At a glance
8181 East Tufts Avenue is a 192,830-square-foot office building at 8181 E.Tufts Avenue in Denver, Colorado, built in 2001. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 78 out of 100 (grade B), a site energy-use intensity of 99.3 kBtu/ft² and 1,776 tCO₂e of greenhouse-gas emissions. That score is higher than 49% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 78 (band B) |
| Site EUI | 99.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,776 tCO₂e |
| GHG intensity | — |
| Electricity | 2,183,621 kWh |
| Natural gas | 116,930 therms |
| Gross floor area | 192,830 sq ft |
| Source record | denver:4867:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 78 | -3 | 99.3 kBtu/ft² | 1,776 tCO₂e |
| 2022 | 81 | -5 | 92.3 kBtu/ft² | 1,674 tCO₂e |
| 2021 | 86 | 82.8 kBtu/ft² | 1,589 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
- 8181 E.Tufts Avenue
- City
- Denver
- State
- Colorado
- ZIP
- 80237
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 8181 East Tufts Avenue compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. 8181 East Tufts Avenue's ENERGY STAR score of 78 compares with an average of 71 across the 339 that report a score; it scores higher than 49% of them and lower than 49%. Its site EUI of 99.3 kBtu/ft² is about 48% above the average of 67.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 192,830 sq ft, it is about 22% above the average floor area of 157,927 sq ft for those buildings. It was built in 2001, 21 years later 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 8181 East Tufts Avenue's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for 8181 East Tufts Avenue, covering report years 2021–2023. Its ENERGY STAR score went from 86 in 2021 to 78 in 2023 (-8 points); its best year on file was 2021, at 86. Site EUI moved from 82.8 kBtu/ft² (2021) to 99.3 kBtu/ft² (2023), an 20% increase. Reported emissions went from 1,589 tCO₂e to 1,776 tCO₂e over the same span (up 12%).
What does an ENERGY STAR score of 78 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 78 means the building performs better than about 78% of its national peers. BuildingCensus bands the score into report-card grades; 78 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 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. 8181 East Tufts Avenue's 99.3 kBtu/ft² across 192,830 sq ft works out to about 19.1 billion Btu (5,612 MWh-equivalent) in 2023. The disclosure also reports 2,183,621 kWh of electricity and 116,930 therms of natural gas for the year.
Which law requires 8181 East Tufts Avenue to report its energy use?
8181 East Tufts Avenue 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:4867:2023). 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
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- Oracle Denver 3· 187,103 sq ft · score 56 (C)
- Oracle Denver 2· 186,460 sq ft · score 90 (A)
- Capitol Center· 185,514 sq ft · score 84 (B)
- 50-Fifty Dtc· 185,000 sq ft · score 89 (A)
- Office buildings in Denver· 427 benchmarked
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Frequently asked questions
What is 8181 East Tufts Avenue's energy grade?
8181 East Tufts Avenue scores 78 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 8181 East Tufts Avenue use?
Its 2023 site energy-use intensity was 99.3 kBtu/ft² across 192,830 sq ft, including 2,183,621 kWh of electricity and 116,930 therms of natural gas.
What are 8181 East Tufts Avenue's carbon emissions?
8181 East Tufts Avenue reported 1,776 tCO₂e of greenhouse-gas emissions for 2023.
Where is 8181 East Tufts Avenue?
8181 East Tufts Avenue is at 8181 E.Tufts Avenue, in Denver, Colorado 80237.
How big is 8181 East Tufts Avenue and when was it built?
8181 East Tufts Avenue has 192,830 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2001 as its year built. It is classed as office.
Is 8181 East Tufts Avenue 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, “8181 East Tufts Avenue, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/8181-east-tufts-avenue-e732b26a (data as of July 9, 2026).