Horace Mann
K-12 School in Denver, CO · 4130 Navajo Street · 80211
At a glance
Horace Mann is a 142,973-square-foot K-12 school at 4130 Navajo Street in Denver, Colorado, built in 1931. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 52 out of 100 (grade D), a site energy-use intensity of 67.5 kBtu/ft² and 656 tCO₂e of greenhouse-gas emissions. That score is higher than 37% of the 189 scored K-12 school buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 52 (band D) |
| Site EUI | 67.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 656 tCO₂e |
| GHG intensity | — |
| Electricity | 412,850 kWh |
| Natural gas | 82,470 therms |
| Gross floor area | 142,973 sq ft |
| Source record | denver:2005:2023 |
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
- 4130 Navajo Street
- City
- Denver
- State
- Colorado
- ZIP
- 80211
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 Horace Mann compare with other K-12 school buildings in Denver?
The latest disclosures cover 192 K-12 school buildings in Denver, out of 3,287 buildings citywide. Horace Mann's ENERGY STAR score of 52 compares with an average of 58 across the 189 that report a score; it scores higher than 37% of them and lower than 61%. Its site EUI of 67.5 kBtu/ft² is roughly in line with the average of 62.9 kBtu/ft².
At 142,973 sq ft, it is about 55% above the average floor area of 92,016 sq ft for those buildings. It was built in 1931, 35 years earlier than the group's average year built (1966). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
What does an ENERGY STAR score of 52 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 52 means the building performs better than about 52% of its national peers. BuildingCensus bands the score into report-card grades; 52 falls in band D — lowest band (1–54). It sits 23 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. Horace Mann's 67.5 kBtu/ft² across 142,973 sq ft works out to about 9.7 billion Btu (2,828 MWh-equivalent) in 2023. The disclosure also reports 412,850 kWh of electricity and 82,470 therms of natural gas for the year.
Which law requires Horace Mann to report its energy use?
Horace Mann 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:2005:2023). 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 K-12 school buildings in Denver
- Cec Middle College· 137,352 sq ft · score 30 (D)
- Henry· 133,453 sq ft · score 52 (D)
- Morey· 130,669 sq ft · score 38 (D)
- Merrill· 128,209 sq ft · score 72 (B)
- Far Northeast Campus· 126,586 sq ft · score 94 (A)
- Samsonite Campus (High Tech Early College)· 124,352 sq ft · score 59 (C)
- K-12 School buildings in Denver· 192 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 Horace Mann's energy grade?
Horace Mann scores 52 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 Horace Mann use?
Its 2023 site energy-use intensity was 67.5 kBtu/ft² across 142,973 sq ft, including 412,850 kWh of electricity and 82,470 therms of natural gas.
What are Horace Mann's carbon emissions?
Horace Mann reported 656 tCO₂e of greenhouse-gas emissions for 2023.
Where is Horace Mann?
Horace Mann is at 4130 Navajo Street, in Denver, Colorado 80211.
How big is Horace Mann and when was it built?
Horace Mann has 142,973 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1931 as its year built. It is classed as K-12 school.
Is Horace Mann 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, “Horace Mann, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/horace-mann-375e877c (data as of July 9, 2026).