BuildingCensus
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City Place Ii (Fiona)

Office in Seattle, WA · 500 BOREN AVE N · 98109

At a glance

City Place Ii (Fiona) is a 271,071-square-foot office building at 500 BOREN AVE N in Seattle, Washington, built in 2009. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 38.2 kBtu/ft² and 42 tCO₂e of greenhouse-gas emissions. That score is higher than 90% of the 378 scored office buildings in Seattle.

ENERGY STAR score
97
band A · 2025
Site EUI
38.2
kBtu/ft²
GHG emissions
42
tCO₂e
GHG intensity
0.2
kgCO₂e/ft²
Floor area
271,071
sq ft
Year built
2009
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score97 (band A)
Site EUI38.2 kBtu/ft²
Source EUI106.3 kBtu/ft²
GHG emissions42 tCO₂e
GHG intensity0.2 kgCO₂e/ft²
Electricity1,935,748 kWh
Natural gas705 therms
Gross floor area271,071 sq ft
Source recordseattle:473:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest97±038.2 kBtu/ft²42 tCO₂e
202497±038.3 kBtu/ft²48 tCO₂e
202397+641.1 kBtu/ft²49 tCO₂e
202291+155.7 kBtu/ft²67 tCO₂e
20219048.0 kBtu/ft²54 tCO₂e
2020———
201994±041.6 kBtu/ft²53 tCO₂e
201894+140.1 kBtu/ft²51 tCO₂e
201793-341.3 kBtu/ft²52 tCO₂e
201696±042.4 kBtu/ft²53 tCO₂e
20159642.7 kBtu/ft²53 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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
500 BOREN AVE N
State
Washington
ZIP
98109
Coordinates
47.62383, -122.33560

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

How does City Place Ii (Fiona) compare with other office buildings in Seattle?

The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. City Place Ii (Fiona)'s ENERGY STAR score of 97 compares with an average of 76 across the 378 that report a score; it scores higher than 90% of them and lower than 7%. Its site EUI of 38.2 kBtu/ft² is about 15% below the average of 44.8 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.2 kgCO₂e/ft² is about 66% below the group average of 0.7 kgCO₂e/ft².

At 271,071 sq ft, it is about 38% above the average floor area of 196,452 sq ft for those buildings. It was built in 2009, 44 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 Ii (Fiona)'s energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for City Place Ii (Fiona), covering report years 2015–2025. Its ENERGY STAR score went from 96 in 2015 to 97 in 2025 (+1 points); its best year on file was 2023, at 97. Site EUI moved from 42.7 kBtu/ft² (2015) to 38.2 kBtu/ft² (2025), a 11% decrease. Reported emissions went from 53 tCO₂e to 42 tCO₂e over the same span (down 21%).

What does an ENERGY STAR score of 97 mean?

ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Seattle, 69% of scored buildings are at 75 or above.

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 Ii (Fiona)'s 38.2 kBtu/ft² across 271,071 sq ft works out to about 10.4 billion Btu (3,035 MWh-equivalent) in 2025. Its source EUI of 106.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,935,748 kWh of electricity and 705 therms of natural gas for the year.

Which law requires City Place Ii (Fiona) to report its energy use?

City Place Ii (Fiona) 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:473:2025). 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

Frequently asked questions

What is City Place Ii (Fiona)'s energy grade?

City Place Ii (Fiona) scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does City Place Ii (Fiona) use?

Its 2025 site energy-use intensity was 38.2 kBtu/ft² (106.3 kBtu/ft² source) across 271,071 sq ft, including 1,935,748 kWh of electricity and 705 therms of natural gas.

What are City Place Ii (Fiona)'s carbon emissions?

City Place Ii (Fiona) reported 42 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.

Where is City Place Ii (Fiona)?

City Place Ii (Fiona) is at 500 BOREN AVE N, in Seattle, Washington 98109. Its coordinates are 47.62383, -122.33560 (latitude, longitude), as published in the Building Energy Benchmarking file.

How big is City Place Ii (Fiona) and when was it built?

City Place Ii (Fiona) has 271,071 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2009 as its year built. It is classed as office.

Is City Place Ii (Fiona) 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 Ii (Fiona), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/city-place-ii-fiona-7f3a51b9 (data as of October 2, 2026).