At a glance
City Place Iii (Obidos/Rufus) is a 438,093-square-foot office building at 551 BOREN AVE N in Seattle, Washington, built in 2010. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 50.2 kBtu/ft² and 214 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 50.2 kBtu/ft² |
| Source EUI | 124.4 kBtu/ft² |
| GHG emissions | 214 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 3,519,900 kWh |
| Natural gas | 27,140 therms |
| Gross floor area | 438,093 sq ft |
| Source record | seattle:100:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 50.2 kBtu/ft² | 214 tCO₂e | |
| 2024 | 91 | +7 | 43.7 kBtu/ft² | 181 tCO₂e |
| 2023 | 84 | -2 | 47.1 kBtu/ft² | 182 tCO₂e |
| 2022 | 86 | -5 | 50.3 kBtu/ft² | 113 tCO₂e |
| 2021 | 91 | 43.0 kBtu/ft² | 109 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | 91 | +1 | 52.6 kBtu/ft² | 212 tCO₂e |
| 2018 | 90 | +3 | 53.9 kBtu/ft² | 220 tCO₂e |
| 2017 | 87 | -9 | 57.0 kBtu/ft² | 245 tCO₂e |
| 2016 | 96 | ±0 | 48.0 kBtu/ft² | 124 tCO₂e |
| 2015 | 96 | 46.3 kBtu/ft² | 116 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
- 551 BOREN AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62424, -122.33646
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does City Place Iii (Obidos/Rufus) compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 50.2 kBtu/ft² is about 12% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.7 kgCO₂e/ft² is roughly in line with the group average of 0.7 kgCO₂e/ft².
At 438,093 sq ft, it is about 123% above the average floor area of 196,452 sq ft for those buildings. It was built in 2010, 45 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has City Place Iii (Obidos/Rufus)'s energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for City Place Iii (Obidos/Rufus), covering report years 2015–2025. Its ENERGY STAR score went from 96 in 2015 to 91 in 2024 (-5 points); its best year on file was 2015, at 96. Site EUI moved from 46.3 kBtu/ft² (2015) to 50.2 kBtu/ft² (2025), an 8% increase. Reported emissions went from 116 tCO₂e to 214 tCO₂e over the same span (up 84%).
What does a site EUI of 50.2 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. City Place Iii (Obidos/Rufus)'s 50.2 kBtu/ft² across 438,093 sq ft works out to about 22 billion Btu (6,445 MWh-equivalent) in 2025. Its source EUI of 124.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,519,900 kWh of electricity and 27,140 therms of natural gas for the year.
Which law requires City Place Iii (Obidos/Rufus) to report its energy use?
City Place Iii (Obidos/Rufus) 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:100:2025). 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 office buildings in Seattle
- Hill 7 Office Bldg· 431,326 sq ft · score 91 (A)
- Urban Union (Amelia- Amazon Bldg)· 422,272 sq ft · score 90 (A)
- Metropolitan Park I (West) Office Bldg· 413,715 sq ft · EUI 27.8 kBtu/ft²
- Fifth & Yesler Bldg.· 413,264 sq ft · score 55 (C)
- Parkview & Waterside Campus· 404,916 sq ft · EUI 70.5 kBtu/ft²
- Third And Broad Bldg· 396,626 sq ft · score 94 (A)
- Office buildings in Seattle· 497 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 City Place Iii (Obidos/Rufus)'s energy grade?
City Place Iii (Obidos/Rufus) did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 50.2 kBtu/ft².
How much energy does City Place Iii (Obidos/Rufus) use?
Its 2025 site energy-use intensity was 50.2 kBtu/ft² (124.4 kBtu/ft² source) across 438,093 sq ft, including 3,519,900 kWh of electricity and 27,140 therms of natural gas.
What are City Place Iii (Obidos/Rufus)'s carbon emissions?
City Place Iii (Obidos/Rufus) reported 214 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2025.
Where is City Place Iii (Obidos/Rufus)?
City Place Iii (Obidos/Rufus) is at 551 BOREN AVE N, in Seattle, Washington 98109. Its coordinates are 47.62424, -122.33646 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is City Place Iii (Obidos/Rufus) and when was it built?
City Place Iii (Obidos/Rufus) has 438,093 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2010 as its year built. It is classed as office.
Is City Place Iii (Obidos/Rufus) 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, “City Place Iii (Obidos/Rufus), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/city-place-iii-obidos-rufus-f15c014e (data as of October 2, 2026).