First Hill Medical Pavilion (Hart First Hill Llc)
Mixed Use Property in Seattle, WA · 1124 COLUMBIA ST · 98104
At a glance
First Hill Medical Pavilion (Hart First Hill Llc) is a 383,914-square-foot mixed use property building at 1124 COLUMBIA ST in Seattle, Washington, built in 1975. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 78.1 kBtu/ft² and 961 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 78.1 kBtu/ft² |
| Source EUI | 147.0 kBtu/ft² |
| GHG emissions | 961 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 2,447,606 kWh |
| Gross floor area | 383,914 sq ft |
| Source record | seattle:23311:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 78.1 kBtu/ft² | 961 tCO₂e | |
| 2024 | — | 86.4 kBtu/ft² | 1,127 tCO₂e | |
| 2023 | — | 97.2 kBtu/ft² | 1,276 tCO₂e | |
| 2022 | — | 107.2 kBtu/ft² | 1,412 tCO₂e | |
| 2021 | 81 | +18 | 101.3 kBtu/ft² | 1,444 tCO₂e |
| 2020 | 63 | +4 | 123.2 kBtu/ft² | 1,412 tCO₂e |
| 2019 | 59 | -3 | 126.9 kBtu/ft² | 1,369 tCO₂e |
| 2018 | 62 | -2 | 120.1 kBtu/ft² | 1,249 tCO₂e |
| 2017 | 64 | +12 | 122.9 kBtu/ft² | 1,303 tCO₂e |
| 2016 | 52 | 111.0 kBtu/ft² | 1,147 tCO₂e | |
| 2015 | — | 91.9 kBtu/ft² | 1,152 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
- 1124 COLUMBIA ST
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.60862, -122.32372
Within ~1 km
Nearby benchmarked buildings
College/University · 2,099,379 sq ft
Parking · 2,080,885 sq ft
- Columbia Centerscore 90
Office · 1,952,220 sq ft
Hospital (General Medical & Surgical) · 1,926,841 sq ft
- Seattle Convention Centerscore —
Convention Center · 1,842,925 sq ft
- Seattle Municipal Towerscore 86
Office · 1,354,987 sq ft
See also: most efficient in Seattle · biggest emitters
How does First Hill Medical Pavilion (Hart First Hill Llc) compare with other mixed use property buildings in Seattle?
The latest disclosures cover 157 mixed use property buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 78.1 kBtu/ft² is about 14% above the average of 68.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.8 kgCO₂e/ft² is about 174% above the group average of 1.4 kgCO₂e/ft².
At 383,914 sq ft, it is about 132% above the average floor area of 165,352 sq ft for those buildings. It was built in 1975, 7 years later than the group's average year built (1968). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has First Hill Medical Pavilion (Hart First Hill Llc)'s energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for First Hill Medical Pavilion (Hart First Hill Llc), covering report years 2015–2025. Its ENERGY STAR score went from 52 in 2016 to 81 in 2021 (+29 points). Site EUI moved from 91.9 kBtu/ft² (2015) to 78.1 kBtu/ft² (2025), a 15% decrease. Reported emissions went from 1,152 tCO₂e to 961 tCO₂e over the same span (down 17%).
What does a site EUI of 78.1 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. First Hill Medical Pavilion (Hart First Hill Llc)'s 78.1 kBtu/ft² across 383,914 sq ft works out to about 30 billion Btu (8,787 MWh-equivalent) in 2025. Its source EUI of 147.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,447,606 kWh of electricity for the year.
Which law requires First Hill Medical Pavilion (Hart First Hill Llc) to report its energy use?
First Hill Medical Pavilion (Hart First Hill Llc) 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:23311:2025). 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 mixed use property buildings in Seattle
- Metropolitan Park North Building· 380,312 sq ft · EUI 23.3 kBtu/ft²
- Boeing South Park Campus Report· 334,368 sq ft · EUI 134.2 kBtu/ft²
- Fred Meyer Greenwood· 314,958 sq ft · score 86 (A)
- Washington Athletic Club· 305,548 sq ft · EUI 96.4 kBtu/ft²
- Pacific Tower· 304,052 sq ft · score 91 (A)
- 507 Northgate· 295,410 sq ft · score 21 (D)
- Mixed Use Property buildings in Seattle· 157 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 First Hill Medical Pavilion (Hart First Hill Llc)'s energy grade?
First Hill Medical Pavilion (Hart First Hill Llc) did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 78.1 kBtu/ft².
How much energy does First Hill Medical Pavilion (Hart First Hill Llc) use?
Its 2025 site energy-use intensity was 78.1 kBtu/ft² (147.0 kBtu/ft² source) across 383,914 sq ft, including 2,447,606 kWh of electricity.
What are First Hill Medical Pavilion (Hart First Hill Llc)'s carbon emissions?
First Hill Medical Pavilion (Hart First Hill Llc) reported 961 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2025.
Where is First Hill Medical Pavilion (Hart First Hill Llc)?
First Hill Medical Pavilion (Hart First Hill Llc) is at 1124 COLUMBIA ST, in Seattle, Washington 98104. Its coordinates are 47.60862, -122.32372 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is First Hill Medical Pavilion (Hart First Hill Llc) and when was it built?
First Hill Medical Pavilion (Hart First Hill Llc) has 383,914 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1975 as its year built. It is classed as mixed use property.
Is First Hill Medical Pavilion (Hart First Hill Llc) 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, “First Hill Medical Pavilion (Hart First Hill Llc), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/first-hill-medical-pavilion-hart-first-hill-llc-fce7df77 (data as of October 2, 2026).