At a glance
Hotel Chamberlain is a 45,000-square-foot hotel at 509 SE GRAND AVE in Portland, Oregon, built in 1906. In its 2024 Portland benchmarking disclosure it reported an ENERGY STAR score of 83 out of 100 (grade B), a site energy-use intensity of 33.6 kBtu/ft² and 142 tCO₂e of greenhouse-gas emissions. That score is higher than 38% of the 63 scored hotel buildings in Portland.
Commercial Building Energy Performance Reporting Policy · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 83 (band B) |
| Site EUI | 33.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 142 tCO₂e |
| GHG intensity | — |
| Electricity | 443,800 kWh |
| Gross floor area | 45,000 sq ft |
| Source record | portland_or:1S1E02BB-1700-B1:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 83 | -2 | 33.6 kBtu/ft² | 142 tCO₂e |
| 2023 | 85 | 33.3 kBtu/ft² | 129 tCO₂e |
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
- 509 SE GRAND 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 Hotel Chamberlain compare with other hotel buildings in Portland?
The latest disclosures cover 68 hotel buildings in Portland, out of 952 buildings citywide. Hotel Chamberlain's ENERGY STAR score of 83 compares with an average of 82 across the 63 that report a score; it scores higher than 38% of them and lower than 59%. Its site EUI of 33.6 kBtu/ft² is about half of the average of 62.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 45,000 sq ft, it is about 63% below the average floor area of 121,950 sq ft for those buildings. It was built in 1906, 73 years earlier than the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has Hotel Chamberlain's energy performance changed over time?
BuildingCensus holds 2 Portland disclosures for Hotel Chamberlain, covering report years 2023–2024. Its ENERGY STAR score went from 85 in 2023 to 83 in 2024 (-2 points); its best year on file was 2023, at 85. Site EUI moved from 33.3 kBtu/ft² (2023) to 33.6 kBtu/ft² (2024), an 1% increase. Reported emissions went from 129 tCO₂e to 142 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 83 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 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 falls in band B — above median (70–84). 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 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. Hotel Chamberlain's 33.6 kBtu/ft² across 45,000 sq ft works out to about 1.5 billion Btu (443 MWh-equivalent) in 2024. The disclosure also reports 443,800 kWh of electricity for the year.
Which law requires Hotel Chamberlain to report its energy use?
Hotel Chamberlain 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:1S1E02BB-1700-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 hotel buildings in Portland
- Holiday Inn Express NW Portland· 44,742 sq ft · score 99 (A)
- Best Western Plus Portland Airport· 42,378 sq ft · score 92 (A)
- Jupiter Next· 41,355 sq ft · score 93 (A)
- Quality Inn· 38,693 sq ft · score 100 (A)
- La Quinta Inn· 37,619 sq ft · score 98 (A)
- Super 8 Portland Airport· 32,784 sq ft · score 81 (B)
- Hotel buildings in Portland· 68 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 Hotel Chamberlain's energy grade?
Hotel Chamberlain scores 83 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Portland disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Hotel Chamberlain use?
Its 2024 site energy-use intensity was 33.6 kBtu/ft² across 45,000 sq ft, including 443,800 kWh of electricity.
What are Hotel Chamberlain's carbon emissions?
Hotel Chamberlain reported 142 tCO₂e of greenhouse-gas emissions for 2024.
Where is Hotel Chamberlain?
Hotel Chamberlain is at 509 SE GRAND AVE, in Portland, Oregon.
How big is Hotel Chamberlain and when was it built?
Hotel Chamberlain has 45,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1906 as its year built. It is classed as hotel.
Is Hotel Chamberlain 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, “Hotel Chamberlain, Portland, Oregon — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/portland/hotel-chamberlain-8b4ed34b (data as of July 9, 2026).