Centennial Tower Apts
Multifamily Housing in Seattle, WA · 2515 4TH AVE · 98121
At a glance
Centennial Tower Apts is a 321,050-square-foot multifamily housing building at 2515 4TH AVE in Seattle, Washington, built in 1990.
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 | 2,145,024 kWh |
| Gross floor area | 321,050 sq ft |
| Source record | seattle:19884:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | 79 | +11 | 44.4 kBtu/ft² | 183 tCO₂e |
| 2023 | 68 | -1 | 51.3 kBtu/ft² | 249 tCO₂e |
| 2022 | 69 | -2 | 53.7 kBtu/ft² | 283 tCO₂e |
| 2021 | 71 | +23 | 51.8 kBtu/ft² | 264 tCO₂e |
| 2020 | 48 | +1 | 64.5 kBtu/ft² | 420 tCO₂e |
| 2019 | 47 | +12 | 63.4 kBtu/ft² | 392 tCO₂e |
| 2018 | 35 | -9 | 69.8 kBtu/ft² | 460 tCO₂e |
| 2017 | 44 | +12 | 61.6 kBtu/ft² | 320 tCO₂e |
| 2016 | 32 | -12 | 62.6 kBtu/ft² | 359 tCO₂e |
| 2015 | 44 | 56.2 kBtu/ft² | 293 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
- 2515 4TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98121
- Coordinates
- 47.61678, -122.34698
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Centennial Tower Apts 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 321,050 sq ft, it is about 271% above the average floor area of 86,468 sq ft for those buildings. It was built in 1990, 7 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 Centennial Tower Apts's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Centennial Tower Apts, covering report years 2015–2025. Its ENERGY STAR score went from 44 in 2015 to 79 in 2024 (+35 points). Site EUI moved from 56.2 kBtu/ft² (2015) to 44.4 kBtu/ft² (2024), a 21% decrease. Reported emissions went from 293 tCO₂e to 183 tCO₂e over the same span (down 38%).
Which law requires Centennial Tower Apts to report its energy use?
Centennial Tower Apts 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:19884:2025). 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
- Solara Apts· 320,739 sq ft · score 83 (B)
- Griffis Belltown Apartments· 320,651 sq ft · EUI 44.8 kBtu/ft²
- Modera Slu· 320,566 sq ft · score 99 (A)
- Cirrus· 319,481 sq ft · score 76 (B)
- Odin Apartments· 318,835 sq ft · score 100 (A)
- Ava Ballard Apartments· 317,814 sq ft · score 100 (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 Centennial Tower Apts's energy grade?
Centennial Tower Apts did not report an ENERGY STAR score in its 2025 disclosure.
How much energy does Centennial Tower Apts use?
No energy-use intensity was reported for 2025.
What are Centennial Tower Apts's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is Centennial Tower Apts?
Centennial Tower Apts is at 2515 4TH AVE, in Seattle, Washington 98121. Its coordinates are 47.61678, -122.34698 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Centennial Tower Apts and when was it built?
Centennial Tower Apts has 321,050 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1990 as its year built. It is classed as multifamily housing.
Is Centennial Tower Apts 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, “Centennial Tower Apts, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/centennial-tower-apts-2fff3fc8 (data as of October 2, 2026).