The Seasons- Aspen
Multifamily Housing in Denver, CO · 3329 E Bayaud · 80209
At a glance
The Seasons- Aspen is a 224,784-square-foot multifamily housing building at 3329 E Bayaud in Denver, Colorado, built in 1986. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 43.2 kBtu/ft² and 949 tCO₂e of greenhouse-gas emissions. That score is higher than 71% of the 956 scored multifamily housing buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 43.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 949 tCO₂e |
| GHG intensity | — |
| Electricity | 1,305,383 kWh |
| Natural gas | 52,530 therms |
| Gross floor area | 224,784 sq ft |
| Source record | denver:3489:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 94 | -5 | 43.2 kBtu/ft² | 949 tCO₂e |
| 2022 | 99 | ±0 | 28.7 kBtu/ft² | 2,520 tCO₂e |
| 2021 | 99 | 26.5 kBtu/ft² | 2,641 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
- 3329 E Bayaud
- City
- Denver
- State
- Colorado
- ZIP
- 80209
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 The Seasons- Aspen 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. The Seasons- Aspen's ENERGY STAR score of 94 compares with an average of 78 across the 956 that report a score; it scores higher than 71% of them and lower than 26%. Its site EUI of 43.2 kBtu/ft² is about 24% below the average of 57.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 224,784 sq ft, it is about 78% above the average floor area of 126,139 sq ft for those buildings. It was built in 1986, 4 years earlier 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 The Seasons- Aspen's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for The Seasons- Aspen, covering report years 2021–2023. Its ENERGY STAR score went from 99 in 2021 to 94 in 2023 (-5 points); its best year on file was 2021, at 99. Site EUI moved from 26.5 kBtu/ft² (2021) to 43.2 kBtu/ft² (2023), an 63% increase. Reported emissions went from 2,641 tCO₂e to 949 tCO₂e over the same span (down 64%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. The Seasons- Aspen's 43.2 kBtu/ft² across 224,784 sq ft works out to about 9.7 billion Btu (2,846 MWh-equivalent) in 2023. The disclosure also reports 1,305,383 kWh of electricity and 52,530 therms of natural gas for the year.
Which law requires The Seasons- Aspen to report its energy use?
The Seasons- Aspen 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:3489:2023). 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 multifamily housing buildings in Denver
- Alexan Julian (Lx108)· 221,585 sq ft · score 92 (A)
- Point 21 - Co (Pt49)· 220,250 sq ft · score 100 (A)
- Little Raven· 219,918 sq ft · score 83 (B)
- Emblem Gateway· 219,636 sq ft · score 99 (A)
- Civic Lofts (Cv012)· 216,881 sq ft · EUI 42.5 kBtu/ft²
- The Ventana At Colorado Station· 216,775 sq ft · score 68 (C)
- Multifamily Housing buildings in Denver· 1,108 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 The Seasons- Aspen's energy grade?
The Seasons- Aspen scores 94 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 The Seasons- Aspen use?
Its 2023 site energy-use intensity was 43.2 kBtu/ft² across 224,784 sq ft, including 1,305,383 kWh of electricity and 52,530 therms of natural gas.
What are The Seasons- Aspen's carbon emissions?
The Seasons- Aspen reported 949 tCO₂e of greenhouse-gas emissions for 2023.
Where is The Seasons- Aspen?
The Seasons- Aspen is at 3329 E Bayaud, in Denver, Colorado 80209.
How big is The Seasons- Aspen and when was it built?
The Seasons- Aspen has 224,784 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1986 as its year built. It is classed as multifamily housing.
Is The Seasons- Aspen 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.
Working with Denver building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “The Seasons- Aspen, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/the-seasons-aspen-1a915718 (data as of July 9, 2026).