At a glance
Z438510-4600 South Syracuse is a 322,063-square-foot office building in Denver, Colorado, built in 1999. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 59.7 kBtu/ft² and 2,617 tCO₂e of greenhouse-gas emissions. That score is higher than 44% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 75 (band B) |
| Site EUI | 59.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 2,617 tCO₂e |
| GHG intensity | — |
| Electricity | 4,588,788 kWh |
| Natural gas | 35,759 therms |
| Gross floor area | 322,063 sq ft |
| Source record | denver:4890:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 75 | +1 | 59.7 kBtu/ft² | 2,617 tCO₂e |
| 2022 | 74 | +1 | 57.0 kBtu/ft² | 2,488 tCO₂e |
| 2021 | 73 | 55.8 kBtu/ft² | 2,784 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
- 4600 South Syracuse
- City
- Denver
- State
- Colorado
- ZIP
- 80237
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 Z438510-4600 South Syracuse compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Z438510-4600 South Syracuse's ENERGY STAR score of 75 compares with an average of 71 across the 339 that report a score; it scores higher than 44% of them and lower than 55%. Its site EUI of 59.7 kBtu/ft² is about 11% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 322,063 sq ft, it is about twice the average floor area of 157,927 sq ft for those buildings. It was built in 1999, 19 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 Z438510-4600 South Syracuse's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Z438510-4600 South Syracuse, covering report years 2021–2023. Its ENERGY STAR score went from 73 in 2021 to 75 in 2023 (+2 points). Site EUI moved from 55.8 kBtu/ft² (2021) to 59.7 kBtu/ft² (2023), an 7% increase. Reported emissions went from 2,784 tCO₂e to 2,617 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 falls in band B — above median (70–84). 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. Z438510-4600 South Syracuse's 59.7 kBtu/ft² across 322,063 sq ft works out to about 19.2 billion Btu (5,635 MWh-equivalent) in 2023. The disclosure also reports 4,588,788 kWh of electricity and 35,759 therms of natural gas for the year.
Which law requires Z438510-4600 South Syracuse to report its energy use?
Z438510-4600 South Syracuse 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:4890:2023). 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
- 1601 Wewatta· 318,874 sq ft · score 82 (B)
- 1515 Wynkoop· 314,599 sq ft · score 92 (A)
- 251910 - 1290 Broadway· 308,238 sq ft · score 80 (B)
- Stanford One· 307,819 sq ft · score 89 (A)
- Broadway Station - 900 And 990 S. Broadway· 307,814 sq ft · score 85 (A)
- 1660 Lincoln· 307,333 sq ft · score 84 (B)
- 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 Z438510-4600 South Syracuse's energy grade?
Z438510-4600 South Syracuse scores 75 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Z438510-4600 South Syracuse use?
Its 2023 site energy-use intensity was 59.7 kBtu/ft² across 322,063 sq ft, including 4,588,788 kWh of electricity and 35,759 therms of natural gas.
What are Z438510-4600 South Syracuse's carbon emissions?
Z438510-4600 South Syracuse reported 2,617 tCO₂e of greenhouse-gas emissions for 2023.
Where is Z438510-4600 South Syracuse?
Z438510-4600 South Syracuse is in Denver, Colorado 80237.
How big is Z438510-4600 South Syracuse and when was it built?
Z438510-4600 South Syracuse has 322,063 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1999 as its year built. It is classed as office.
Is Z438510-4600 South Syracuse 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, “Z438510-4600 South Syracuse, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/z438510-4600-south-syracuse-fce5c187 (data as of July 9, 2026).