BuildingCensus
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Midway Unit #180 Old West Mattress 11440 E 56Th Ave

Manufacturing/Industrial Plant in Denver, CO · 11440 E. 56Th Ave · 80239

At a glance

Midway Unit #180 Old West Mattress 11440 E 56Th Ave is a 66,878-square-foot manufacturing/industrial plant at 11440 E. 56Th Ave in Denver, Colorado, built in 1968. In its 2023 Denver benchmarking disclosure it reported a site energy-use intensity of 100.4 kBtu/ft² and 497 tCO₂e of greenhouse-gas emissions.

ENERGY STAR score
—
not reported · 2023
Site EUI
100.4
kBtu/ft²
GHG emissions
497
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
66,878
sq ft
Year built
1968
vintage

Energize Denver Building Performance Policy · reporting year 2023

Benchmarking record

FieldValue
ENERGY STAR score—
Site EUI100.4 kBtu/ft²
Source EUI—
GHG emissions497 tCO₂e
GHG intensity—
Electricity403,561 kWh
Natural gas53,356 therms
Gross floor area66,878 sq ft
Source recorddenver:6463:2023

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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
11440 E. 56Th Ave
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 Midway Unit #180 Old West Mattress 11440 E 56Th Ave 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 100.4 kBtu/ft² is about half of the average of 212.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 66,878 sq ft, it is about 15% below the average floor area of 79,006 sq ft for those buildings. It was built in 1968, 4 years earlier than 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.

What does a site EUI of 100.4 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. Midway Unit #180 Old West Mattress 11440 E 56Th Ave's 100.4 kBtu/ft² across 66,878 sq ft works out to about 6.7 billion Btu (1,968 MWh-equivalent) in 2023. The disclosure also reports 403,561 kWh of electricity and 53,356 therms of natural gas for the year.

Which law requires Midway Unit #180 Old West Mattress 11440 E 56Th Ave to report its energy use?

Midway Unit #180 Old West Mattress 11440 E 56Th Ave 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:6463:2023). 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

Frequently asked questions

What is Midway Unit #180 Old West Mattress 11440 E 56Th Ave's energy grade?

Midway Unit #180 Old West Mattress 11440 E 56Th Ave did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 100.4 kBtu/ft².

How much energy does Midway Unit #180 Old West Mattress 11440 E 56Th Ave use?

Its 2023 site energy-use intensity was 100.4 kBtu/ft² across 66,878 sq ft, including 403,561 kWh of electricity and 53,356 therms of natural gas.

What are Midway Unit #180 Old West Mattress 11440 E 56Th Ave's carbon emissions?

Midway Unit #180 Old West Mattress 11440 E 56Th Ave reported 497 tCO₂e of greenhouse-gas emissions for 2023.

Where is Midway Unit #180 Old West Mattress 11440 E 56Th Ave?

Midway Unit #180 Old West Mattress 11440 E 56Th Ave is at 11440 E. 56Th Ave, in Denver, Colorado 80239.

How big is Midway Unit #180 Old West Mattress 11440 E 56Th Ave and when was it built?

Midway Unit #180 Old West Mattress 11440 E 56Th Ave has 66,878 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1968 as its year built. It is classed as manufacturing/industrial plant.

Is Midway Unit #180 Old West Mattress 11440 E 56Th Ave 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, “Midway Unit #180 Old West Mattress 11440 E 56Th Ave, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/midway-unit-180-old-west-mattress-11440-e-56th-ave-23f17b0d (data as of July 9, 2026).