At a glance
Park Central Denver-1515 Arapahoe is a 633,640-square-foot office building at 1515 Arapahoe Street in Denver, Colorado, built in 1973. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 91 out of 100 (grade A), a site energy-use intensity of 46.8 kBtu/ft² and 3,127 tCO₂e of greenhouse-gas emissions. That score is higher than 88% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 91 (band A) |
| Site EUI | 46.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 3,127 tCO₂e |
| GHG intensity | — |
| Electricity | 4,370,018 kWh |
| Natural gas | 153,559 therms |
| Gross floor area | 633,640 sq ft |
| Source record | denver:2609:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 91 | +12 | 46.8 kBtu/ft² | 3,127 tCO₂e |
| 2022 | 79 | -14 | 58.0 kBtu/ft² | 4,054 tCO₂e |
| 2021 | 93 | 43.6 kBtu/ft² | 3,324 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
- 1515 Arapahoe Street
- City
- Denver
- State
- Colorado
- ZIP
- 80202
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 Park Central Denver-1515 Arapahoe compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Park Central Denver-1515 Arapahoe's ENERGY STAR score of 91 compares with an average of 71 across the 339 that report a score; it scores higher than 88% of them and lower than 10%. Its site EUI of 46.8 kBtu/ft² is about 30% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 633,640 sq ft, it is about 301% above the average floor area of 157,927 sq ft for those buildings. It was built in 1973, 7 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 Park Central Denver-1515 Arapahoe's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Park Central Denver-1515 Arapahoe, covering report years 2021–2023. Its ENERGY STAR score went from 93 in 2021 to 91 in 2023 (-2 points); its best year on file was 2021, at 93. Site EUI moved from 43.6 kBtu/ft² (2021) to 46.8 kBtu/ft² (2023), an 7% increase. Reported emissions went from 3,324 tCO₂e to 3,127 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 91 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 91 means the building performs better than about 91% of its national peers. BuildingCensus bands the score into report-card grades; 91 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. Park Central Denver-1515 Arapahoe's 46.8 kBtu/ft² across 633,640 sq ft works out to about 29.7 billion Btu (8,691 MWh-equivalent) in 2023. The disclosure also reports 4,370,018 kWh of electricity and 153,559 therms of natural gas for the year.
Which law requires Park Central Denver-1515 Arapahoe to report its energy use?
Park Central Denver-1515 Arapahoe 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:2609:2023). 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
- Granite Tower· 607,979 sq ft · score 83 (B)
- 1800 Larimer· 606,241 sq ft · score 79 (B)
- Independence Plaza· 584,629 sq ft · score 83 (B)
- Us Bank Tower - 950 17Th· 564,714 sq ft · score 81 (B)
- 1600 W 12Th Ave· 544,805 sq ft · EUI 21.7 kBtu/ft²
- Lincoln Crossing· 527,052 sq ft · score 79 (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 Park Central Denver-1515 Arapahoe's energy grade?
Park Central Denver-1515 Arapahoe scores 91 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 Park Central Denver-1515 Arapahoe use?
Its 2023 site energy-use intensity was 46.8 kBtu/ft² across 633,640 sq ft, including 4,370,018 kWh of electricity and 153,559 therms of natural gas.
What are Park Central Denver-1515 Arapahoe's carbon emissions?
Park Central Denver-1515 Arapahoe reported 3,127 tCO₂e of greenhouse-gas emissions for 2023.
Where is Park Central Denver-1515 Arapahoe?
Park Central Denver-1515 Arapahoe is at 1515 Arapahoe Street, in Denver, Colorado 80202.
How big is Park Central Denver-1515 Arapahoe and when was it built?
Park Central Denver-1515 Arapahoe has 633,640 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1973 as its year built. It is classed as office.
Is Park Central Denver-1515 Arapahoe 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, “Park Central Denver-1515 Arapahoe, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/park-central-denver-1515-arapahoe-56c07707 (data as of July 9, 2026).