BuildingCensus
D

Northwest Hospital & Medical Center - Medical Art Building #2

Office in Seattle, WA · 1530 N 115TH ST · 98133

At a glance

Northwest Hospital & Medical Center - Medical Art Building #2 is a 38,121-square-foot office building at 1530 N 115TH ST in Seattle, Washington, built in 1974. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 23 out of 100 (grade D), a site energy-use intensity of 65.5 kBtu/ft² and 16 tCO₂e of greenhouse-gas emissions. That score is higher than 4% of the 378 scored office buildings in Seattle.

ENERGY STAR score
23
band D · 2025
Site EUI
65.5
kBtu/ft²
GHG emissions
16
tCO₂e
GHG intensity
0.4
kgCO₂e/ft²
Floor area
38,121
sq ft
Year built
1974
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score23 (band D)
Site EUI65.5 kBtu/ft²
Source EUI183.5 kBtu/ft²
GHG emissions16 tCO₂e
GHG intensity0.4 kgCO₂e/ft²
Electricity801,840 kWh
Gross floor area38,121 sq ft
Source recordseattle:23070:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest23+265.5 kBtu/ft²16 tCO₂e
202421+167.9 kBtu/ft²17 tCO₂e
202320-669.6 kBtu/ft²17 tCO₂e
202226-1364.8 kBtu/ft²16 tCO₂e
20213954.2 kBtu/ft²13 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.

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Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
1530 N 115TH ST
State
Washington
ZIP
98133
Coordinates
47.71326, -122.33739

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

How does Northwest Hospital & Medical Center - Medical Art Building #2 compare with other office buildings in Seattle?

The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Northwest Hospital & Medical Center - Medical Art Building #2's ENERGY STAR score of 23 compares with an average of 76 across the 378 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 65.5 kBtu/ft² is about 46% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.4 kgCO₂e/ft² is about half of the group average of 0.7 kgCO₂e/ft².

At 38,121 sq ft, it is about 81% below the average floor area of 196,452 sq ft for those buildings. It was built in 1974, 9 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has Northwest Hospital & Medical Center - Medical Art Building #2's energy performance changed over time?

BuildingCensus holds 5 Seattle disclosures for Northwest Hospital & Medical Center - Medical Art Building #2, covering report years 2021–2025. Its ENERGY STAR score went from 39 in 2021 to 23 in 2025 (-16 points); its best year on file was 2021, at 39. Site EUI moved from 54.2 kBtu/ft² (2021) to 65.5 kBtu/ft² (2025), an 21% increase. Reported emissions went from 13 tCO₂e to 16 tCO₂e over the same span (up 21%).

What does an ENERGY STAR score of 23 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 23 means the building performs better than about 23% of its national peers. BuildingCensus bands the score into report-card grades; 23 falls in band D — lowest band (1–54). It sits 52 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. Northwest Hospital & Medical Center - Medical Art Building #2's 65.5 kBtu/ft² across 38,121 sq ft works out to about 2.5 billion Btu (732 MWh-equivalent) in 2025. Its source EUI of 183.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 801,840 kWh of electricity for the year.

Which law requires Northwest Hospital & Medical Center - Medical Art Building #2 to report its energy use?

Northwest Hospital & Medical Center - Medical Art Building #2 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:23070:2025). 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 office buildings in Seattle

Frequently asked questions

What is Northwest Hospital & Medical Center - Medical Art Building #2's energy grade?

Northwest Hospital & Medical Center - Medical Art Building #2 scores 23 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Northwest Hospital & Medical Center - Medical Art Building #2 use?

Its 2025 site energy-use intensity was 65.5 kBtu/ft² (183.5 kBtu/ft² source) across 38,121 sq ft, including 801,840 kWh of electricity.

What are Northwest Hospital & Medical Center - Medical Art Building #2's carbon emissions?

Northwest Hospital & Medical Center - Medical Art Building #2 reported 16 tCO₂e of greenhouse-gas emissions (0.4 kgCO₂e/ft²) for 2025.

Where is Northwest Hospital & Medical Center - Medical Art Building #2?

Northwest Hospital & Medical Center - Medical Art Building #2 is at 1530 N 115TH ST, in Seattle, Washington 98133. Its coordinates are 47.71326, -122.33739 (latitude, longitude), as published in the Building Energy Benchmarking file.

How big is Northwest Hospital & Medical Center - Medical Art Building #2 and when was it built?

Northwest Hospital & Medical Center - Medical Art Building #2 has 38,121 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1974 as its year built. It is classed as office.

Is Northwest Hospital & Medical Center - Medical Art Building #2 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, “Northwest Hospital & Medical Center - Medical Art Building #2, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/northwest-hospital-medical-center-medical-art-building-2-86ae941b (data as of October 2, 2026).