BuildingCensus
A

Twentyone 01

Multifamily Housing in Denver, CO · 2101 & 2145 Market Street · 80205

ENERGY STAR score
96
band A · 2023
Site EUI
44.8
kBtu/ft²
GHG emissions
1,343
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
295,729
sq ft
Year built
2008
vintage

Energize Denver Building Performance Policy · reporting year 2023

Benchmarking record

FieldValue
ENERGY STAR score96 (band A)
Site EUI44.8 kBtu/ft²
Source EUI—
GHG emissions1,343 tCO₂e
GHG intensity—
Electricity1,836,046 kWh
Natural gas69,940 therms
Gross floor area295,729 sq ft
Source recorddenver:2251:2023

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2023latest96+2544.8 kBtu/ft²1,343 tCO₂e
202271+158.9 kBtu/ft²1,477 tCO₂e
20217055.3 kBtu/ft²1,356 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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
2101 & 2145 Market Street
City
Denver
State
Colorado
ZIP
80205

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

Frequently asked questions

What is Twentyone 01's energy grade?

Twentyone 01 scores 96 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 Twentyone 01 use?

Its 2023 site energy-use intensity was 44.8 kBtu/ft² across 295,729 sq ft, including 1,836,046 kWh of electricity and 69,940 therms of natural gas.

What are Twentyone 01's carbon emissions?

Twentyone 01 reported 1,343 tCO₂e of greenhouse-gas emissions for 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.

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Dataset updated . Source: Energize Denver Benchmarking disclosure, record denver:2251:2023.