Wallingford Center
Enclosed Mall in Seattle, WA · 1815 N 45TH ST · 98103
At a glance
Wallingford Center is a 53,002-square-foot enclosed mall building at 1815 N 45TH ST in Seattle, Washington, built in 1904. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 56.6 kBtu/ft² and 62 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 56.6 kBtu/ft² |
| Source EUI | 124.8 kBtu/ft² |
| GHG emissions | 62 tCO₂e |
| GHG intensity | 1.2 kgCO₂e/ft² |
| Electricity | 561,413 kWh |
| Natural gas | 9,924 therms |
| Gross floor area | 53,002 sq ft |
| Source record | seattle:601:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 56.6 kBtu/ft² | 62 tCO₂e | |
| 2024 | — | 53.4 kBtu/ft² | 61 tCO₂e | |
| 2023 | — | — | 11 tCO₂e | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | 74 | +8 | 55.4 kBtu/ft² | 61 tCO₂e |
| 2019 | 66 | +11 | 58.4 kBtu/ft² | 58 tCO₂e |
| 2018 | 55 | -10 | 61.8 kBtu/ft² | 53 tCO₂e |
| 2017 | 65 | -10 | 60.2 kBtu/ft² | 62 tCO₂e |
| 2016 | 75 | -7 | 64.4 kBtu/ft² | 61 tCO₂e |
| 2015 | 82 | 58.6 kBtu/ft² | 47 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
- 1815 N 45TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98103
- Coordinates
- 47.66113, -122.33572
Within ~1 km
Nearby benchmarked buildings
- Broadstone Vinscore 83
Multifamily Housing · 824,678 sq ft
- Lincoln High (Sps-District)score 93
K-12 School · 241,066 sq ft
- University House - Wallingfordscore 54
Multifamily Housing · 217,146 sq ft
- Prescott Wallingford Apartmentsscore 100
Multifamily Housing · 198,233 sq ft
- Smith & Burnsscore —
Multifamily MR (5-9) · 175,844 sq ft
- Stonehedge Apartmentsscore 97
Multifamily Housing · 158,180 sq ft
See also: most efficient in Seattle · biggest emitters
How does Wallingford Center compare with other buildings in Seattle?
The latest disclosures cover 3,871 benchmarked buildings in Seattle. Its site EUI of 56.6 kBtu/ft² is about 19% 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 1.2 kgCO₂e/ft² is about 20% above the group average of 1.0 kgCO₂e/ft².
At 53,002 sq ft, it is about half of the average floor area of 112,467 sq ft for those buildings. It was built in 1904, 71 years earlier than the group's average year built (1975).
How has Wallingford Center's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Wallingford Center, covering report years 2015–2025. Its ENERGY STAR score went from 82 in 2015 to 74 in 2020 (-8 points); its best year on file was 2015, at 82. Site EUI moved from 58.6 kBtu/ft² (2015) to 56.6 kBtu/ft² (2025), a 3% decrease. Reported emissions went from 47 tCO₂e to 62 tCO₂e over the same span (up 32%).
What does a site EUI of 56.6 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. Wallingford Center's 56.6 kBtu/ft² across 53,002 sq ft works out to about 3 billion Btu (879 MWh-equivalent) in 2025. Its source EUI of 124.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 561,413 kWh of electricity and 9,924 therms of natural gas for the year.
Which law requires Wallingford Center to report its energy use?
Wallingford Center 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:601:2025). 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 enclosed mall buildings in Seattle
Frequently asked questions
What is Wallingford Center's energy grade?
Wallingford Center did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 56.6 kBtu/ft².
How much energy does Wallingford Center use?
Its 2025 site energy-use intensity was 56.6 kBtu/ft² (124.8 kBtu/ft² source) across 53,002 sq ft, including 561,413 kWh of electricity and 9,924 therms of natural gas.
What are Wallingford Center's carbon emissions?
Wallingford Center reported 62 tCO₂e of greenhouse-gas emissions (1.2 kgCO₂e/ft²) for 2025.
Where is Wallingford Center?
Wallingford Center is at 1815 N 45TH ST, in Seattle, Washington 98103. Its coordinates are 47.66113, -122.33572 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Wallingford Center and when was it built?
Wallingford Center has 53,002 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1904 as its year built. It is classed as enclosed mall.
Is Wallingford Center 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, “Wallingford Center, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/wallingford-center-c5482511 (data as of October 2, 2026).