BuildingCensus
A

Oregon Apartments

Multifamily Housing in Seattle, WA · 2301 1ST AVE · 98121

At a glance

Oregon Apartments is a 56,776-square-foot multifamily housing building at 2301 1ST AVE in Seattle, Washington, built in 1902. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 33.7 kBtu/ft² and 44 tCO₂e of greenhouse-gas emissions. That score is higher than 47% of the 1,652 scored multifamily housing buildings in Seattle.

ENERGY STAR score
90
band A · 2025
Site EUI
33.7
kBtu/ft²
GHG emissions
44
tCO₂e
GHG intensity
0.8
kgCO₂e/ft²
Floor area
56,776
sq ft
Year built
1902
vintage
◆ Loading map…
85–10070–8455–691–54
This entry + 6 nearby

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

Benchmarking record

FieldValue
ENERGY STAR score90 (band A)
Site EUI33.7 kBtu/ft²
Source EUI72.6 kBtu/ft²
GHG emissions44 tCO₂e
GHG intensity0.8 kgCO₂e/ft²
Electricity353,834 kWh
Natural gas7,076 therms
Gross floor area56,776 sq ft
Source recordseattle:19757:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest90-333.7 kBtu/ft²44 tCO₂e
202493-331.8 kBtu/ft²43 tCO₂e
202396±028.8 kBtu/ft²34 tCO₂e
202296-129.0 kBtu/ft²34 tCO₂e
202197+128.6 kBtu/ft²38 tCO₂e
202096-229.5 kBtu/ft²42 tCO₂e
201998-227.8 kBtu/ft²42 tCO₂e
2018100+125.2 kBtu/ft²43 tCO₂e
201799±031.5 kBtu/ft²47 tCO₂e
201699+131.1 kBtu/ft²51 tCO₂e
20159835.1 kBtu/ft²62 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.

Own or manage this building? Claim it to correct the record and get compliance alerts.

Location

Address
2301 1ST AVE
State
Washington
ZIP
98121
Coordinates
47.61340, -122.34683

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

How does Oregon 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. Oregon Apartments's ENERGY STAR score of 90 compares with an average of 83 across the 1,652 that report a score; it scores higher than 47% of them and lower than 51%. Its site EUI of 33.7 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is about 11% above the group average of 0.7 kgCO₂e/ft².

At 56,776 sq ft, it is about 34% below the average floor area of 86,468 sq ft for those buildings. It was built in 1902, 81 years earlier 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 Oregon Apartments's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Oregon Apartments, covering report years 2015–2025. Its ENERGY STAR score went from 98 in 2015 to 90 in 2025 (-8 points); its best year on file was 2018, at 100. Site EUI moved from 35.1 kBtu/ft² (2015) to 33.7 kBtu/ft² (2025), a 4% decrease. Reported emissions went from 62 tCO₂e to 44 tCO₂e over the same span (down 28%).

What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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. Oregon Apartments's 33.7 kBtu/ft² across 56,776 sq ft works out to about 1.9 billion Btu (561 MWh-equivalent) in 2025. Its source EUI of 72.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 353,834 kWh of electricity and 7,076 therms of natural gas for the year.

Which law requires Oregon Apartments to report its energy use?

Oregon 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:19757:2025). 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

Frequently asked questions

What is Oregon Apartments's energy grade?

Oregon Apartments scores 90 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 Oregon Apartments use?

Its 2025 site energy-use intensity was 33.7 kBtu/ft² (72.6 kBtu/ft² source) across 56,776 sq ft, including 353,834 kWh of electricity and 7,076 therms of natural gas.

What are Oregon Apartments's carbon emissions?

Oregon Apartments reported 44 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.

Where is Oregon Apartments?

Oregon Apartments is at 2301 1ST AVE, in Seattle, Washington 98121. Its coordinates are 47.61340, -122.34683 (latitude, longitude), as published in the Building Energy Benchmarking file.

How big is Oregon Apartments and when was it built?

Oregon Apartments has 56,776 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1902 as its year built. It is classed as multifamily housing.

Is Oregon 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, “Oregon Apartments, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/oregon-apartments-bb816868 (data as of October 2, 2026).