At a glance
Seed Building 1520 Market is a 36,991-square-foot office building at 1520 Market St. in Denver, Colorado, built in 2017. In its 2023 Denver benchmarking disclosure it reported an ENERGY STAR score of 83 out of 100 (grade B), a site energy-use intensity of 49.8 kBtu/ft² and 200 tCO₂e of greenhouse-gas emissions. That score is higher than 64% of the 339 scored office buildings in Denver.
Energize Denver Building Performance Policy · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 83 (band B) |
| Site EUI | 49.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 200 tCO₂e |
| GHG intensity | — |
| Electricity | 293,411 kWh |
| Natural gas | 8,418 therms |
| Gross floor area | 36,991 sq ft |
| Source record | denver:6055:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 83 | 49.8 kBtu/ft² | 200 tCO₂e | |
| 2022 | — | 55.6 kBtu/ft² | 210 tCO₂e | |
| 2021 | — | 53.0 kBtu/ft² | 214 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
- 1520 Market St.
- 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 Seed Building 1520 Market compare with other office buildings in Denver?
The latest disclosures cover 427 office buildings in Denver, out of 3,287 buildings citywide. Seed Building 1520 Market's ENERGY STAR score of 83 compares with an average of 71 across the 339 that report a score; it scores higher than 64% of them and lower than 32%. Its site EUI of 49.8 kBtu/ft² is about 26% below the average of 67.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 36,991 sq ft, it is about 77% below the average floor area of 157,927 sq ft for those buildings. It was built in 2017, 37 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 Seed Building 1520 Market's energy performance changed over time?
BuildingCensus holds 3 Denver disclosures for Seed Building 1520 Market, covering report years 2021–2023. Site EUI moved from 53.0 kBtu/ft² (2021) to 49.8 kBtu/ft² (2023), a 6% decrease. Reported emissions went from 214 tCO₂e to 200 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 83 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 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Seed Building 1520 Market's 49.8 kBtu/ft² across 36,991 sq ft works out to about 1.8 billion Btu (540 MWh-equivalent) in 2023. The disclosure also reports 293,411 kWh of electricity and 8,418 therms of natural gas for the year.
Which law requires Seed Building 1520 Market to report its energy use?
Seed Building 1520 Market 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:6055:2023). 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
- Baurs· 36,821 sq ft · score 29 (D)
- Administration And Education Building· 36,701 sq ft · score 60 (C)
- Downing Np Tower· 36,005 sq ft · score 70 (B)
- 299 Milwaukee· 35,754 sq ft · score 24 (D)
- Leb Alliance Llc· 35,546 sq ft · score 91 (A)
- 2900 Welton St· 35,340 sq ft · score 9 (D)
- 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 Seed Building 1520 Market's energy grade?
Seed Building 1520 Market scores 83 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 Denver disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Seed Building 1520 Market use?
Its 2023 site energy-use intensity was 49.8 kBtu/ft² across 36,991 sq ft, including 293,411 kWh of electricity and 8,418 therms of natural gas.
What are Seed Building 1520 Market's carbon emissions?
Seed Building 1520 Market reported 200 tCO₂e of greenhouse-gas emissions for 2023.
Where is Seed Building 1520 Market?
Seed Building 1520 Market is at 1520 Market St., in Denver, Colorado 80202.
How big is Seed Building 1520 Market and when was it built?
Seed Building 1520 Market has 36,991 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2017 as its year built. It is classed as office.
Is Seed Building 1520 Market 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, “Seed Building 1520 Market, Denver, Colorado — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/denver/seed-building-1520-market-82c2b593 (data as of July 9, 2026).