At a glance
Empire Park Realty Investments Llc is a 135,032-square-foot office building at 1385 South Colorado Blvd. in Denver, Colorado, built in 1974. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 68 out of 100 (grade C), a site energy-use intensity of 69.1 kBtu/ft² and 1,035 tCO₂e of greenhouse-gas emissions. That score is higher than 32% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 68 (band C) |
| Site EUI | 69.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,035 tCO₂e |
| GHG intensity | — |
| Electricity | 1,551,611 kWh |
| Natural gas | 40,300 therms |
| Gross floor area | 135,032 sq ft |
| Source record | denver:3689:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 68 | +2 | 69.1 kBtu/ft² | 1,035 tCO₂e |
| 2022 | 66 | +5 | 72.0 kBtu/ft² | 1,084 tCO₂e |
| 2021 | 61 | 78.0 kBtu/ft² | 1,220 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
- 1385 South Colorado Blvd.
- City
- Denver
- State
- Colorado
- ZIP
- 80222
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 Empire Park Realty Investments Llc compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Empire Park Realty Investments Llc's ENERGY STAR score of 68 compares with an average of 71 across the 339 that report a score; it scores higher than 32% of them and lower than 66%. Its site EUI of 69.1 kBtu/ft² is roughly in line with the average of 67.1 kBtu/ft².
At 135,032 sq ft, it is about 14% below the average floor area of 157,927 sq ft for those buildings. It was built in 1974, 6 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 Empire Park Realty Investments Llc's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Empire Park Realty Investments Llc, covering report years 2021–2023. Its ENERGY STAR score went from 61 in 2021 to 68 in 2023 (+7 points). Site EUI moved from 78.0 kBtu/ft² (2021) to 69.1 kBtu/ft² (2023), a 11% decrease. Reported emissions went from 1,220 tCO₂e to 1,035 tCO₂e over the same span (down 15%).
What does an ENERGY STAR score of 68 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 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 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. Empire Park Realty Investments Llc's 69.1 kBtu/ft² across 135,032 sq ft works out to about 9.3 billion Btu (2,735 MWh-equivalent) in 2023. The disclosure also reports 1,551,611 kWh of electricity and 40,300 therms of natural gas for the year.
Which law requires Empire Park Realty Investments Llc to report its energy use?
Empire Park Realty Investments Llc 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:3689:2023). 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
- Empire Park Realty Investments Llc· 135,000 sq ft · score 47 (D)
- Penn Center· 134,900 sq ft · score 86 (A)
- Continuum - Block 4· 134,249 sq ft · EUI 73.1 kBtu/ft²
- One Denver Highlands· 131,119 sq ft · EUI 33.3 kBtu/ft²
- 455 Sherman· 129,431 sq ft · score 85 (A)
- Vectra Bank Colorado Corporate Center· 129,348 sq ft · EUI 51.7 kBtu/ft²
- 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 Empire Park Realty Investments Llc's energy grade?
Empire Park Realty Investments Llc scores 68 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 Empire Park Realty Investments Llc use?
Its 2023 site energy-use intensity was 69.1 kBtu/ft² across 135,032 sq ft, including 1,551,611 kWh of electricity and 40,300 therms of natural gas.
What are Empire Park Realty Investments Llc's carbon emissions?
Empire Park Realty Investments Llc reported 1,035 tCO₂e of greenhouse-gas emissions for 2023.
Where is Empire Park Realty Investments Llc?
Empire Park Realty Investments Llc is at 1385 South Colorado Blvd., in Denver, Colorado 80222.
How big is Empire Park Realty Investments Llc and when was it built?
Empire Park Realty Investments Llc has 135,032 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1974 as its year built. It is classed as office.
Is Empire Park Realty Investments Llc 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, “Empire Park Realty Investments Llc, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/empire-park-realty-investments-llc-a81bd866 (data as of July 9, 2026).