is classed as multifamily housing.
Is Belltown Court Condominium 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, “Belltown Court Condominium, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/belltown-court-condominium-54266e64 (data as of October 2, 2026).