At a glance
Bolt Factory Lofts is a 31,876-square-foot office building at 209 Kalamath Street in Denver, Colorado, built in 2015. In its 2023 Denver benchmarking disclosure it reported a site energy-use intensity of 46.3 kBtu/ft² and 144 tCO₂e of greenhouse-gas emissions.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 46.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 144 tCO₂e |
| GHG intensity | — |
| Electricity | 188,835 kWh |
| Natural gas | 8,319 therms |
| Gross floor area | 31,876 sq ft |
| Source record | denver:3297:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 46.3 kBtu/ft² | 144 tCO₂e | |
| 2022 | — | 49.0 kBtu/ft² | 149 tCO₂e | |
| 2021 | — | 49.5 kBtu/ft² | 162 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
- 209 Kalamath Street
- City
- Denver
- State
- Colorado
- ZIP
- 80223
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 Bolt Factory Lofts compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Its site EUI of 46.3 kBtu/ft² is about 31% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 31,876 sq ft, it is about 80% below the average floor area of 157,927 sq ft for those buildings. It was built in 2015, 35 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 Bolt Factory Lofts's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Bolt Factory Lofts, covering report years 2021–2023. Site EUI moved from 49.5 kBtu/ft² (2021) to 46.3 kBtu/ft² (2023), a 6% decrease. Reported emissions went from 162 tCO₂e to 144 tCO₂e over the same span (down 11%).
What does a site EUI of 46.3 kBtu/ft² mean?
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. Bolt Factory Lofts's 46.3 kBtu/ft² across 31,876 sq ft works out to about 1.5 billion Btu (433 MWh-equivalent) in 2023. The disclosure also reports 188,835 kWh of electricity and 8,319 therms of natural gas for the year.
Which law requires Bolt Factory Lofts to report its energy use?
Bolt Factory Lofts 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:3297:2023). 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
- 252 Clayton· 31,438 sq ft · score 17 (D)
- 1221 S. Clarkson St· 31,333 sq ft · score 34 (D)
- 2727 Bryant St.· 30,954 sq ft · score 81 (B)
- Elbra M. Wedgeworth Municipal Building· 30,875 sq ft · score 81 (B)
- Monaco· 30,663 sq ft · score 82 (B)
- Choo Choo Llc Union Square· 30,352 sq ft · score 61 (C)
- 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 Bolt Factory Lofts's energy grade?
Bolt Factory Lofts did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 46.3 kBtu/ft².
How much energy does Bolt Factory Lofts use?
Its 2023 site energy-use intensity was 46.3 kBtu/ft² across 31,876 sq ft, including 188,835 kWh of electricity and 8,319 therms of natural gas.
What are Bolt Factory Lofts's carbon emissions?
Bolt Factory Lofts reported 144 tCO₂e of greenhouse-gas emissions for 2023.
Where is Bolt Factory Lofts?
Bolt Factory Lofts is at 209 Kalamath Street, in Denver, Colorado 80223.
How big is Bolt Factory Lofts and when was it built?
Bolt Factory Lofts has 31,876 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2015 as its year built. It is classed as office.
Is Bolt Factory Lofts 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, “Bolt Factory Lofts, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/bolt-factory-lofts-67ecbe7e (data as of July 9, 2026).