Mercer Union Station (Me139)
Multifamily Housing in Denver, CO · 2059 19Th St · 80202
At a glance
Mercer Union Station (Me139) is a 129,925-square-foot multifamily housing building at 2059 19Th St in Denver, Colorado, built in 2023. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 43.7 kBtu/ft² and 661 tCO₂e of greenhouse-gas emissions. That score is higher than 78% of the 956 scored multifamily housing buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 43.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 661 tCO₂e |
| GHG intensity | — |
| Electricity | 1,033,186 kWh |
| Natural gas | 21,543 therms |
| Gross floor area | 129,925 sq ft |
| Source record | denver:6229:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 96 | 43.7 kBtu/ft² | 661 tCO₂e | |
| 2022 | — | — | — | |
| 2021 | — | — | — |
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
- 2059 19Th St
- 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 Mercer Union Station (Me139) compare with other multifamily housing buildings in Denver?
The latest disclosures cover 1,108 multifamily housing buildings in Denver, out of 3,287 buildings citywide. Mercer Union Station (Me139)'s ENERGY STAR score of 96 compares with an average of 78 across the 956 that report a score; it scores higher than 78% of them and lower than 19%. Its site EUI of 43.7 kBtu/ft² is about 23% below the average of 57.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 129,925 sq ft, it is roughly in line with the average floor area of 126,139 sq ft for those buildings. It was built in 2023, 33 years later than the group's average year built (1990). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Mercer Union Station (Me139)'s energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Mercer Union Station (Me139), covering report years 2021–2023. Only one of those years carries energy figures.
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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. Mercer Union Station (Me139)'s 43.7 kBtu/ft² across 129,925 sq ft works out to about 5.7 billion Btu (1,664 MWh-equivalent) in 2023. The disclosure also reports 1,033,186 kWh of electricity and 21,543 therms of natural gas for the year.
Which law requires Mercer Union Station (Me139) to report its energy use?
Mercer Union Station (Me139) 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:6229:2023). 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.
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Frequently asked questions
What is Mercer Union Station (Me139)'s energy grade?
Mercer Union Station (Me139) scores 96 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 Mercer Union Station (Me139) use?
Its 2023 site energy-use intensity was 43.7 kBtu/ft² across 129,925 sq ft, including 1,033,186 kWh of electricity and 21,543 therms of natural gas.
What are Mercer Union Station (Me139)'s carbon emissions?
Mercer Union Station (Me139) reported 661 tCO₂e of greenhouse-gas emissions for 2023.
Where is Mercer Union Station (Me139)?
Mercer Union Station (Me139) is at 2059 19Th St, in Denver, Colorado 80202.
How big is Mercer Union Station (Me139) and when was it built?
Mercer Union Station (Me139) has 129,925 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2023 as its year built. It is classed as multifamily housing.
Is Mercer Union Station (Me139) 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, “Mercer Union Station (Me139), Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/mercer-union-station-me139-b3147097 (data as of July 9, 2026).