Lake City - Seattle Public Library
Library in Seattle, WA · 12501 28TH AVE NE · 98125
At a glance
Lake City - Seattle Public Library is a 24,697-square-foot library at 12501 28TH AVE NE in Seattle, Washington, built in 1965. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 75.5 kBtu/ft² and 45 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 75.5 kBtu/ft² |
| Source EUI | 140.0 kBtu/ft² |
| GHG emissions | 45 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 203,893 kWh |
| Natural gas | 8,147 therms |
| Gross floor area | 24,697 sq ft |
| Source record | seattle:33408:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 75.5 kBtu/ft² | 45 tCO₂e | |
| 2024 | — | 74.7 kBtu/ft² | 49 tCO₂e | |
| 2023 | — | 67.4 kBtu/ft² | 42 tCO₂e | |
| 2022 | — | 76.5 kBtu/ft² | 47 tCO₂e | |
| 2021 | — | 79.3 kBtu/ft² | 51 tCO₂e | |
| 2020 | — | 68.5 kBtu/ft² | 46 tCO₂e | |
| 2019 | — | 76.2 kBtu/ft² | 46 tCO₂e | |
| 2018 | — | 62.6 kBtu/ft² | 35 tCO₂e | |
| 2017 | — | 73.6 kBtu/ft² | 35 tCO₂e | |
| 2016 | — | 64.7 kBtu/ft² | 28 tCO₂e | |
| 2015 | — | 64.5 kBtu/ft² | 28 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
- 12501 28TH AVE NE
- City
- Seattle
- State
- Washington
- ZIP
- 98125
- Coordinates
- 47.71986, -122.29809
Within ~1 km
Nearby benchmarked buildings
- Solara Aptsscore 83
Multifamily Housing · 320,739 sq ft
- Fred Meyer Lake Cityscore 95
Retail Store · 308,965 sq ft
- Polaris At Lake City Condosscore 96
Multifamily Housing · 292,309 sq ft
- Cedar Park Apartmentsscore 94
Multifamily Housing · 193,691 sq ft
- Origin Apartmentsscore 99
Multifamily Housing · 183,212 sq ft
- Lake City Court (Sha)score —
Multifamily Housing · 138,121 sq ft
See also: most efficient in Seattle · biggest emitters
How does Lake City - Seattle Public Library compare with other buildings in Seattle?
The latest disclosures cover 3,871 benchmarked buildings in Seattle. Its site EUI of 75.5 kBtu/ft² is about 59% above the average of 47.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about 124% above the group average of 1.0 kgCO₂e/ft².
At 24,697 sq ft, it is about 78% below the average floor area of 112,467 sq ft for those buildings. It was built in 1965, 10 years earlier than the group's average year built (1975).
How has Lake City - Seattle Public Library's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Lake City - Seattle Public Library, covering report years 2015–2025. Site EUI moved from 64.5 kBtu/ft² (2015) to 75.5 kBtu/ft² (2025), an 17% increase. Reported emissions went from 28 tCO₂e to 45 tCO₂e over the same span (up 62%).
What does a site EUI of 75.5 kBtu/ft² mean?
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. Lake City - Seattle Public Library's 75.5 kBtu/ft² across 24,697 sq ft works out to about 1.9 billion Btu (546 MWh-equivalent) in 2025. Its source EUI of 140.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 203,893 kWh of electricity and 8,147 therms of natural gas for the year.
Which law requires Lake City - Seattle Public Library to report its energy use?
Lake City - Seattle Public Library 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:33408:2025). 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 library buildings in Seattle
Frequently asked questions
What is Lake City - Seattle Public Library's energy grade?
Lake City - Seattle Public Library did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 75.5 kBtu/ft².
How much energy does Lake City - Seattle Public Library use?
Its 2025 site energy-use intensity was 75.5 kBtu/ft² (140.0 kBtu/ft² source) across 24,697 sq ft, including 203,893 kWh of electricity and 8,147 therms of natural gas.
What are Lake City - Seattle Public Library's carbon emissions?
Lake City - Seattle Public Library reported 45 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2025.
Where is Lake City - Seattle Public Library?
Lake City - Seattle Public Library is at 12501 28TH AVE NE, in Seattle, Washington 98125. Its coordinates are 47.71986, -122.29809 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Lake City - Seattle Public Library and when was it built?
Lake City - Seattle Public Library has 24,697 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1965 as its year built. It is classed as library.
Is Lake City - Seattle Public Library 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, “Lake City - Seattle Public Library, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/lake-city-seattle-public-library-32983ddb (data as of October 2, 2026).