Council House
Multifamily Housing in Seattle, WA · 1501 17TH AVE · 98122
At a glance
Council House is a 93,021-square-foot multifamily housing building at 1501 17TH AVE in Seattle, Washington, built in 1972. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 61.0 kBtu/ft² and 97 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 61.0 kBtu/ft² |
| Source EUI | 141.7 kBtu/ft² |
| GHG emissions | 97 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Electricity | 1,137,680 kWh |
| Natural gas | 14,502 therms |
| Gross floor area | 93,021 sq ft |
| Source record | seattle:27845:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 61.0 kBtu/ft² | 97 tCO₂e | |
| 2024 | — | 61.6 kBtu/ft² | 101 tCO₂e | |
| 2023 | — | 63.3 kBtu/ft² | 104 tCO₂e | |
| 2022 | — | 68.9 kBtu/ft² | 113 tCO₂e | |
| 2021 | — | 67.5 kBtu/ft² | 107 tCO₂e | |
| 2020 | — | 65.2 kBtu/ft² | 105 tCO₂e | |
| 2019 | — | 60.4 kBtu/ft² | 97 tCO₂e | |
| 2018 | — | 62.0 kBtu/ft² | 101 tCO₂e | |
| 2017 | — | 66.6 kBtu/ft² | 103 tCO₂e | |
| 2016 | 14 | -12 | 64.7 kBtu/ft² | 96 tCO₂e |
| 2015 | 26 | 58.6 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1501 17TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.61455, -122.31043
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Council House 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 61.0 kBtu/ft² is about 75% 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 1.1 kgCO₂e/ft² is about 59% above the group average of 0.7 kgCO₂e/ft².
At 93,021 sq ft, it is roughly in line with the average floor area of 86,468 sq ft for those buildings. It was built in 1972, 11 years earlier 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 Council House's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Council House, covering report years 2015–2025. Its ENERGY STAR score went from 26 in 2015 to 14 in 2016 (-12 points); its best year on file was 2015, at 26. Site EUI moved from 58.6 kBtu/ft² (2015) to 61.0 kBtu/ft² (2025), an 4% increase. Reported emissions went from 87 tCO₂e to 97 tCO₂e over the same span (up 12%).
What does a site EUI of 61.0 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. Council House's 61.0 kBtu/ft² across 93,021 sq ft works out to about 5.7 billion Btu (1,663 MWh-equivalent) in 2025. Its source EUI of 141.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,137,680 kWh of electricity and 14,502 therms of natural gas for the year.
Which law requires Council House to report its energy use?
Council 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 2025 disclosure (source record seattle:27845:2025). 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
- Pete Gross House Apts· 92,841 sq ft · score 100 (A)
- Spur Apartments· 92,658 sq ft · score 98 (A)
- 200 Roy Street Condo· 92,342 sq ft · score 51 (D)
- Hilltop House· 92,183 sq ft · EUI 60.4 kBtu/ft²
- Chroma Apts Slu- Bld 2· 92,147 sq ft · score 87 (A)
- Ethiopian Village· 92,040 sq ft · score 93 (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 Council House's energy grade?
Council House did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 61.0 kBtu/ft².
How much energy does Council House use?
Its 2025 site energy-use intensity was 61.0 kBtu/ft² (141.7 kBtu/ft² source) across 93,021 sq ft, including 1,137,680 kWh of electricity and 14,502 therms of natural gas.
What are Council House's carbon emissions?
Council House reported 97 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2025.
Where is Council House?
Council House is at 1501 17TH AVE, in Seattle, Washington 98122. Its coordinates are 47.61455, -122.31043 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Council House and when was it built?
Council House has 93,021 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1972 as its year built. It is classed as multifamily housing.
Is Council House 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, “Council House, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/council-house-8992f19b (data as of October 2, 2026).