At a glance
Blake Street Terrace (Tax Assessor 1836, Street Address 1860) is a 111,552-square-foot office building at 1860 Blake Street in Denver, Colorado, built in 1983. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 38 out of 100 (grade D), a site energy-use intensity of 82.4 kBtu/ft² and 1,150 tCO₂e of greenhouse-gas emissions. That score is higher than 9% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 38 (band D) |
| Site EUI | 82.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,150 tCO₂e |
| GHG intensity | — |
| Electricity | 1,904,367 kWh |
| Natural gas | 26,923 therms |
| Gross floor area | 111,552 sq ft |
| Source record | denver:2386:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 38 | 82.4 kBtu/ft² | 1,150 tCO₂e | |
| 2022 | — | 98.3 kBtu/ft² | 1,258 tCO₂e | |
| 2021 | 23 | 193.7 kBtu/ft² | 1,818 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
- 1860 Blake Street
- 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 Blake Street Terrace (Tax Assessor 1836, Street Address 1860) compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Blake Street Terrace (Tax Assessor 1836, Street Address 1860)'s ENERGY STAR score of 38 compares with an average of 71 across the 339 that report a score; it scores higher than 9% of them and lower than 90%. Its site EUI of 82.4 kBtu/ft² is about 23% above the average of 67.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 111,552 sq ft, it is about 29% below the average floor area of 157,927 sq ft for those buildings. It was built in 1983, 3 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 Blake Street Terrace (Tax Assessor 1836, Street Address 1860)'s energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Blake Street Terrace (Tax Assessor 1836, Street Address 1860), covering report years 2021–2023. Its ENERGY STAR score went from 23 in 2021 to 38 in 2023 (+15 points). Site EUI moved from 193.7 kBtu/ft² (2021) to 82.4 kBtu/ft² (2023), a 57% decrease. Reported emissions went from 1,818 tCO₂e to 1,150 tCO₂e over the same span (down 37%).
What does an ENERGY STAR score of 38 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 38 means the building performs better than about 38% of its national peers. BuildingCensus bands the score into report-card grades; 38 falls in band D — lowest band (1–54). It sits 37 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. Blake Street Terrace (Tax Assessor 1836, Street Address 1860)'s 82.4 kBtu/ft² across 111,552 sq ft works out to about 9.2 billion Btu (2,694 MWh-equivalent) in 2023. The disclosure also reports 1,904,367 kWh of electricity and 26,923 therms of natural gas for the year.
Which law requires Blake Street Terrace (Tax Assessor 1836, Street Address 1860) to report its energy use?
Blake Street Terrace (Tax Assessor 1836, Street Address 1860) 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:2386:2023). 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
- 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)
- The Vault· 106,231 sq ft · score 54 (D)
- All Copy Products· 106,000 sq ft
- Office buildings in Denver· 427 benchmarked
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Frequently asked questions
What is Blake Street Terrace (Tax Assessor 1836, Street Address 1860)'s energy grade?
Blake Street Terrace (Tax Assessor 1836, Street Address 1860) scores 38 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Blake Street Terrace (Tax Assessor 1836, Street Address 1860) use?
Its 2023 site energy-use intensity was 82.4 kBtu/ft² across 111,552 sq ft, including 1,904,367 kWh of electricity and 26,923 therms of natural gas.
What are Blake Street Terrace (Tax Assessor 1836, Street Address 1860)'s carbon emissions?
Blake Street Terrace (Tax Assessor 1836, Street Address 1860) reported 1,150 tCO₂e of greenhouse-gas emissions for 2023.
Where is Blake Street Terrace (Tax Assessor 1836, Street Address 1860)?
Blake Street Terrace (Tax Assessor 1836, Street Address 1860) is at 1860 Blake Street, in Denver, Colorado 80202.
How big is Blake Street Terrace (Tax Assessor 1836, Street Address 1860) and when was it built?
Blake Street Terrace (Tax Assessor 1836, Street Address 1860) has 111,552 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1983 as its year built. It is classed as office.
Is Blake Street Terrace (Tax Assessor 1836, Street Address 1860) 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, “Blake Street Terrace (Tax Assessor 1836, Street Address 1860), Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/blake-street-terrace-tax-assessor-1836-street-address-1860-7af9536a (data as of July 9, 2026).