Madison Middle (Sps-District)
K-12 School in Seattle, WA · 3429 45TH AVE SW · 98116
At a glance
Madison Middle (Sps-District) is a 166,017-square-foot K-12 school at 3429 45TH AVE SW in Seattle, Washington, built in 2005. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 23.2 kBtu/ft² and 53 tCO₂e of greenhouse-gas emissions. That score is higher than 73% 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 | 87 (band A) |
| Site EUI | 23.2 kBtu/ft² |
| Source EUI | 58.0 kBtu/ft² |
| GHG emissions | 53 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 933,058 kWh |
| Natural gas | 6,745 therms |
| Gross floor area | 166,017 sq ft |
| Source record | seattle:290:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 87 | +1 | 23.2 kBtu/ft² | 53 tCO₂e |
| 2024 | 86 | ±0 | 24.2 kBtu/ft² | 59 tCO₂e |
| 2023 | 86 | +7 | 24.4 kBtu/ft² | 58 tCO₂e |
| 2022 | 79 | +5 | 28.1 kBtu/ft² | 59 tCO₂e |
| 2021 | 74 | -22 | 30.2 kBtu/ft² | 67 tCO₂e |
| 2020 | 96 | +11 | 17.3 kBtu/ft² | 40 tCO₂e |
| 2019 | 85 | +3 | 25.4 kBtu/ft² | 56 tCO₂e |
| 2018 | 82 | -2 | 26.8 kBtu/ft² | 56 tCO₂e |
| 2017 | 84 | -7 | 29.2 kBtu/ft² | 74 tCO₂e |
| 2016 | 91 | -2 | 28.3 kBtu/ft² | 66 tCO₂e |
| 2015 | 93 | 27.0 kBtu/ft² | 60 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
- 3429 45TH AVE SW
- City
- Seattle
- State
- Washington
- ZIP
- 98116
- Coordinates
- 47.57298, -122.39028
Within ~1 km
Nearby benchmarked buildings
K-12 School · 208,981 sq ft
- Luna Apts & Admiral Pccscore 100
Multifamily Housing · 169,400 sq ft
- Springline Apartmentsscore 93
Multifamily Housing · 161,999 sq ft
K-12 School · 94,294 sq ft
- Element 42score 96
Multifamily Housing · 63,597 sq ft
K-12 School · 61,183 sq ft
See also: most efficient in Seattle · biggest emitters
How does Madison Middle (Sps-District) 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. Madison Middle (Sps-District)'s ENERGY STAR score of 87 compares with an average of 71 across the 152 that report a score; it scores higher than 73% of them and lower than 24%. Its site EUI of 23.2 kBtu/ft² is about 39% below the average of 38.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 71% below the group average of 1.1 kgCO₂e/ft².
At 166,017 sq ft, it is about twice the average floor area of 79,329 sq ft for those buildings. It was built in 2005, 35 years later 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 Madison Middle (Sps-District)'s energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Madison Middle (Sps-District), covering report years 2015–2025. Its ENERGY STAR score went from 93 in 2015 to 87 in 2025 (-6 points); its best year on file was 2020, at 96. Site EUI moved from 27.0 kBtu/ft² (2015) to 23.2 kBtu/ft² (2025), a 14% decrease. Reported emissions went from 60 tCO₂e to 53 tCO₂e over the same span (down 12%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 falls in band A — high performer (85–100). 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. Madison Middle (Sps-District)'s 23.2 kBtu/ft² across 166,017 sq ft works out to about 3.9 billion Btu (1,129 MWh-equivalent) in 2025. Its source EUI of 58.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 933,058 kWh of electricity and 6,745 therms of natural gas for the year.
Which law requires Madison Middle (Sps-District) to report its energy use?
Madison Middle (Sps-District) 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:290:2025). 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
- Seattle Academy Campus· 164,074 sq ft · score 17 (D)
- Robert Eagle Staff Middle School (Sps-District)· 162,182 sq ft · score 73 (B)
- Jane Addams Middle (Sps-District)· 160,645 sq ft · score 77 (B)
- Whitman Middle (Sps-District)· 160,270 sq ft · score 91 (A)
- Boren Stem K-8 (Sps-District)· 145,341 sq ft · score 76 (B)
- Van Asselt Bldg Renovated (Sps-District)· 143,516 sq ft · score 91 (A)
- 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 Madison Middle (Sps-District)'s energy grade?
Madison Middle (Sps-District) scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Madison Middle (Sps-District) use?
Its 2025 site energy-use intensity was 23.2 kBtu/ft² (58.0 kBtu/ft² source) across 166,017 sq ft, including 933,058 kWh of electricity and 6,745 therms of natural gas.
What are Madison Middle (Sps-District)'s carbon emissions?
Madison Middle (Sps-District) reported 53 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is Madison Middle (Sps-District)?
Madison Middle (Sps-District) is at 3429 45TH AVE SW, in Seattle, Washington 98116. Its coordinates are 47.57298, -122.39028 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Madison Middle (Sps-District) and when was it built?
Madison Middle (Sps-District) has 166,017 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2005 as its year built. It is classed as K-12 school.
Is Madison Middle (Sps-District) 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, “Madison Middle (Sps-District), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/madison-middle-sps-district-8d73e59f (data as of October 2, 2026).