At a glance
Marquam Building is a 75,110-square-foot office building at 2501 SW 1ST AVE in Portland, Oregon, built in 1966. In its 2024 Portland benchmarking disclosure it reported a site energy-use intensity of 49.0 kBtu/ft² and 271 tCO₂e of greenhouse-gas emissions.
Commercial Building Energy Performance Reporting Policy · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 49.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 271 tCO₂e |
| GHG intensity | — |
| Electricity | 545,623 kWh |
| Natural gas | 18,194 therms |
| Gross floor area | 75,110 sq ft |
| Source record | portland_or:1S1E10BB-800-B1:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 49.0 kBtu/ft² | 271 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
- 2501 SW 1ST 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 Marquam Building compare with other office buildings in Portland?
The latest disclosures cover 335 office buildings in Portland, out of 952 buildings citywide. Its site EUI of 49.0 kBtu/ft² is roughly in line with the average of 47.6 kBtu/ft².
At 75,110 sq ft, it is about 26% below the average floor area of 100,908 sq ft for those buildings. It was built in 1966, 9 years later 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 Marquam Building's energy performance changed over time?
BuildingCensus holds 2 Portland disclosures for Marquam Building, covering report years 2023–2024. Only one of those years carries energy figures.
What does a site EUI of 49.0 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. Marquam Building's 49.0 kBtu/ft² across 75,110 sq ft works out to about 3.7 billion Btu (1,079 MWh-equivalent) in 2024. The disclosure also reports 545,623 kWh of electricity and 18,194 therms of natural gas for the year.
Which law requires Marquam Building to report its energy use?
Marquam 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:1S1E10BB-800-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
- Capital Plaza (307)· 74,439 sq ft · score 78 (B)
- 2 & Taylor Building· 73,757 sq ft · score 97 (A)
- One Airport Center· 73,304 sq ft · score 90 (A)
- 1805 NE SANDY BLVD· 73,189 sq ft · score 30 (D)
- ZIBA Headquarters· 71,867 sq ft · score 86 (A)
- Leftbank· 70,660 sq ft · score 86 (A)
- 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 Marquam Building's energy grade?
Marquam Building did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 49.0 kBtu/ft².
How much energy does Marquam Building use?
Its 2024 site energy-use intensity was 49.0 kBtu/ft² across 75,110 sq ft, including 545,623 kWh of electricity and 18,194 therms of natural gas.
What are Marquam Building's carbon emissions?
Marquam Building reported 271 tCO₂e of greenhouse-gas emissions for 2024.
Where is Marquam Building?
Marquam Building is at 2501 SW 1ST AVE, in Portland, Oregon.
How big is Marquam Building and when was it built?
Marquam Building has 75,110 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1966 as its year built. It is classed as office.
Is Marquam 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, “Marquam Building, Portland, Oregon — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/portland/marquam-building-6956d442 (data as of July 9, 2026).