At a glance
Taxi 1 is a 25,000-square-foot office building at 3455 Ringsby Ct in Denver, Colorado, built in 2007. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 84.9 kBtu/ft² and 176 tCO₂e of greenhouse-gas emissions. That score is higher than 25% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 64 (band C) |
| Site EUI | 84.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 176 tCO₂e |
| GHG intensity | — |
| Electricity | 212,505 kWh |
| Natural gas | 12,000 therms |
| Gross floor area | 25,000 sq ft |
| Source record | denver:2035:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 64 | +6 | 84.9 kBtu/ft² | 176 tCO₂e |
| 2022 | 58 | -3 | 87.2 kBtu/ft² | 198 tCO₂e |
| 2021 | 61 | 79.8 kBtu/ft² | 197 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
- 3455 Ringsby Ct
- City
- Denver
- State
- Colorado
- ZIP
- 80216
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 Taxi 1 compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Taxi 1's ENERGY STAR score of 64 compares with an average of 71 across the 339 that report a score; it scores higher than 25% of them and lower than 73%. Its site EUI of 84.9 kBtu/ft² is about 27% above the average of 67.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 25,000 sq ft, it is about 84% below the average floor area of 157,927 sq ft for those buildings. It was built in 2007, 27 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 Taxi 1's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Taxi 1, covering report years 2021–2023. Its ENERGY STAR score went from 61 in 2021 to 64 in 2023 (+3 points). Site EUI moved from 79.8 kBtu/ft² (2021) to 84.9 kBtu/ft² (2023), an 6% increase. Reported emissions went from 197 tCO₂e to 176 tCO₂e over the same span (down 11%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. Taxi 1's 84.9 kBtu/ft² across 25,000 sq ft works out to about 2.1 billion Btu (622 MWh-equivalent) in 2023. The disclosure also reports 212,505 kWh of electricity and 12,000 therms of natural gas for the year.
Which law requires Taxi 1 to report its energy use?
Taxi 1 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:2035:2023). 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
Frequently asked questions
What is Taxi 1's energy grade?
Taxi 1 scores 64 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 Taxi 1 use?
Its 2023 site energy-use intensity was 84.9 kBtu/ft² across 25,000 sq ft, including 212,505 kWh of electricity and 12,000 therms of natural gas.
What are Taxi 1's carbon emissions?
Taxi 1 reported 176 tCO₂e of greenhouse-gas emissions for 2023.
Where is Taxi 1?
Taxi 1 is at 3455 Ringsby Ct, in Denver, Colorado 80216.
How big is Taxi 1 and when was it built?
Taxi 1 has 25,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2007 as its year built. It is classed as office.
Is Taxi 1 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, “Taxi 1, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/taxi-1-17963b8c (data as of July 9, 2026).