Luna Court Condominium
Multifamily Housing in Seattle, WA · 3221 SW AVALON WAY · 98126
At a glance
Luna Court Condominium is a 95,420-square-foot multifamily housing building at 3221 SW AVALON WAY in Seattle, Washington, built in 1997. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 36.1 kBtu/ft² and 1 tCO₂e of greenhouse-gas emissions. That score is higher than 88% 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 | 100 (band A) |
| Site EUI | 36.1 kBtu/ft² |
| Source EUI | 45.4 kBtu/ft² |
| GHG emissions | 1 tCO₂e |
| GHG intensity | 0.0 kgCO₂e/ft² |
| Electricity | 46,676 kWh |
| Natural gas | 11,821 therms |
| Gross floor area | 95,420 sq ft |
| Source record | seattle:27602:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 36.1 kBtu/ft² | 1 tCO₂e |
| 2024 | 100 | +1 | 37.7 kBtu/ft² | 56 tCO₂e |
| 2023 | 99 | 45.2 kBtu/ft² | 70 tCO₂e | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | 84 | -7 | 39.1 kBtu/ft² | 73 tCO₂e |
| 2019 | 91 | -6 | 37.3 kBtu/ft² | 75 tCO₂e |
| 2018 | 97 | +7 | 32.3 kBtu/ft² | 65 tCO₂e |
| 2017 | 90 | +7 | 37.9 kBtu/ft² | 70 tCO₂e |
| 2016 | 83 | +17 | 36.1 kBtu/ft² | 63 tCO₂e |
| 2015 | 66 | 35.8 kBtu/ft² | 62 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 3221 SW AVALON WAY
- City
- Seattle
- State
- Washington
- ZIP
- 98126
- Coordinates
- 47.56391, -122.37287
Within ~1 km
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- Aura West Seattlescore 99
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- The Marq West Seattlescore 95
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See also: most efficient in Seattle · biggest emitters
How does Luna 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. Luna Court Condominium's ENERGY STAR score of 100 compares with an average of 83 across the 1,652 that report a score; it scores higher than 88% of them. Its site EUI of 36.1 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft². Its emissions intensity of 0.0 kgCO₂e/ft² is about 97% below the group average of 0.7 kgCO₂e/ft².
At 95,420 sq ft, it is about 10% above the average floor area of 86,468 sq ft for those buildings. It was built in 1997, 14 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 Luna Court Condominium's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Luna Court Condominium, covering report years 2015–2025. Its ENERGY STAR score went from 66 in 2015 to 100 in 2025 (+34 points); its best year on file was 2024, at 100. Site EUI moved from 35.8 kBtu/ft² (2015) to 36.1 kBtu/ft² (2025), an 1% increase. Reported emissions went from 62 tCO₂e to 1 tCO₂e over the same span (down 99%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. Luna Court Condominium's 36.1 kBtu/ft² across 95,420 sq ft works out to about 3.4 billion Btu (1,010 MWh-equivalent) in 2025. Its source EUI of 45.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 46,676 kWh of electricity and 11,821 therms of natural gas for the year.
Which law requires Luna Court Condominium to report its energy use?
Luna 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:27602:2025). 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
- Marlborough House Condominium· 95,280 sq ft · score 100 (A)
- Aperture On Fifth· 94,909 sq ft · score 96 (A)
- Greenlake Plaza Apts· 94,410 sq ft · score 43 (D)
- Royal Manor Condominium· 94,000 sq ft · EUI 48.4 kBtu/ft²
- Savoy Lake City· 93,857 sq ft · score 97 (A)
- Malloy Apts· 93,502 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 Luna Court Condominium's energy grade?
Luna Court Condominium scores 100 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 Luna Court Condominium use?
Its 2025 site energy-use intensity was 36.1 kBtu/ft² (45.4 kBtu/ft² source) across 95,420 sq ft, including 46,676 kWh of electricity and 11,821 therms of natural gas.
What are Luna Court Condominium's carbon emissions?
Luna Court Condominium reported 1 tCO₂e of greenhouse-gas emissions (0.0 kgCO₂e/ft²) for 2025.
Where is Luna Court Condominium?
Luna Court Condominium is at 3221 SW AVALON WAY, in Seattle, Washington 98126. Its coordinates are 47.56391, -122.37287 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Luna Court Condominium and when was it built?
Luna Court Condominium has 95,420 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1997 as its year built. It is classed as multifamily housing.
Is Luna 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, “Luna Court Condominium, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/luna-court-condominium-0ff57b45 (data as of October 2, 2026).