At a glance
Willamette Building is a 34,000-square-foot office building at 532-538 SW 3RD AVE in Portland, Oregon, built in 1913. In its 2024 Portland benchmarking disclosure it reported an ENERGY STAR score of 69 out of 100 (grade C), a site energy-use intensity of 62.1 kBtu/ft² and 160 tCO₂e of greenhouse-gas emissions. That score is higher than 29% of the 256 scored office buildings in Portland.
Commercial Building Energy Performance Reporting Policy · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 69 (band C) |
| Site EUI | 62.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 160 tCO₂e |
| GHG intensity | — |
| Electricity | 345,557 kWh |
| Natural gas | 9,323 therms |
| Gross floor area | 34,000 sq ft |
| Source record | portland_or:1S1E03BA-5500-B1:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 69 | 62.1 kBtu/ft² | 160 tCO₂e | |
| 2023 | — | — | — |
Compliance context
Commercial Building Energy Performance Reporting Policy
Portland requires commercial buildings over 20,000 sq ft to report energy performance annually, with civil penalties for buildings that fail to comply.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 532-538 SW 3RD AVE
- City
- Portland
- State
- Oregon
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Portland · biggest emitters
How does Willamette Building compare with other office buildings in Portland?
The latest disclosures cover 335 office buildings in Portland, out of 952 buildings citywide. Willamette Building's ENERGY STAR score of 69 compares with an average of 76 across the 256 that report a score; it scores higher than 29% of them and lower than 71%. Its site EUI of 62.1 kBtu/ft² is about 30% above the average of 47.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 34,000 sq ft, it is about 66% below the average floor area of 100,908 sq ft for those buildings. It was built in 1913, 44 years earlier than the group's average year built (1957). 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 Willamette Building's energy performance changed over time?
BuildingCensus holds 2 Portland disclosures for Willamette Building, covering report years 2023–2024. Only one of those years carries energy figures.
What does an ENERGY STAR score of 69 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 69 means the building performs better than about 69% of its national peers. BuildingCensus bands the score into report-card grades; 69 falls in band C — below median (55–69). It sits 6 points below 75, the threshold for ENERGY STAR certification. In Portland, 66% 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. Willamette Building's 62.1 kBtu/ft² across 34,000 sq ft works out to about 2.1 billion Btu (619 MWh-equivalent) in 2024. The disclosure also reports 345,557 kWh of electricity and 9,323 therms of natural gas for the year.
Which law requires Willamette Building to report its energy use?
Willamette Building reports under the Commercial Building Energy Performance Reporting Policy, the legal basis of Portland's Commercial Building Energy Reporting program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record portland_or:1S1E03BA-5500-B1:2024). Portland requires commercial buildings over 20,000 sq ft to report energy performance annually, with civil penalties for buildings that fail to comply.
More office buildings in Portland
- Columbia East· 33,867 sq ft · score 66 (C)
- OSU Food Innovation Center· 33,000 sq ft · EUI 68.1 kBtu/ft²
- Grand + Benedicts· 33,000 sq ft · score 80 (B)
- OHSU Marquam II· 32,924 sq ft · score 33 (D)
- Ross Island Plaza (352)· 32,854 sq ft · score 73 (B)
- The Telegram Building· 32,841 sq ft · score 19 (D)
- Office buildings in Portland· 335 benchmarked
- All Portland benchmarked buildings· Commercial Building Energy Performance Reporting Policy
- Most efficient large buildings in Portland
- Least efficient large buildings in Portland
- Biggest emitters in Portland
Frequently asked questions
What is Willamette Building's energy grade?
Willamette Building scores 69 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Portland disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Willamette Building use?
Its 2024 site energy-use intensity was 62.1 kBtu/ft² across 34,000 sq ft, including 345,557 kWh of electricity and 9,323 therms of natural gas.
What are Willamette Building's carbon emissions?
Willamette Building reported 160 tCO₂e of greenhouse-gas emissions for 2024.
Where is Willamette Building?
Willamette Building is at 532-538 SW 3RD AVE, in Portland, Oregon.
How big is Willamette Building and when was it built?
Willamette Building has 34,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1913 as its year built. It is classed as office.
Is Willamette Building covered by the Commercial Building Energy Performance Reporting Policy?
Yes — it appears in the 2024 Commercial Building Energy Reporting disclosure, which lists the buildings reporting under the Commercial Building Energy Performance Reporting Policy.
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About this data
Source: Commercial Building Energy Reporting (Commercial Building Energy Performance Reporting Policy), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Willamette Building, Portland, Oregon — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/portland/willamette-building-7c486406 (data as of July 9, 2026).