King Co Public Health
Medical Office in Seattle, WA · 2124 4TH AVE · 98121
At a glance
King Co Public Health is a 26,670-square-foot medical office at 2124 4TH AVE in Seattle, Washington, built in 1952. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 56 out of 100 (grade C), a site energy-use intensity of 66.2 kBtu/ft² and 10 tCO₂e of greenhouse-gas emissions. That score is higher than 38% of the 32 scored medical office buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 56 (band C) |
| Site EUI | 66.2 kBtu/ft² |
| Source EUI | 185.4 kBtu/ft² |
| GHG emissions | 10 tCO₂e |
| GHG intensity | 0.4 kgCO₂e/ft² |
| Electricity | 517,554 kWh |
| Gross floor area | 26,670 sq ft |
| Source record | seattle:19910:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 56 | +4 | 66.2 kBtu/ft² | 10 tCO₂e |
| 2024 | 52 | -1 | 68.2 kBtu/ft² | 11 tCO₂e |
| 2023 | 53 | +5 | 68.2 kBtu/ft² | 11 tCO₂e |
| 2022 | 48 | -15 | 71.4 kBtu/ft² | 11 tCO₂e |
| 2021 | 63 | +14 | 62.7 kBtu/ft² | 10 tCO₂e |
| 2020 | 49 | 57.7 kBtu/ft² | 9 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | 60 | +1 | 55.0 kBtu/ft² | 9 tCO₂e |
| 2017 | 59 | +8 | 57.1 kBtu/ft² | 9 tCO₂e |
| 2016 | 51 | -8 | 58.2 kBtu/ft² | 9 tCO₂e |
| 2015 | 59 | 56.0 kBtu/ft² | 12 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
- 2124 4TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98121
- Coordinates
- 47.61460, -122.34217
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does King Co Public Health compare with other medical office buildings in Seattle?
The latest disclosures cover 45 medical office buildings in Seattle, out of 3,871 buildings citywide. King Co Public Health's ENERGY STAR score of 56 compares with an average of 60 across the 32 that report a score; it scores higher than 38% of them and lower than 59%. Its site EUI of 66.2 kBtu/ft² is about 25% below the average of 88.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.4 kgCO₂e/ft² is about 75% below the group average of 1.5 kgCO₂e/ft².
At 26,670 sq ft, it is about 82% below the average floor area of 145,612 sq ft for those buildings. It was built in 1952, 27 years earlier than the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².
How has King Co Public Health's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for King Co Public Health, covering report years 2015–2025. Its ENERGY STAR score went from 59 in 2015 to 56 in 2025 (-3 points); its best year on file was 2021, at 63. Site EUI moved from 56.0 kBtu/ft² (2015) to 66.2 kBtu/ft² (2025), an 18% increase. Reported emissions went from 12 tCO₂e to 10 tCO₂e over the same span (down 12%).
What does an ENERGY STAR score of 56 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 56 means the building performs better than about 56% of its national peers. BuildingCensus bands the score into report-card grades; 56 falls in band C — below median (55–69). It sits 19 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. King Co Public Health's 66.2 kBtu/ft² across 26,670 sq ft works out to about 1.8 billion Btu (517 MWh-equivalent) in 2025. Its source EUI of 185.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 517,554 kWh of electricity for the year.
Which law requires King Co Public Health to report its energy use?
King Co Public Health 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:19910:2025). 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 medical office buildings in Seattle
- Neighborcare Health Medical Clinic· 25,880 sq ft · score 5 (D)
- SEATTLE HEALING ARTS- INACTIVE-DEMOLISHED· 23,595 sq ft · score 62 (C)
- Landmark Building· 23,022 sq ft · score 94 (A)
- Union Bay Plaza· 22,135 sq ft
- Medical Office buildings in Seattle· 45 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 King Co Public Health's energy grade?
King Co Public Health scores 56 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does King Co Public Health use?
Its 2025 site energy-use intensity was 66.2 kBtu/ft² (185.4 kBtu/ft² source) across 26,670 sq ft, including 517,554 kWh of electricity.
What are King Co Public Health's carbon emissions?
King Co Public Health reported 10 tCO₂e of greenhouse-gas emissions (0.4 kgCO₂e/ft²) for 2025.
Where is King Co Public Health?
King Co Public Health is at 2124 4TH AVE, in Seattle, Washington 98121. Its coordinates are 47.61460, -122.34217 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is King Co Public Health and when was it built?
King Co Public Health has 26,670 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1952 as its year built. It is classed as medical office.
Is King Co Public Health 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, “King Co Public Health, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/king-co-public-health-f9bce196 (data as of October 2, 2026).