Holy Family School
K-12 School in Seattle, WA · 9643 20TH AVE SW · 98106
At a glance
Holy Family School is a 42,975-square-foot K-12 school at 9643 20TH AVE SW in Seattle, Washington, built in 1924. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 46.5 kBtu/ft² and 40 tCO₂e of greenhouse-gas emissions. That score is higher than 40% 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 | 73 (band B) |
| Site EUI | 46.5 kBtu/ft² |
| Source EUI | 68.5 kBtu/ft² |
| GHG emissions | 40 tCO₂e |
| GHG intensity | 1.9 kgCO₂e/ft² |
| Electricity | 70,262 kWh |
| Natural gas | 7,564 therms |
| Gross floor area | 42,975 sq ft |
| Source record | seattle:23040:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 73 | +1 | 46.5 kBtu/ft² | 40 tCO₂e |
| 2024 | 72 | -9 | 46.5 kBtu/ft² | 41 tCO₂e |
| 2023 | 81 | +6 | 41.7 kBtu/ft² | 37 tCO₂e |
| 2022 | 75 | -12 | 51.6 kBtu/ft² | 49 tCO₂e |
| 2021 | 87 | -8 | 41.2 kBtu/ft² | 39 tCO₂e |
| 2020 | 95 | +1 | 30.0 kBtu/ft² | 28 tCO₂e |
| 2019 | 94 | +1 | 33.6 kBtu/ft² | 33 tCO₂e |
| 2018 | 93 | +8 | 34.2 kBtu/ft² | 33 tCO₂e |
| 2017 | 85 | -7 | 43.0 kBtu/ft² | 41 tCO₂e |
| 2016 | 92 | +6 | 44.8 kBtu/ft² | 43 tCO₂e |
| 2015 | 86 | 51.1 kBtu/ft² | 49 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
- 9643 20TH AVE SW
- City
- Seattle
- State
- Washington
- ZIP
- 98106
- Coordinates
- 47.51698, -122.35946
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Holy Family 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. Holy Family School's ENERGY STAR score of 73 compares with an average of 71 across the 152 that report a score; it scores higher than 40% of them and lower than 57%. Its site EUI of 46.5 kBtu/ft² is about 21% 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 1.9 kgCO₂e/ft² is about 70% above the group average of 1.1 kgCO₂e/ft².
At 42,975 sq ft, it is about half of the average floor area of 79,329 sq ft for those buildings. It was built in 1924, 46 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 Holy Family School's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Holy Family School, covering report years 2015–2025. Its ENERGY STAR score went from 86 in 2015 to 73 in 2025 (-13 points); its best year on file was 2020, at 95. Site EUI moved from 51.1 kBtu/ft² (2015) to 46.5 kBtu/ft² (2025), a 9% decrease. Reported emissions went from 49 tCO₂e to 40 tCO₂e over the same span (down 18%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 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. Holy Family School's 46.5 kBtu/ft² across 42,975 sq ft works out to about 2 billion Btu (586 MWh-equivalent) in 2025. Its source EUI of 68.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 70,262 kWh of electricity and 7,564 therms of natural gas for the year.
Which law requires Holy Family School to report its energy use?
Holy Family 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:23040:2025). 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
- St Edwards School· 42,252 sq ft · score 43 (D)
- Greenlake School (Sps-District)· 42,239 sq ft · score 68 (C)
- VIEWLANDS ELEMENTARY (SPS-DISTRICT)- DEMOLISHED· 42,128 sq ft · score 64 (C)
- Rainier Valley Leadership Academy· 41,720 sq ft · score 80 (B)
- Sanislo Elementary School (Sps-District)· 41,526 sq ft · score 46 (D)
- Rainier View Elementary School (Sps-District)· 41,428 sq ft · score 72 (B)
- 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 Holy Family School's energy grade?
Holy Family School scores 73 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 Holy Family School use?
Its 2025 site energy-use intensity was 46.5 kBtu/ft² (68.5 kBtu/ft² source) across 42,975 sq ft, including 70,262 kWh of electricity and 7,564 therms of natural gas.
What are Holy Family School's carbon emissions?
Holy Family School reported 40 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 2025.
Where is Holy Family School?
Holy Family School is at 9643 20TH AVE SW, in Seattle, Washington 98106. Its coordinates are 47.51698, -122.35946 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Holy Family School and when was it built?
Holy Family School has 42,975 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1924 as its year built. It is classed as K-12 school.
Is Holy Family 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, “Holy Family School, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/holy-family-school-a8b6455b (data as of October 2, 2026).