Seattle Prep - Campus
K-12 School in Seattle, WA · 2400 11TH AVE E · 98102
At a glance
Seattle Prep - Campus is a 83,882-square-foot K-12 school at 2400 11TH AVE E in Seattle, Washington, built in 1905. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 46.2 kBtu/ft² and 84 tCO₂e of greenhouse-gas emissions. That score is higher than 20% 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 | 58 (band C) |
| Site EUI | 46.2 kBtu/ft² |
| Source EUI | 89.7 kBtu/ft² |
| GHG emissions | 84 tCO₂e |
| GHG intensity | 1.3 kgCO₂e/ft² |
| Electricity | 442,807 kWh |
| Natural gas | 14,514 therms |
| Gross floor area | 83,882 sq ft |
| Source record | seattle:21796:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 58 | +14 | 46.2 kBtu/ft² | 84 tCO₂e |
| 2024 | 44 | +2 | 52.6 kBtu/ft² | 94 tCO₂e |
| 2023 | 42 | -23 | 52.4 kBtu/ft² | 89 tCO₂e |
| 2022 | 65 | -9 | 40.7 kBtu/ft² | 64 tCO₂e |
| 2021 | 74 | +11 | 39.8 kBtu/ft² | 75 tCO₂e |
| 2020 | 63 | +25 | 36.4 kBtu/ft² | 110 tCO₂e |
| 2019 | 38 | -6 | 48.3 kBtu/ft² | 149 tCO₂e |
| 2018 | 44 | -28 | 46.3 kBtu/ft² | 147 tCO₂e |
| 2017 | 72 | -6 | 37.8 kBtu/ft² | 105 tCO₂e |
| 2016 | 78 | +6 | 30.5 kBtu/ft² | 73 tCO₂e |
| 2015 | 72 | 30.3 kBtu/ft² | 63 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
- 2400 11TH AVE E
- City
- Seattle
- State
- Washington
- ZIP
- 98102
- Coordinates
- 47.64133, -122.31679
Within ~1 km
Nearby benchmarked buildings
- 1616 Eastlake Buildingscore —
Laboratory · 281,306 sq ft
- Tops K-8 (Sps-District)score 70
K-12 School · 95,501 sq ft
Parking · 85,750 sq ft
K-12 School · 63,600 sq ft
Multifamily Housing · 62,504 sq ft
- Rubyscore 90
Multifamily Housing · 57,486 sq ft
See also: most efficient in Seattle · biggest emitters
How does Seattle Prep - Campus 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. Seattle Prep - Campus's ENERGY STAR score of 58 compares with an average of 71 across the 152 that report a score; it scores higher than 20% of them and lower than 78%. Its site EUI of 46.2 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 1.3 kgCO₂e/ft² is about 18% above the group average of 1.1 kgCO₂e/ft².
At 83,882 sq ft, it is roughly in line with the average floor area of 79,329 sq ft for those buildings. It was built in 1905, 65 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 Seattle Prep - Campus's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Seattle Prep - Campus, covering report years 2015–2025. Its ENERGY STAR score went from 72 in 2015 to 58 in 2025 (-14 points); its best year on file was 2016, at 78. Site EUI moved from 30.3 kBtu/ft² (2015) to 46.2 kBtu/ft² (2025), an 52% increase. Reported emissions went from 63 tCO₂e to 84 tCO₂e over the same span (up 32%).
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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. Seattle Prep - Campus's 46.2 kBtu/ft² across 83,882 sq ft works out to about 3.9 billion Btu (1,136 MWh-equivalent) in 2025. Its source EUI of 89.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 442,807 kWh of electricity and 14,514 therms of natural gas for the year.
Which law requires Seattle Prep - Campus to report its energy use?
Seattle Prep - 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:21796:2025). 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
- Arbor Heights Elementary School (Sps-District)· 78,972 sq ft · score 96 (A)
- Magnolia Elementary (Sps-District)· 78,880 sq ft · score 86 (A)
- Emerson Elementary School (Sps-District)· 78,804 sq ft · score 57 (C)
- Wing Luke Elementary School (Sps-District)· 77,636 sq ft · score 93 (A)
- Temple De Hirsch· 76,127 sq ft · score 87 (A)
- Dunlap Elementary School (Sps-District)· 75,605 sq ft · score 68 (C)
- 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 Seattle Prep - Campus's energy grade?
Seattle Prep - Campus scores 58 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Seattle Prep - Campus use?
Its 2025 site energy-use intensity was 46.2 kBtu/ft² (89.7 kBtu/ft² source) across 83,882 sq ft, including 442,807 kWh of electricity and 14,514 therms of natural gas.
What are Seattle Prep - Campus's carbon emissions?
Seattle Prep - Campus reported 84 tCO₂e of greenhouse-gas emissions (1.3 kgCO₂e/ft²) for 2025.
Where is Seattle Prep - Campus?
Seattle Prep - Campus is at 2400 11TH AVE E, in Seattle, Washington 98102. Its coordinates are 47.64133, -122.31679 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Seattle Prep - Campus and when was it built?
Seattle Prep - Campus has 83,882 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1905 as its year built. It is classed as K-12 school.
Is Seattle Prep - 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, “Seattle Prep - Campus, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/seattle-prep-campus-e8f121d4 (data as of October 2, 2026).