St Catherine School
K-12 School in Seattle, WA · 8524 8TH AVE NE · 98115
At a glance
St Catherine School is a 23,923-square-foot K-12 school at 8524 8TH AVE NE in Seattle, Washington, built in 1931. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 14 out of 100 (grade D), a site energy-use intensity of 68.2 kBtu/ft² and 55 tCO₂e of greenhouse-gas emissions. That score is higher than 3% of the 152 scored K-12 school buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 14 (band D) |
| Site EUI | 68.2 kBtu/ft² |
| Source EUI | 117.4 kBtu/ft² |
| GHG emissions | 55 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 183,274 kWh |
| Natural gas | 10,065 therms |
| Gross floor area | 23,923 sq ft |
| Source record | seattle:23956:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 14 | -9 | 68.2 kBtu/ft² | 55 tCO₂e |
| 2024 | 23 | -16 | 57.7 kBtu/ft² | 46 tCO₂e |
| 2023 | 39 | -6 | 48.6 kBtu/ft² | 38 tCO₂e |
| 2022 | 45 | +9 | 48.2 kBtu/ft² | 41 tCO₂e |
| 2021 | 36 | -34 | 55.5 kBtu/ft² | 52 tCO₂e |
| 2020 | 70 | +17 | 32.8 kBtu/ft² | 26 tCO₂e |
| 2019 | 53 | +5 | 35.9 kBtu/ft² | 24 tCO₂e |
| 2018 | 48 | -2 | 38.4 kBtu/ft² | 27 tCO₂e |
| 2017 | 50 | -19 | 39.4 kBtu/ft² | 28 tCO₂e |
| 2016 | 69 | -3 | 33.7 kBtu/ft² | 19 tCO₂e |
| 2015 | 72 | 36.5 kBtu/ft² | 26 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
- 8524 8TH AVE NE
- City
- Seattle
- State
- Washington
- ZIP
- 98115
- Coordinates
- 47.69112, -122.32011
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does St Catherine School compare with other K-12 school buildings in Seattle?
The latest disclosures cover 153 K-12 school buildings in Seattle, out of 3,871 buildings citywide. St Catherine School's ENERGY STAR score of 14 compares with an average of 71 across the 152 that report a score; it scores higher than 3% of them and lower than 96%. Its site EUI of 68.2 kBtu/ft² is about 78% above the average of 38.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.3 kgCO₂e/ft² is about twice the group average of 1.1 kgCO₂e/ft².
At 23,923 sq ft, it is about 70% below the average floor area of 79,329 sq ft for those buildings. It was built in 1931, 39 years earlier than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has St Catherine School's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for St Catherine School, covering report years 2015–2025. Its ENERGY STAR score went from 72 in 2015 to 14 in 2025 (-58 points); its best year on file was 2015, at 72. Site EUI moved from 36.5 kBtu/ft² (2015) to 68.2 kBtu/ft² (2025), an 87% increase. Reported emissions went from 26 tCO₂e to 55 tCO₂e over the same span (up 112%).
What does an ENERGY STAR score of 14 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 14 means the building performs better than about 14% of its national peers. BuildingCensus bands the score into report-card grades; 14 falls in band D — lowest band (1–54). It sits 61 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. St Catherine School's 68.2 kBtu/ft² across 23,923 sq ft works out to about 1.6 billion Btu (478 MWh-equivalent) in 2025. Its source EUI of 117.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 183,274 kWh of electricity and 10,065 therms of natural gas for the year.
Which law requires St Catherine School to report its energy use?
St Catherine School 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:23956:2025). 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 K-12 school buildings in Seattle
- Summit Atlas Charter School· 23,772 sq ft · score 87 (A)
- Christ The King Middle School· 23,222 sq ft · score 82 (B)
- Asb School· 23,190 sq ft · score 17 (D)
- Spruce Street School· 22,860 sq ft · score 41 (D)
- Social Security Administration· 21,600 sq ft · EUI 12.7 kBtu/ft²
- St Mary Giddens School· 21,592 sq ft · score 27 (D)
- K-12 School buildings in Seattle· 153 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 St Catherine School's energy grade?
St Catherine School scores 14 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 St Catherine School use?
Its 2025 site energy-use intensity was 68.2 kBtu/ft² (117.4 kBtu/ft² source) across 23,923 sq ft, including 183,274 kWh of electricity and 10,065 therms of natural gas.
What are St Catherine School's carbon emissions?
St Catherine School reported 55 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2025.
Where is St Catherine School?
St Catherine School is at 8524 8TH AVE NE, in Seattle, Washington 98115. Its coordinates are 47.69112, -122.32011 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is St Catherine School and when was it built?
St Catherine School has 23,923 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1931 as its year built. It is classed as K-12 school.
Is St Catherine School 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, “St Catherine School, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/st-catherine-school-682e05d6 (data as of October 2, 2026).