U Place Apartments
Multifamily Housing in Seattle, WA · 4609 UNION BAY PL NE · 98105
At a glance
U Place Apartments is a 185,296-square-foot multifamily housing building at 4609 UNION BAY PL NE in Seattle, Washington, built in 2019.
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 | 822,638 kWh |
| Gross floor area | 185,296 sq ft |
| Source record | seattle:50719:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | — | — | — | |
| 2023 | — | 26.6 kBtu/ft² | 123 tCO₂e | |
| 2022 | — | 24.8 kBtu/ft² | 111 tCO₂e | |
| 2021 | 100 | 21.1 kBtu/ft² | 93 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 4609 UNION BAY PL NE
- City
- Seattle
- State
- Washington
- ZIP
- 98105
- Coordinates
- 47.66254, -122.29498
Within ~1 km
Nearby benchmarked buildings
- Trailside - Student Housingscore —
Multifamily Housing · 448,353 sq ft
Parking · 361,398 sq ft
- Arista Residencesscore 99
Multifamily Housing · 333,773 sq ft
- Nordheim Court (Uw Housing)score 98
Multifamily Housing · 321,333 sq ft
Parking · 305,025 sq ft
- Broadstone Strata Apartmentsscore 99
Multifamily Housing · 290,000 sq ft
See also: most efficient in Seattle · biggest emitters
How does U Place Apartments 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 185,296 sq ft, it is about twice the average floor area of 86,468 sq ft for those buildings. It was built in 2019, 36 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 U Place Apartments's energy performance changed over time?
BuildingCensus holds 5 Seattle disclosures for U Place Apartments, covering report years 2021–2025. Site EUI moved from 21.1 kBtu/ft² (2021) to 26.6 kBtu/ft² (2023), an 26% increase. Reported emissions went from 93 tCO₂e to 123 tCO₂e over the same span (up 32%).
Which law requires U Place Apartments to report its energy use?
U Place Apartments 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:50719:2025). 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
- Elan Uptown Flats - West· 185,048 sq ft · score 100 (A)
- The Broadway On Broadway Bldg· 184,980 sq ft · score 98 (A)
- East Union Apartments· 184,974 sq ft · score 21 (D)
- Guinevere· 183,524 sq ft · score 97 (A)
- Sanford Hildebrandt Towers I· 183,392 sq ft · score 87 (A)
- Views At Madison Vista Bldgs I & Ii· 183,379 sq ft · score 98 (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 U Place Apartments's energy grade?
U Place Apartments did not report an ENERGY STAR score in its 2025 disclosure.
How much energy does U Place Apartments use?
No energy-use intensity was reported for 2025.
What are U Place Apartments's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is U Place Apartments?
U Place Apartments is at 4609 UNION BAY PL NE, in Seattle, Washington 98105. Its coordinates are 47.66254, -122.29498 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is U Place Apartments and when was it built?
U Place Apartments has 185,296 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2019 as its year built. It is classed as multifamily housing.
Is U Place Apartments 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).
Working with Seattle building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “U Place Apartments, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/u-place-apartments-16a94b39 (data as of October 2, 2026).