Artix Apartments
Multifamily Housing in Seattle, WA · 400 QUEEN ANNE AVE N · 98109
At a glance
Artix Apartments is a 181,630-square-foot multifamily housing building at 400 QUEEN ANNE AVE N in Seattle, Washington, built in 2022. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 14.9 kBtu/ft² and 63 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 14.9 kBtu/ft² |
| Source EUI | 28.8 kBtu/ft² |
| GHG emissions | 63 tCO₂e |
| GHG intensity | 0.4 kgCO₂e/ft² |
| Electricity | 373,399 kWh |
| Natural gas | 12,709 therms |
| Gross floor area | 181,630 sq ft |
| Source record | seattle:52005:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 14.9 kBtu/ft² | 63 tCO₂e | |
| 2024 | — | 22.3 kBtu/ft² | 139 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
- 400 QUEEN ANNE AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62230, -122.35653
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Artix 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 14.9 kBtu/ft² is about 57% 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 0.4 kgCO₂e/ft² is about half of the group average of 0.7 kgCO₂e/ft².
At 181,630 sq ft, it is about twice the average floor area of 86,468 sq ft for those buildings. It was built in 2022, 39 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 Artix Apartments's energy performance changed over time?
BuildingCensus holds 2 Seattle disclosures for Artix Apartments, covering report years 2024–2025. Site EUI moved from 22.3 kBtu/ft² (2024) to 14.9 kBtu/ft² (2025), a 33% decrease. Reported emissions went from 139 tCO₂e to 63 tCO₂e over the same span (down 55%).
What does a site EUI of 14.9 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. Artix Apartments's 14.9 kBtu/ft² across 181,630 sq ft works out to about 2.7 billion Btu (793 MWh-equivalent) in 2025. Its source EUI of 28.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 373,399 kWh of electricity and 12,709 therms of natural gas for the year.
Which law requires Artix Apartments to report its energy use?
Artix 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:52005:2025). 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
- The Elara· 180,605 sq ft · EUI 37.4 kBtu/ft²
- Tower 801, 801 PINE ST· 179,745 sq ft · score 52 (D)
- Meridian· 179,678 sq ft · score 45 (D)
- Axis Apts (Formerly Expo 62)· 178,911 sq ft · score 98 (A)
- Melody Jabooda Apts· 178,407 sq ft · score 69 (C)
- Koi· 177,528 sq ft · score 100 (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 Artix Apartments's energy grade?
Artix Apartments did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 14.9 kBtu/ft².
How much energy does Artix Apartments use?
Its 2025 site energy-use intensity was 14.9 kBtu/ft² (28.8 kBtu/ft² source) across 181,630 sq ft, including 373,399 kWh of electricity and 12,709 therms of natural gas.
What are Artix Apartments's carbon emissions?
Artix Apartments reported 63 tCO₂e of greenhouse-gas emissions (0.4 kgCO₂e/ft²) for 2025.
Where is Artix Apartments?
Artix Apartments is at 400 QUEEN ANNE AVE N, in Seattle, Washington 98109. Its coordinates are 47.62230, -122.35653 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Artix Apartments and when was it built?
Artix Apartments has 181,630 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2022 as its year built. It is classed as multifamily housing.
Is Artix 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, “Artix Apartments, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/artix-apartments-dccb811b (data as of October 2, 2026).