BuildingCensus
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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.

ENERGY STAR score
87
band A · 2025
Site EUI
23.2
kBtu/ft²
GHG emissions
53
tCO₂e
GHG intensity
0.3
kgCO₂e/ft²
Floor area
166,017
sq ft
Year built
2005
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 score87 (band A)
Site EUI23.2 kBtu/ft²
Source EUI58.0 kBtu/ft²
GHG emissions53 tCO₂e
GHG intensity0.3 kgCO₂e/ft²
Electricity933,058 kWh
Natural gas6,745 therms
Gross floor area166,017 sq ft
Source recordseattle:290:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest87+123.2 kBtu/ft²53 tCO₂e
202486±024.2 kBtu/ft²59 tCO₂e
202386+724.4 kBtu/ft²58 tCO₂e
202279+528.1 kBtu/ft²59 tCO₂e
202174-2230.2 kBtu/ft²67 tCO₂e
202096+1117.3 kBtu/ft²40 tCO₂e
201985+325.4 kBtu/ft²56 tCO₂e
201882-226.8 kBtu/ft²56 tCO₂e
201784-729.2 kBtu/ft²74 tCO₂e
201691-228.3 kBtu/ft²66 tCO₂e
20159327.0 kBtu/ft²60 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.

Program details →

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
State
Washington
ZIP
98116
Coordinates
47.57298, -122.39028

Within ~1 km

Nearby benchmarked buildings

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

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).