Keystone Place Apts
Multifamily Housing in Seattle, WA · 5410 KEYSTONE PL N · 98103
At a glance
Keystone Place Apts is a 21,880-square-foot multifamily housing building at 5410 KEYSTONE PL N in Seattle, Washington, built in 1968. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 35.2 kBtu/ft² and 4 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 35.2 kBtu/ft² |
| Source EUI | 98.5 kBtu/ft² |
| GHG emissions | 4 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 225,634 kWh |
| Gross floor area | 21,880 sq ft |
| Source record | seattle:26820:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 35.2 kBtu/ft² | 4 tCO₂e | |
| 2024 | — | 36.5 kBtu/ft² | 5 tCO₂e | |
| 2023 | — | 36.9 kBtu/ft² | 5 tCO₂e | |
| 2022 | — | 37.1 kBtu/ft² | 5 tCO₂e | |
| 2021 | — | 38.9 kBtu/ft² | 5 tCO₂e | |
| 2020 | — | 38.9 kBtu/ft² | 5 tCO₂e | |
| 2019 | — | 38.5 kBtu/ft² | 5 tCO₂e | |
| 2018 | — | 35.7 kBtu/ft² | 5 tCO₂e | |
| 2017 | — | 35.4 kBtu/ft² | 5 tCO₂e | |
| 2016 | — | 40.9 kBtu/ft² | 5 tCO₂e | |
| 2015 | — | 40.0 kBtu/ft² | 5 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
- 5410 KEYSTONE PL N
- City
- Seattle
- State
- Washington
- ZIP
- 98103
- Coordinates
- 47.66858, -122.33248
Within ~1 km
Nearby benchmarked buildings
- Good Shepherd Centerscore —
Office · 87,262 sq ft
- Wallingford Centerscore —
Enclosed Mall · 53,002 sq ft
- Mcdonald (Sps-District)score 82
K-12 School · 51,360 sq ft
- Bagley Lofts Condominiumscore —
Multifamily Housing · 47,658 sq ft
- Greenlake School (Sps-District)score 68
K-12 School · 42,239 sq ft
- Tangletown Condominiumscore 24
Multifamily Housing · 37,964 sq ft
See also: most efficient in Seattle · biggest emitters
How does Keystone Place Apts 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 35.2 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft². Its emissions intensity of 0.2 kgCO₂e/ft² is about 71% below the group average of 0.7 kgCO₂e/ft².
At 21,880 sq ft, it is about 75% below the average floor area of 86,468 sq ft for those buildings. It was built in 1968, 15 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 Keystone Place Apts's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Keystone Place Apts, covering report years 2015–2025. Site EUI moved from 40.0 kBtu/ft² (2015) to 35.2 kBtu/ft² (2025), a 12% decrease. Reported emissions went from 5 tCO₂e to 4 tCO₂e over the same span (down 12%).
What does a site EUI of 35.2 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. Keystone Place Apts's 35.2 kBtu/ft² across 21,880 sq ft works out to about 0.8 billion Btu (226 MWh-equivalent) in 2025. Its source EUI of 98.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 225,634 kWh of electricity for the year.
Which law requires Keystone Place Apts to report its energy use?
Keystone Place Apts 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:26820:2025). 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
- Rivendell Apts· 21,841 sq ft · EUI 21.5 kBtu/ft²
- State Hotel (Live/Work Lofts)· 21,840 sq ft · EUI 26.1 kBtu/ft²
- Taylor· 21,822 sq ft · score 77 (B)
- Montclair Apartments· 21,810 sq ft · score 100 (A)
- Raven-Wood Condominium· 21,798 sq ft · score 83 (B)
- H2o Apartments· 21,762 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 Keystone Place Apts's energy grade?
Keystone Place Apts did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 35.2 kBtu/ft².
How much energy does Keystone Place Apts use?
Its 2025 site energy-use intensity was 35.2 kBtu/ft² (98.5 kBtu/ft² source) across 21,880 sq ft, including 225,634 kWh of electricity.
What are Keystone Place Apts's carbon emissions?
Keystone Place Apts reported 4 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.
Where is Keystone Place Apts?
Keystone Place Apts is at 5410 KEYSTONE PL N, in Seattle, Washington 98103. Its coordinates are 47.66858, -122.33248 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Keystone Place Apts and when was it built?
Keystone Place Apts has 21,880 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1968 as its year built. It is classed as multifamily housing.
Is Keystone Place Apts 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, “Keystone Place Apts, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/keystone-place-apts-f7392aed (data as of October 2, 2026).