4721 Ironton Street - 11463
Manufacturing/Industrial Plant in Denver, CO · 4721 Ironton St · 80239
At a glance
4721 Ironton Street - 11463 is a 51,260-square-foot manufacturing/industrial plant in Denver, Colorado, built in 1969. In its 2023 Denver benchmarking disclosure it reported a site energy-use intensity of 90.6 kBtu/ft² and 353 tCO₂e of greenhouse-gas emissions.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 90.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 353 tCO₂e |
| GHG intensity | — |
| Electricity | 320,010 kWh |
| Natural gas | 35,548 therms |
| Gross floor area | 51,260 sq ft |
| Source record | denver:1626:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 90.6 kBtu/ft² | 353 tCO₂e | |
| 2022 | — | 75.4 kBtu/ft² | 288 tCO₂e | |
| 2021 | — | 83.1 kBtu/ft² | 320 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 4721 Ironton St
- 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 4721 Ironton Street - 11463 compare with other manufacturing/industrial plant buildings in Denver?
The latest disclosures cover 240 manufacturing/industrial plant buildings in Denver, out of 3,287 buildings citywide. Its site EUI of 90.6 kBtu/ft² is about 57% below the average of 212.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 51,260 sq ft, it is about 35% below the average floor area of 79,006 sq ft for those buildings. Its 1969 construction date is close to the group's average year built (1972). Across all 24 jurisdictions BuildingCensus covers, the 2,372 manufacturing/industrial plant buildings average an ENERGY STAR score of 67 and a site EUI of 126.3 kBtu/ft².
How has 4721 Ironton Street - 11463's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for 4721 Ironton Street - 11463, covering report years 2021–2023. Site EUI moved from 83.1 kBtu/ft² (2021) to 90.6 kBtu/ft² (2023), an 9% increase. Reported emissions went from 320 tCO₂e to 353 tCO₂e over the same span (up 10%).
What does a site EUI of 90.6 kBtu/ft² mean?
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. 4721 Ironton Street - 11463's 90.6 kBtu/ft² across 51,260 sq ft works out to about 4.6 billion Btu (1,361 MWh-equivalent) in 2023. The disclosure also reports 320,010 kWh of electricity and 35,548 therms of natural gas for the year.
Which law requires 4721 Ironton Street - 11463 to report its energy use?
4721 Ironton Street - 11463 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:1626:2023). 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 manufacturing/industrial plant buildings in Denver
- Welded Wire/National Warehouse· 50,938 sq ft · EUI 66.3 kBtu/ft²
- 4825 Nome Street, Llc· 50,544 sq ft · EUI 31.5 kBtu/ft²
- Leopold Bros.· 50,169 sq ft · EUI 117.6 kBtu/ft²
- Oldcastle Buildingenvelope- 11255· 49,590 sq ft · EUI 121.8 kBtu/ft²
- Cintas 66· 49,525 sq ft · EUI 578.8 kBtu/ft²
- Publication Printers - 2090 S Lipan· 49,524 sq ft · EUI 370.8 kBtu/ft²
- Manufacturing/Industrial Plant buildings in Denver· 240 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 4721 Ironton Street - 11463's energy grade?
4721 Ironton Street - 11463 did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 90.6 kBtu/ft².
How much energy does 4721 Ironton Street - 11463 use?
Its 2023 site energy-use intensity was 90.6 kBtu/ft² across 51,260 sq ft, including 320,010 kWh of electricity and 35,548 therms of natural gas.
What are 4721 Ironton Street - 11463's carbon emissions?
4721 Ironton Street - 11463 reported 353 tCO₂e of greenhouse-gas emissions for 2023.
Where is 4721 Ironton Street - 11463?
4721 Ironton Street - 11463 is in Denver, Colorado 80239.
How big is 4721 Ironton Street - 11463 and when was it built?
4721 Ironton Street - 11463 has 51,260 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1969 as its year built. It is classed as manufacturing/industrial plant.
Is 4721 Ironton Street - 11463 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, “4721 Ironton Street - 11463, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/4721-ironton-street-11463-e95743b6 (data as of July 9, 2026).