Uw Northwest Hospital & Medical Center - Campus
Hospital (General Medical & Surgical) in Seattle, WA · 1550 N 115TH ST · 98133
At a glance
Uw Northwest Hospital & Medical Center - Campus is a 668,027-square-foot hospital (general medical & surgical) at 1550 N 115TH ST in Seattle, Washington, built in 1966. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 81 out of 100 (grade B) and a site energy-use intensity of 207.7 kBtu/ft². That score is higher than 40% of the 10 scored hospital (general medical & surgical) buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 81 (band B) |
| Site EUI | 207.7 kBtu/ft² |
| Source EUI | 384.6 kBtu/ft² |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 15,327,420 kWh |
| Natural gas | 619,327 therms |
| Gross floor area | 668,027 sq ft |
| Source record | seattle:23071:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 81 | +54 | 207.7 kBtu/ft² | — |
| 2024 | 27 | -7 | 281.7 kBtu/ft² | 2,983 tCO₂e |
| 2023 | 34 | +6 | 273.5 kBtu/ft² | 2,945 tCO₂e |
| 2022 | 28 | -16 | 293.4 kBtu/ft² | 3,016 tCO₂e |
| 2021 | 44 | +17 | 263.2 kBtu/ft² | 2,948 tCO₂e |
| 2020 | 27 | 290.5 kBtu/ft² | 3,014 tCO₂e | |
| 2019 | — | — | 3,285 tCO₂e | |
| 2018 | 64 | +16 | 283.7 kBtu/ft² | 3,185 tCO₂e |
| 2017 | 48 | -37 | 297.8 kBtu/ft² | 3,340 tCO₂e |
| 2016 | 85 | -3 | 204.7 kBtu/ft² | 3,222 tCO₂e |
| 2015 | 88 | 194.8 kBtu/ft² | 2,989 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
- 1550 N 115TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98133
- Coordinates
- 47.71425, -122.33689
Within ~1 km
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- Home Depotscore 80
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- Northpark Villascore 100
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- Northway West Buildingscore —
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- Northway Square Eastscore 68
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See also: most efficient in Seattle · biggest emitters
How does Uw Northwest Hospital & Medical Center - Campus compare with other hospital (general medical & surgical) buildings in Seattle?
The latest disclosures cover 11 hospital (general medical & surgical) buildings in Seattle, out of 3,871 buildings citywide. Uw Northwest Hospital & Medical Center - Campus's ENERGY STAR score of 81 compares with an average of 76 across the 10 that report a score; it scores higher than 40% of them and lower than 40%. Its site EUI of 207.7 kBtu/ft² is about 14% above the average of 182.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 668,027 sq ft, it is roughly in line with the average floor area of 676,225 sq ft for those buildings. It was built in 1966, 8 years earlier than the group's average year built (1974). Across all 24 jurisdictions BuildingCensus covers, the 748 hospital (general medical & surgical) buildings average an ENERGY STAR score of 59 and a site EUI of 238.7 kBtu/ft².
How has Uw Northwest Hospital & Medical Center - Campus's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Uw Northwest Hospital & Medical Center - Campus, covering report years 2015–2025. Its ENERGY STAR score went from 88 in 2015 to 81 in 2025 (-7 points); its best year on file was 2015, at 88. Site EUI moved from 194.8 kBtu/ft² (2015) to 207.7 kBtu/ft² (2025), an 7% increase. Reported emissions went from 2,989 tCO₂e to 2,983 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 falls in band B — above median (70–84). 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. Uw Northwest Hospital & Medical Center - Campus's 207.7 kBtu/ft² across 668,027 sq ft works out to about 138.7 billion Btu (40,663 MWh-equivalent) in 2025. Its source EUI of 384.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 15,327,420 kWh of electricity and 619,327 therms of natural gas for the year.
Which law requires Uw Northwest Hospital & Medical Center - Campus to report its energy use?
Uw Northwest Hospital & Medical Center - Campus 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:23071:2025). 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 hospital (general medical & surgical) buildings in Seattle
- Swedish Medical Center Cherry Hill - Campus· 597,519 sq ft · score 73 (B)
- Swedish Medical Center Ballard - Campus· 451,526 sq ft · score 38 (D)
- Virginia Mason - Central Pavilion· 374,466 sq ft · score 81 (B)
- Seattle Children's Hospital Building Hope· 330,000 sq ft · score 98 (A)
- Virginia Mason - Jones Pavilion· 267,470 sq ft · score 52 (D)
- Virginia Mason - Buck Pavilion· 158,738 sq ft
- 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 Uw Northwest Hospital & Medical Center - Campus's energy grade?
Uw Northwest Hospital & Medical Center - Campus scores 81 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Uw Northwest Hospital & Medical Center - Campus use?
Its 2025 site energy-use intensity was 207.7 kBtu/ft² (384.6 kBtu/ft² source) across 668,027 sq ft, including 15,327,420 kWh of electricity and 619,327 therms of natural gas.
What are Uw Northwest Hospital & Medical Center - Campus's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is Uw Northwest Hospital & Medical Center - Campus?
Uw Northwest Hospital & Medical Center - Campus is at 1550 N 115TH ST, in Seattle, Washington 98133. Its coordinates are 47.71425, -122.33689 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Uw Northwest Hospital & Medical Center - Campus and when was it built?
Uw Northwest Hospital & Medical Center - Campus has 668,027 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1966 as its year built. It is classed as hospital (general medical & surgical).
Is Uw Northwest Hospital & Medical Center - Campus 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, “Uw Northwest Hospital & Medical Center - Campus, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/uw-northwest-hospital-medical-center-campus-ae1f3989 (data as of October 2, 2026).