At a glance
Alta Court is a 41,000-square-foot office building at 1490 N Lafayette St in Denver, Colorado, built in 1902. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 43.0 kBtu/ft² and 167 tCO₂e of greenhouse-gas emissions. That score is higher than 80% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 88 (band A) |
| Site EUI | 43.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 167 tCO₂e |
| GHG intensity | — |
| Electricity | 211,889 kWh |
| Natural gas | 10,392 therms |
| Gross floor area | 41,000 sq ft |
| Source record | denver:2932:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 88 | ±0 | 43.0 kBtu/ft² | 167 tCO₂e |
| 2022 | 88 | -2 | 45.6 kBtu/ft² | 169 tCO₂e |
| 2021 | 90 | 42.5 kBtu/ft² | 163 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
- 1490 N Lafayette St
- City
- Denver
- State
- Colorado
- ZIP
- 80218
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 Alta Court compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Alta Court's ENERGY STAR score of 88 compares with an average of 71 across the 339 that report a score; it scores higher than 80% of them and lower than 18%. Its site EUI of 43.0 kBtu/ft² is about 36% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 41,000 sq ft, it is about 74% below the average floor area of 157,927 sq ft for those buildings. It was built in 1902, 78 years earlier 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 Alta Court's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Alta Court, covering report years 2021–2023. Its ENERGY STAR score went from 90 in 2021 to 88 in 2023 (-2 points); its best year on file was 2021, at 90. Site EUI moved from 42.5 kBtu/ft² (2021) to 43.0 kBtu/ft² (2023), an 1% increase. Reported emissions went from 163 tCO₂e to 167 tCO₂e over the same span (up 3%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. Alta Court's 43.0 kBtu/ft² across 41,000 sq ft works out to about 1.8 billion Btu (517 MWh-equivalent) in 2023. The disclosure also reports 211,889 kWh of electricity and 10,392 therms of natural gas for the year.
Which law requires Alta Court to report its energy use?
Alta Court 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:2932:2023). 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
- 1430 Wynkoop Street· 40,949 sq ft · score 92 (A)
- Mcnichols Bldg· 40,933 sq ft · EUI 87.0 kBtu/ft²
- Forest Park Realty Investments, Llc· 40,657 sq ft · score 20 (D)
- Dots· 40,651 sq ft · score 38 (D)
- Alliance Center Operations· 40,393 sq ft · score 80 (B)
- Fentress Architects· 40,296 sq ft · score 41 (D)
- 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 Alta Court's energy grade?
Alta Court scores 88 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 Alta Court use?
Its 2023 site energy-use intensity was 43.0 kBtu/ft² across 41,000 sq ft, including 211,889 kWh of electricity and 10,392 therms of natural gas.
What are Alta Court's carbon emissions?
Alta Court reported 167 tCO₂e of greenhouse-gas emissions for 2023.
Where is Alta Court?
Alta Court is at 1490 N Lafayette St, in Denver, Colorado 80218.
How big is Alta Court and when was it built?
Alta Court has 41,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1902 as its year built. It is classed as office.
Is Alta Court 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, “Alta Court, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/alta-court-563a6581 (data as of July 9, 2026).