At a glance
1705 17Th St (North Wing Union Station) is a 114,945-square-foot office building in Denver, Colorado, built in 2013. 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 62.1 kBtu/ft² and 999 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 | 62.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 999 tCO₂e |
| GHG intensity | — |
| Electricity | 1,781,926 kWh |
| Natural gas | 10,587 therms |
| Gross floor area | 114,945 sq ft |
| Source record | denver:2455:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 68 | ±0 | 62.1 kBtu/ft² | 999 tCO₂e |
| 2022 | 68 | ±0 | 64.1 kBtu/ft² | 1,003 tCO₂e |
| 2021 | 68 | 61.1 kBtu/ft² | 1,041 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
- 1705 17Th 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 1705 17Th St (North Wing Union Station) compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. 1705 17Th St (North Wing Union Station)'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 62.1 kBtu/ft² is roughly in line with the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 114,945 sq ft, it is about 27% below the average floor area of 157,927 sq ft for those buildings. It was built in 2013, 33 years later 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 1705 17Th St (North Wing Union Station)'s energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for 1705 17Th St (North Wing Union Station), covering report years 2021–2023. Its ENERGY STAR score was 68 in both 2021 and 2023. Site EUI moved from 61.1 kBtu/ft² (2021) to 62.1 kBtu/ft² (2023), an 2% increase. Reported emissions went from 1,041 tCO₂e to 999 tCO₂e over the same span (down 4%).
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. 1705 17Th St (North Wing Union Station)'s 62.1 kBtu/ft² across 114,945 sq ft works out to about 7.1 billion Btu (2,092 MWh-equivalent) in 2023. The disclosure also reports 1,781,926 kWh of electricity and 10,587 therms of natural gas for the year.
Which law requires 1705 17Th St (North Wing Union Station) to report its energy use?
1705 17Th St (North Wing Union Station) 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:2455:2023). 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
- Tower 1660, 1660 S Albion Street· 111,787 sq ft · score 62 (C)
- Blake Street Terrace (Tax Assessor 1836, Street Address 1860)· 111,552 sq ft · score 38 (D)
- Hub North· 110,467 sq ft · score 90 (A)
- Plaza 6000· 110,383 sq ft · EUI 58.6 kBtu/ft²
- 999 Offices Llc - Prism (Ff030)· 109,088 sq ft · score 27 (D)
- Circa On Platte· 106,863 sq ft · score 94 (A)
- 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 1705 17Th St (North Wing Union Station)'s energy grade?
1705 17Th St (North Wing Union Station) 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 1705 17Th St (North Wing Union Station) use?
Its 2023 site energy-use intensity was 62.1 kBtu/ft² across 114,945 sq ft, including 1,781,926 kWh of electricity and 10,587 therms of natural gas.
What are 1705 17Th St (North Wing Union Station)'s carbon emissions?
1705 17Th St (North Wing Union Station) reported 999 tCO₂e of greenhouse-gas emissions for 2023.
Where is 1705 17Th St (North Wing Union Station)?
1705 17Th St (North Wing Union Station) is in Denver, Colorado 80202.
How big is 1705 17Th St (North Wing Union Station) and when was it built?
1705 17Th St (North Wing Union Station) has 114,945 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2013 as its year built. It is classed as office.
Is 1705 17Th St (North Wing Union Station) 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, “1705 17Th St (North Wing Union Station), Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/1705-17th-st-north-wing-union-station-4a51d4be (data as of July 9, 2026).