Wallingford 45 Condominium
Multifamily Housing in Seattle, WA · 1601 N 45TH ST · 98103
At a glance
Wallingford 45 Condominium is a 33,272-square-foot multifamily housing building at 1601 N 45TH ST in Seattle, Washington, built in 2017.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 215,839 kWh |
| Gross floor area | 33,272 sq ft |
| Source record | seattle:50663:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | — | — | 5 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | — | — | — |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1601 N 45TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98103
- Coordinates
- 47.66125, -122.33830
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 45 Condominium compare with other multifamily housing buildings in Seattle?
The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide.
At 33,272 sq ft, it is about 62% below the average floor area of 86,468 sq ft for those buildings. It was built in 2017, 34 years later than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Wallingford 45 Condominium's energy performance changed over time?
BuildingCensus holds 6 Seattle disclosures for Wallingford 45 Condominium, covering report years 2020–2025. None of those years carry an ENERGY STAR score or site EUI.
Which law requires Wallingford 45 Condominium to report its energy use?
Wallingford 45 Condominium 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:50663:2025). 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 multifamily housing buildings in Seattle
- Alder House· 33,192 sq ft · score 33 (D)
- West Republican Place· 33,183 sq ft · score 100 (A)
- 500 West Olympic Place Coop· 33,164 sq ft · score 98 (A)
- Vivid· 33,114 sq ft · score 97 (A)
- California Place· 33,084 sq ft · score 60 (C)
- Harbor Pointe Condominium· 33,054 sq ft · score 87 (A)
- Multifamily Housing buildings in Seattle· 1,971 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 Wallingford 45 Condominium's energy grade?
Wallingford 45 Condominium did not report an ENERGY STAR score in its 2025 disclosure.
How much energy does Wallingford 45 Condominium use?
No energy-use intensity was reported for 2025.
What are Wallingford 45 Condominium's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is Wallingford 45 Condominium?
Wallingford 45 Condominium is at 1601 N 45TH ST, in Seattle, Washington 98103. Its coordinates are 47.66125, -122.33830 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Wallingford 45 Condominium and when was it built?
Wallingford 45 Condominium has 33,272 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2017 as its year built. It is classed as multifamily housing.
Is Wallingford 45 Condominium 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 45 Condominium, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/wallingford-45-condominium-6af50ba8 (data as of October 2, 2026).