At a glance
Posner Center is a 25,274-square-foot office building at 1031 33Rd St in Denver, Colorado, built in 2013. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 39.6 kBtu/ft² and 114 tCO₂e of greenhouse-gas emissions. That score is higher than 94% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 39.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 114 tCO₂e |
| GHG intensity | — |
| Electricity | 174,927 kWh |
| Natural gas | 4,041 therms |
| Gross floor area | 25,274 sq ft |
| Source record | denver:2138:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 94 | +3 | 39.6 kBtu/ft² | 114 tCO₂e |
| 2022 | 91 | +1 | 49.3 kBtu/ft² | 129 tCO₂e |
| 2021 | 90 | 51.7 kBtu/ft² | 144 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
- 1031 33Rd St
- City
- Denver
- State
- Colorado
- ZIP
- 80205
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 Posner Center compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Posner Center's ENERGY STAR score of 94 compares with an average of 71 across the 339 that report a score; it scores higher than 94% of them and lower than 4%. Its site EUI of 39.6 kBtu/ft² is about 41% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 25,274 sq ft, it is about 84% below the average floor area of 157,927 sq ft for those buildings. It was built in 2013, 33 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 Posner Center's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Posner Center, covering report years 2021–2023. Its ENERGY STAR score went from 90 in 2021 to 94 in 2023 (+4 points). Site EUI moved from 51.7 kBtu/ft² (2021) to 39.6 kBtu/ft² (2023), a 23% decrease. Reported emissions went from 144 tCO₂e to 114 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 falls in band A — high performer (85–100). 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. Posner Center's 39.6 kBtu/ft² across 25,274 sq ft works out to about 1 billion Btu (293 MWh-equivalent) in 2023. The disclosure also reports 174,927 kWh of electricity and 4,041 therms of natural gas for the year.
Which law requires Posner Center to report its energy use?
Posner 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:2138:2023). 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
- 3003 E 3Rd Ave - One Building· 25,246 sq ft · score 80 (B)
- Osage Building Condominium· 25,216 sq ft · score 49 (D)
- Taxi 1· 25,000 sq ft · score 64 (C)
- The Emerson School· 25,000 sq ft · score 83 (B)
- 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 Posner Center's energy grade?
Posner Center scores 94 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Posner Center use?
Its 2023 site energy-use intensity was 39.6 kBtu/ft² across 25,274 sq ft, including 174,927 kWh of electricity and 4,041 therms of natural gas.
What are Posner Center's carbon emissions?
Posner Center reported 114 tCO₂e of greenhouse-gas emissions for 2023.
Where is Posner Center?
Posner Center is at 1031 33Rd St, in Denver, Colorado 80205.
How big is Posner Center and when was it built?
Posner Center has 25,274 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2013 as its year built. It is classed as office.
Is Posner 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, “Posner Center, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/posner-center-902de772 (data as of July 9, 2026).