CAL ANDERSON HOUSE
Multifamily LR (1-4) in Seattle, WA · 400 BROADWAY · 98122
At a glance
CAL ANDERSON HOUSE is a 21,005-square-foot multifamily LR (1-4) building at 400 BROADWAY in Seattle, Washington, built in 1995. In its 2023 Seattle benchmarking disclosure it reported an ENERGY STAR score of 36 out of 100 (grade D), a site energy-use intensity of 47.4 kBtu/ft² and 26 tCO₂e of greenhouse-gas emissions. That score is higher than 12% of the 25 scored multifamily LR (1-4) buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 36 (band D) |
| Site EUI | 47.4 kBtu/ft² |
| Source EUI | 96.7 kBtu/ft² |
| GHG emissions | 26 tCO₂e |
| GHG intensity | 1.2 kgCO₂e/ft² |
| Electricity | 165,123 kWh |
| Natural gas | 4,335 therms |
| Gross floor area | 21,005 sq ft |
| Source record | seattle:21662:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 36 | -4 | 47.4 kBtu/ft² | 26 tCO₂e |
| 2022 | 40 | -15 | 50.8 kBtu/ft² | 31 tCO₂e |
| 2021 | 55 | -27 | 45.0 kBtu/ft² | 28 tCO₂e |
| 2020 | 82 | +54 | 38.8 kBtu/ft² | 28 tCO₂e |
| 2019 | 28 | +9 | 50.7 kBtu/ft² | 30 tCO₂e |
| 2018 | 19 | -17 | 50.2 kBtu/ft² | 25 tCO₂e |
| 2017 | 36 | +19 | 48.8 kBtu/ft² | 27 tCO₂e |
| 2016 | 17 | -3 | 48.7 kBtu/ft² | 26 tCO₂e |
| 2015 | 20 | 46.8 kBtu/ft² | 24 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 BROADWAY
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.60540, -122.32049
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does CAL ANDERSON HOUSE compare with other multifamily LR (1-4) buildings in Seattle?
The latest disclosures cover 53 multifamily LR (1-4) buildings in Seattle, out of 3,871 buildings citywide. CAL ANDERSON HOUSE's ENERGY STAR score of 36 compares with an average of 73 across the 25 that report a score; it scores higher than 12% of them and lower than 84%. Its site EUI of 47.4 kBtu/ft² is about 18% above the average of 40.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.2 kgCO₂e/ft² is about 39% above the group average of 0.9 kgCO₂e/ft².
At 21,005 sq ft, it is about half of the average floor area of 45,933 sq ft for those buildings. It was built in 1995, 19 years later than the group's average year built (1976).
How has CAL ANDERSON HOUSE's energy performance changed over time?
BuildingCensus holds 9 Seattle disclosures for CAL ANDERSON HOUSE, covering report years 2015–2023. Its ENERGY STAR score went from 20 in 2015 to 36 in 2023 (+16 points); its best year on file was 2020, at 82. Site EUI moved from 46.8 kBtu/ft² (2015) to 47.4 kBtu/ft² (2023), an 1% increase. Reported emissions went from 24 tCO₂e to 26 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 36 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 36 means the building performs better than about 36% of its national peers. BuildingCensus bands the score into report-card grades; 36 falls in band D — lowest band (1–54). It sits 39 points below 75, the threshold for ENERGY STAR certification. 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. CAL ANDERSON HOUSE's 47.4 kBtu/ft² across 21,005 sq ft works out to about 1 billion Btu (292 MWh-equivalent) in 2023. Its source EUI of 96.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 165,123 kWh of electricity and 4,335 therms of natural gas for the year.
Which law requires CAL ANDERSON HOUSE to report its energy use?
CAL ANDERSON HOUSE 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 2023 disclosure (source record seattle:21662:2023). 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 LR (1-4) buildings in Seattle
- SAN JUAN APTS- DEMOLISHED MAY 2016· 20,998 sq ft · score 98 (A)
- VIKING APT· 20,688 sq ft
- ELSKAN APTS· 20,599 sq ft · EUI 28.5 kBtu/ft²
- ANNARON· 20,296 sq ft · score 72 (B)
- U20 APARTMENTS· 19,488 sq ft · score 100 (A)
- RONALD MCDONALD HOUSE C - EXEMPT· 16,092 sq ft · score 38 (D)
- Multifamily LR (1-4) buildings in Seattle· 53 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 CAL ANDERSON HOUSE's energy grade?
CAL ANDERSON HOUSE scores 36 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does CAL ANDERSON HOUSE use?
Its 2023 site energy-use intensity was 47.4 kBtu/ft² (96.7 kBtu/ft² source) across 21,005 sq ft, including 165,123 kWh of electricity and 4,335 therms of natural gas.
What are CAL ANDERSON HOUSE's carbon emissions?
CAL ANDERSON HOUSE reported 26 tCO₂e of greenhouse-gas emissions (1.2 kgCO₂e/ft²) for 2023.
Where is CAL ANDERSON HOUSE?
CAL ANDERSON HOUSE is at 400 BROADWAY, in Seattle, Washington 98122. Its coordinates are 47.60540, -122.32049 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is CAL ANDERSON HOUSE and when was it built?
CAL ANDERSON HOUSE has 21,005 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1995 as its year built. It is classed as multifamily LR (1-4).
Is CAL ANDERSON HOUSE covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2023 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, “CAL ANDERSON HOUSE, Seattle, Washington — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/cal-anderson-house-f31588df (data as of October 2, 2026).