4025 Stone Apartments
Multifamily Housing in Seattle, WA · 4025 STONE WAY N · 98103
At a glance
4025 Stone Apartments is a 34,810-square-foot multifamily housing building at 4025 STONE WAY N in Seattle, Washington, built in 2019. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 38.1 kBtu/ft² and 27 tCO₂e of greenhouse-gas emissions. That score is higher than 61% of the 1,652 scored multifamily housing buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 95 (band A) |
| Site EUI | 38.1 kBtu/ft² |
| Source EUI | 82.2 kBtu/ft² |
| GHG emissions | 27 tCO₂e |
| GHG intensity | 0.9 kgCO₂e/ft² |
| Electricity | 217,559 kWh |
| Natural gas | 4,312 therms |
| Gross floor area | 34,810 sq ft |
| Source record | seattle:52023:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 95 | +6 | 38.1 kBtu/ft² | 27 tCO₂e |
| 2024 | 89 | 40.3 kBtu/ft² | 28 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
- 4025 STONE WAY N
- City
- Seattle
- State
- Washington
- ZIP
- 98103
- Coordinates
- 47.65614, -122.34261
Within ~1 km
Nearby benchmarked buildings
- Broadstone Vinscore 83
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- Bowman Stonewayscore 99
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- Parkview & Waterside Campusscore —
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- Adobe Building-801-N 34 St.score 74
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- Lincoln High (Sps-District)score 93
K-12 School · 241,066 sq ft
See also: most efficient in Seattle · biggest emitters
How does 4025 Stone 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. 4025 Stone Apartments's ENERGY STAR score of 95 compares with an average of 83 across the 1,652 that report a score; it scores higher than 61% of them and lower than 35%. Its site EUI of 38.1 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft². Its emissions intensity of 0.9 kgCO₂e/ft² is about 26% above the group average of 0.7 kgCO₂e/ft².
At 34,810 sq ft, it is about 60% below the average floor area of 86,468 sq ft for those buildings. It was built in 2019, 36 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 4025 Stone Apartments's energy performance changed over time?
BuildingCensus holds 2 Seattle disclosures for 4025 Stone Apartments, covering report years 2024–2025. Its ENERGY STAR score went from 89 in 2024 to 95 in 2025 (+6 points). Site EUI moved from 40.3 kBtu/ft² (2024) to 38.1 kBtu/ft² (2025), a 5% decrease. Reported emissions went from 28 tCO₂e to 27 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 4025 Stone Apartments's 38.1 kBtu/ft² across 34,810 sq ft works out to about 1.3 billion Btu (389 MWh-equivalent) in 2025. Its source EUI of 82.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 217,559 kWh of electricity and 4,312 therms of natural gas for the year.
Which law requires 4025 Stone Apartments to report its energy use?
4025 Stone 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:52023:2025). 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 Roundcliffe· 34,800 sq ft · score 72 (B)
- Maverick Apt· 34,735 sq ft · score 98 (A)
- Overlook At Magnolia (Bldg D)· 34,728 sq ft · score 63 (C)
- 700 Crockett Place Condominium· 34,726 sq ft · score 90 (A)
- Patrick Place Apartments· 34,723 sq ft · score 66 (C)
- Myrtle Street Apts· 34,678 sq ft · score 85 (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 4025 Stone Apartments's energy grade?
4025 Stone Apartments scores 95 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 4025 Stone Apartments use?
Its 2025 site energy-use intensity was 38.1 kBtu/ft² (82.2 kBtu/ft² source) across 34,810 sq ft, including 217,559 kWh of electricity and 4,312 therms of natural gas.
What are 4025 Stone Apartments's carbon emissions?
4025 Stone Apartments reported 27 tCO₂e of greenhouse-gas emissions (0.9 kgCO₂e/ft²) for 2025.
Where is 4025 Stone Apartments?
4025 Stone Apartments is at 4025 STONE WAY N, in Seattle, Washington 98103. Its coordinates are 47.65614, -122.34261 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 4025 Stone Apartments and when was it built?
4025 Stone Apartments has 34,810 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2019 as its year built. It is classed as multifamily housing.
Is 4025 Stone 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, “4025 Stone Apartments, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/4025-stone-apartments-fe4e2b29 (data as of October 2, 2026).