Ross Manor
Multifamily Housing in Seattle, WA · 1420 WESTERN AVE · 98101
At a glance
Ross Manor is a 70,939-square-foot multifamily housing building at 1420 WESTERN AVE in Seattle, Washington, built in 1984. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 52.1 kBtu/ft² and 70 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 52.1 kBtu/ft² |
| Source EUI | 120.1 kBtu/ft² |
| GHG emissions | 70 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 776,617 kWh |
| Natural gas | 10,451 therms |
| Gross floor area | 70,939 sq ft |
| Source record | seattle:28089:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 52.1 kBtu/ft² | 70 tCO₂e | |
| 2024 | — | 50.9 kBtu/ft² | 69 tCO₂e | |
| 2023 | — | 50.7 kBtu/ft² | 68 tCO₂e | |
| 2022 | — | 37.6 kBtu/ft² | 16 tCO₂e | |
| 2021 | — | 39.8 kBtu/ft² | 16 tCO₂e | |
| 2020 | — | 38.3 kBtu/ft² | 16 tCO₂e | |
| 2019 | — | 35.8 kBtu/ft² | 15 tCO₂e | |
| 2018 | — | 41.7 kBtu/ft² | 38 tCO₂e | |
| 2017 | — | 52.7 kBtu/ft² | 70 tCO₂e | |
| 2016 | — | 46.6 kBtu/ft² | 64 tCO₂e | |
| 2015 | — | 44.7 kBtu/ft² | 58 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
- 1420 WESTERN AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.60806, -122.34037
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Ross Manor 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 52.1 kBtu/ft² is about 49% 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 1.0 kgCO₂e/ft² is about 41% above the group average of 0.7 kgCO₂e/ft².
At 70,939 sq ft, it is about 18% below the average floor area of 86,468 sq ft for those buildings. Its 1984 construction date is close to 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 Ross Manor's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Ross Manor, covering report years 2015–2025. Site EUI moved from 44.7 kBtu/ft² (2015) to 52.1 kBtu/ft² (2025), an 17% increase. Reported emissions went from 58 tCO₂e to 70 tCO₂e over the same span (up 20%).
What does a site EUI of 52.1 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. Ross Manor's 52.1 kBtu/ft² across 70,939 sq ft works out to about 3.7 billion Btu (1,083 MWh-equivalent) in 2025. Its source EUI of 120.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 776,617 kWh of electricity and 10,451 therms of natural gas for the year.
Which law requires Ross Manor to report its energy use?
Ross Manor 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:28089:2025). 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
- Livingston Baker Mixed Use· 70,850 sq ft · EUI 67.7 kBtu/ft²
- City Lights On Harbor Condominium· 70,207 sq ft · score 83 (B)
- Bayview Tower· 70,200 sq ft · score 45 (D)
- Latitude Queen Anne· 70,191 sq ft · score 100 (A)
- Jefferson Court· 70,094 sq ft · score 94 (A)
- Lyons Gate Apartments· 69,881 sq ft
- 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 Ross Manor's energy grade?
Ross Manor did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 52.1 kBtu/ft².
How much energy does Ross Manor use?
Its 2025 site energy-use intensity was 52.1 kBtu/ft² (120.1 kBtu/ft² source) across 70,939 sq ft, including 776,617 kWh of electricity and 10,451 therms of natural gas.
What are Ross Manor's carbon emissions?
Ross Manor reported 70 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2025.
Where is Ross Manor?
Ross Manor is at 1420 WESTERN AVE, in Seattle, Washington 98101. Its coordinates are 47.60806, -122.34037 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Ross Manor and when was it built?
Ross Manor has 70,939 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1984 as its year built. It is classed as multifamily housing.
Is Ross Manor 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, “Ross Manor, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/ross-manor-32620caa (data as of October 2, 2026).