At a glance
Upper Colfax Business Center is a 39,467-square-foot office building at 1245 E Colfax in Denver, Colorado, built in 1966. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 60 out of 100 (grade C), a site energy-use intensity of 56.4 kBtu/ft² and 319 tCO₂e of greenhouse-gas emissions. That score is higher than 22% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 60 (band C) |
| Site EUI | 56.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 319 tCO₂e |
| GHG intensity | — |
| Electricity | 577,913 kWh |
| Natural gas | 2,522 therms |
| Gross floor area | 39,467 sq ft |
| Source record | denver:2764:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 60 | -8 | 56.4 kBtu/ft² | 319 tCO₂e |
| 2022 | 68 | -4 | 52.0 kBtu/ft² | 286 tCO₂e |
| 2021 | 72 | 52.7 kBtu/ft² | 317 tCO₂e |
Compliance context
Energize Denver Building Performance Policy
Energize Denver sets energy-use (EUI) targets for buildings of 25,000+ sq ft — for most buildings an interim target in 2028 and a final target in 2032 — with civil penalties of roughly $0.15–0.35 per kBtu over target for non-compliance.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 1245 E Colfax
- City
- Denver
- State
- Colorado
- ZIP
- 80218
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Denver · biggest emitters
How does Upper Colfax Business Center compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Upper Colfax Business Center's ENERGY STAR score of 60 compares with an average of 71 across the 339 that report a score; it scores higher than 22% of them and lower than 77%. Its site EUI of 56.4 kBtu/ft² is about 16% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 39,467 sq ft, it is about 75% below the average floor area of 157,927 sq ft for those buildings. It was built in 1966, 14 years earlier than the group's average year built (1980). 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 Upper Colfax Business Center's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Upper Colfax Business Center, covering report years 2021–2023. Its ENERGY STAR score went from 72 in 2021 to 60 in 2023 (-12 points); its best year on file was 2021, at 72. Site EUI moved from 52.7 kBtu/ft² (2021) to 56.4 kBtu/ft² (2023), an 7% increase. Reported emissions went from 317 tCO₂e to 319 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 60 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 60 means the building performs better than about 60% of its national peers. BuildingCensus bands the score into report-card grades; 60 falls in band C — below median (55–69). It sits 15 points below 75, the threshold for ENERGY STAR certification. In Denver, 54% 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. Upper Colfax Business Center's 56.4 kBtu/ft² across 39,467 sq ft works out to about 2.2 billion Btu (652 MWh-equivalent) in 2023. The disclosure also reports 577,913 kWh of electricity and 2,522 therms of natural gas for the year.
Which law requires Upper Colfax Business Center to report its energy use?
Upper Colfax Business Center reports under the Energize Denver Building Performance Policy, the legal basis of Denver's Energize Denver Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2023 disclosure (source record denver:2764:2023). Energize Denver sets energy-use (EUI) targets for buildings of 25,000+ sq ft — for most buildings an interim target in 2028 and a final target in 2032 — with civil penalties of roughly $0.15–0.35 per kBtu over target for non-compliance.
More office buildings in Denver
- Wheeler Block· 39,116 sq ft · score 68 (C)
- 2755 S Locust· 39,000 sq ft · score 70 (B)
- 1600 Wynkoop Condominium· 38,828 sq ft · EUI 58.7 kBtu/ft²
- Young Americans Education Foundation· 38,716 sq ft · score 30 (D)
- Evstudio· 38,427 sq ft · score 65 (C)
- 938 Bannock· 38,378 sq ft · score 42 (D)
- Office buildings in Denver· 427 benchmarked
- All Denver benchmarked buildings· Energize Denver Building Performance Policy
- Most efficient large buildings in Denver
- Least efficient large buildings in Denver
- Biggest emitters in Denver
Frequently asked questions
What is Upper Colfax Business Center's energy grade?
Upper Colfax Business Center scores 60 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Upper Colfax Business Center use?
Its 2023 site energy-use intensity was 56.4 kBtu/ft² across 39,467 sq ft, including 577,913 kWh of electricity and 2,522 therms of natural gas.
What are Upper Colfax Business Center's carbon emissions?
Upper Colfax Business Center reported 319 tCO₂e of greenhouse-gas emissions for 2023.
Where is Upper Colfax Business Center?
Upper Colfax Business Center is at 1245 E Colfax, in Denver, Colorado 80218.
How big is Upper Colfax Business Center and when was it built?
Upper Colfax Business Center has 39,467 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1966 as its year built. It is classed as office.
Is Upper Colfax Business Center covered by the Energize Denver Building Performance Policy?
Yes — it appears in the 2023 Energize Denver Benchmarking disclosure, which lists the buildings reporting under the Energize Denver Building Performance Policy.
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About this data
Source: Energize Denver Benchmarking (Energize Denver Building Performance Policy), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Upper Colfax Business Center, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/upper-colfax-business-center-c5941ba6 (data as of July 9, 2026).