4860/80 Ironton
Distribution Center in Denver, CO · 4880 Ironton Street · 80239
At a glance
4860/80 Ironton is a 71,600-square-foot distribution center at 4880 Ironton Street in Denver, Colorado, built in 1970. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 43 out of 100 (grade D), a site energy-use intensity of 68.5 kBtu/ft² and 402 tCO₂e of greenhouse-gas emissions. That score is higher than 20% of the 139 scored distribution center buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 43 (band D) |
| Site EUI | 68.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 402 tCO₂e |
| GHG intensity | — |
| Electricity | 406,966 kWh |
| Natural gas | 35,137 therms |
| Gross floor area | 71,600 sq ft |
| Source record | denver:1215:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 43 | 68.5 kBtu/ft² | 402 tCO₂e | |
| 2022 | — | 66.8 kBtu/ft² | 384 tCO₂e | |
| 2021 | — | 56.6 kBtu/ft² | 359 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
- 4880 Ironton Street
- City
- Denver
- State
- Colorado
- ZIP
- 80239
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 4860/80 Ironton compare with other distribution center buildings in Denver?
The latest disclosures cover 188 distribution center buildings in Denver, out of 3,287 buildings citywide. 4860/80 Ironton's ENERGY STAR score of 43 compares with an average of 61 across the 139 that report a score; it scores higher than 20% of them and lower than 78%. Its site EUI of 68.5 kBtu/ft² is about 42% above the average of 48.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 71,600 sq ft, it is about 31% below the average floor area of 103,624 sq ft for those buildings. It was built in 1970, 10 years earlier than the group's average year built (1980). Across all 24 jurisdictions BuildingCensus covers, the 4,082 distribution center buildings average an ENERGY STAR score of 65 and a site EUI of 24.2 kBtu/ft².
How has 4860/80 Ironton's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for 4860/80 Ironton, covering report years 2021–2023. Site EUI moved from 56.6 kBtu/ft² (2021) to 68.5 kBtu/ft² (2023), an 21% increase. Reported emissions went from 359 tCO₂e to 402 tCO₂e over the same span (up 12%).
What does an ENERGY STAR score of 43 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 43 means the building performs better than about 43% of its national peers. BuildingCensus bands the score into report-card grades; 43 falls in band D — lowest band (1–54). It sits 32 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. 4860/80 Ironton's 68.5 kBtu/ft² across 71,600 sq ft works out to about 4.9 billion Btu (1,437 MWh-equivalent) in 2023. The disclosure also reports 406,966 kWh of electricity and 35,137 therms of natural gas for the year.
Which law requires 4860/80 Ironton to report its energy use?
4860/80 Ironton 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:1215:2023). 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 distribution center buildings in Denver
- Peerless Tyre Co· 71,300 sq ft · score 38 (D)
- 2300 W 2Nd Ave (Cdia W 2Nd Ave)· 70,240 sq ft · EUI 25.1 kBtu/ft²
- Industrial Valco, Inc.· 69,243 sq ft · score 78 (B)
- Mountain West· 66,008 sq ft · EUI 53.9 kBtu/ft²
- 5005 Lima St· 65,183 sq ft · score 56 (C)
- Allied Group· 63,636 sq ft · score 71 (B)
- Distribution Center buildings in Denver· 188 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 4860/80 Ironton's energy grade?
4860/80 Ironton scores 43 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 4860/80 Ironton use?
Its 2023 site energy-use intensity was 68.5 kBtu/ft² across 71,600 sq ft, including 406,966 kWh of electricity and 35,137 therms of natural gas.
What are 4860/80 Ironton's carbon emissions?
4860/80 Ironton reported 402 tCO₂e of greenhouse-gas emissions for 2023.
Where is 4860/80 Ironton?
4860/80 Ironton is at 4880 Ironton Street, in Denver, Colorado 80239.
How big is 4860/80 Ironton and when was it built?
4860/80 Ironton has 71,600 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1970 as its year built. It is classed as distribution center.
Is 4860/80 Ironton 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, “4860/80 Ironton, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/4860-80-ironton-d8d74249 (data as of July 9, 2026).