At a glance
811 STARK is a 30,607-square-foot office building at 811 SE STARK ST in Portland, Oregon, built in 2016. In its 2024 Portland benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 31.9 kBtu/ft² and 90 tCO₂e of greenhouse-gas emissions. That score is higher than 50% of the 256 scored office buildings in Portland.
Commercial Building Energy Performance Reporting Policy · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 84 (band B) |
| Site EUI | 31.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 90 tCO₂e |
| GHG intensity | — |
| Electricity | 278,600 kWh |
| Natural gas | 268 therms |
| Gross floor area | 30,607 sq ft |
| Source record | portland_or:1N1E35CC-10800-B2:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 84 | +1 | 31.9 kBtu/ft² | 90 tCO₂e |
| 2023 | 83 | 33.4 kBtu/ft² | 87 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
- 811 SE STARK ST
- 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 811 STARK compare with other office buildings in Portland?
The latest disclosures cover 335 office buildings in Portland, out of 952 buildings citywide. 811 STARK's ENERGY STAR score of 84 compares with an average of 76 across the 256 that report a score; it scores higher than 50% of them and lower than 47%. Its site EUI of 31.9 kBtu/ft² is about 33% below the average of 47.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 30,607 sq ft, it is about 70% below the average floor area of 100,908 sq ft for those buildings. It was built in 2016, 59 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 811 STARK's energy performance changed over time?
BuildingCensus holds 2 Portland disclosures for 811 STARK, covering report years 2023–2024. Its ENERGY STAR score went from 83 in 2023 to 84 in 2024 (+1 points). Site EUI moved from 33.4 kBtu/ft² (2023) to 31.9 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 87 tCO₂e to 90 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 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. 811 STARK's 31.9 kBtu/ft² across 30,607 sq ft works out to about 1 billion Btu (286 MWh-equivalent) in 2024. The disclosure also reports 278,600 kWh of electricity and 268 therms of natural gas for the year.
Which law requires 811 STARK to report its energy use?
811 STARK 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:1N1E35CC-10800-B2:2024). 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
- Fitzgibbon Glass Building· 30,492 sq ft · score 94 (A)
- Yamhill Plaza Building· 30,251 sq ft · score 100 (A)
- Volta· 30,162 sq ft · score 92 (A)
- Everett Street Lofts· 30,000 sq ft · score 100 (A)
- Bastian Building· 30,000 sq ft · EUI 25.7 kBtu/ft²
- Grand MLK· 30,000 sq ft · score 94 (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 811 STARK's energy grade?
811 STARK scores 84 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 811 STARK use?
Its 2024 site energy-use intensity was 31.9 kBtu/ft² across 30,607 sq ft, including 278,600 kWh of electricity and 268 therms of natural gas.
What are 811 STARK's carbon emissions?
811 STARK reported 90 tCO₂e of greenhouse-gas emissions for 2024.
Where is 811 STARK?
811 STARK is at 811 SE STARK ST, in Portland, Oregon.
How big is 811 STARK and when was it built?
811 STARK has 30,607 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2016 as its year built. It is classed as office.
Is 811 STARK 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, “811 STARK, Portland, Oregon — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/portland/811-stark-f60c1687 (data as of July 9, 2026).