300 Broadway Street
Commercial in San Francisco, CA · 300 BROADWAY · 94133
At a glance
300 Broadway Street is a 43,563-square-foot commercial building at 300 BROADWAY in San Francisco, California, built in 1921. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 36.8 kBtu/ft² and 87 tCO₂e of greenhouse-gas emissions. That score is higher than 46% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 84 (band B) |
| Site EUI | 36.8 kBtu/ft² |
| Source EUI | 54.9 kBtu/ft² |
| GHG emissions | 87 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 119,038 kWh |
| Natural gas | 11,951 therms |
| Gross floor area | 43,563 sq ft |
| Source record | sf:0143/002:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 84 | +9 | 36.8 kBtu/ft² | 87 tCO₂e |
| 2024 | 75 | -3 | 46.9 kBtu/ft² | 115 tCO₂e |
| 2023 | 78 | -10 | 45.9 kBtu/ft² | 114 tCO₂e |
| 2022 | 88 | 30.5 kBtu/ft² | 78 tCO₂e | |
| 2021 | — | 24.8 kBtu/ft² | 61 tCO₂e | |
| 2020 | — | 30.2 kBtu/ft² | 76 tCO₂e | |
| 2019 | 74 | -6 | 43.2 kBtu/ft² | 108 tCO₂e |
| 2018 | 80 | -15 | 35.0 kBtu/ft² | 92 tCO₂e |
| 2017 | 95 | +1 | 31.1 kBtu/ft² | 87 tCO₂e |
| 2016 | 94 | +5 | 30.0 kBtu/ft² | 94 tCO₂e |
| 2015 | 89 | +2 | 40.6 kBtu/ft² | 115 tCO₂e |
| 2014 | 87 | +5 | 37.5 kBtu/ft² | 111 tCO₂e |
| 2013 | 82 | 52.0 kBtu/ft² | 147 tCO₂e | |
| 2012 | — | 63.7 kBtu/ft² | 178 tCO₂e | |
| 2011 | — | — | — |
Compliance context
SF Environment Code Chapter 20
San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 300 BROADWAY
- City
- San Francisco
- State
- California
- ZIP
- 94133
- Coordinates
- 37.79868, -122.40264
Within ~1 km
Nearby benchmarked buildings
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- One Market Plazascore 79
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- 555 California Streetscore 76
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- 500 BATTERY STscore —
Mixed Residential · 1,779,579 sq ft
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See also: most efficient in San Francisco · biggest emitters
How does 300 Broadway Street compare with other commercial buildings in San Francisco?
The latest disclosures cover 1,683 commercial buildings in San Francisco, out of 2,509 buildings citywide. 300 Broadway Street's ENERGY STAR score of 84 compares with an average of 78 across the 790 that report a score; it scores higher than 46% of them and lower than 52%. Its site EUI of 36.8 kBtu/ft² is about 25% below the average of 49.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.0 kgCO₂e/ft² is about 26% below the group average of 2.7 kgCO₂e/ft².
At 43,563 sq ft, it is about 59% below the average floor area of 107,408 sq ft for those buildings. It was built in 1921, 20 years earlier than the group's average year built (1941). Across all 24 jurisdictions BuildingCensus covers, the 2,307 commercial buildings average an ENERGY STAR score of 76 and a site EUI of 51.3 kBtu/ft².
How has 300 Broadway Street's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 300 Broadway Street, covering report years 2011–2025. Its ENERGY STAR score went from 82 in 2013 to 84 in 2025 (+2 points); its best year on file was 2017, at 95. Site EUI moved from 63.7 kBtu/ft² (2012) to 36.8 kBtu/ft² (2025), a 42% decrease. Reported emissions went from 178 tCO₂e to 87 tCO₂e over the same span (down 51%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 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 San Francisco, 73% 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. 300 Broadway Street's 36.8 kBtu/ft² across 43,563 sq ft works out to about 1.6 billion Btu (470 MWh-equivalent) in 2025. Its source EUI of 54.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 119,038 kWh of electricity and 11,951 therms of natural gas for the year.
Which law requires 300 Broadway Street to report its energy use?
300 Broadway Street reports under SF Environment Code Chapter 20, the legal basis of San Francisco's Existing Buildings Energy Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record sf:0143/002:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
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Frequently asked questions
What is 300 Broadway Street's energy grade?
300 Broadway Street scores 84 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 300 Broadway Street use?
Its 2025 site energy-use intensity was 36.8 kBtu/ft² (54.9 kBtu/ft² source) across 43,563 sq ft, including 119,038 kWh of electricity and 11,951 therms of natural gas.
What are 300 Broadway Street's carbon emissions?
300 Broadway Street reported 87 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2025.
Where is 300 Broadway Street?
300 Broadway Street is at 300 BROADWAY, in San Francisco, California 94133. Its coordinates are 37.79868, -122.40264 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 300 Broadway Street and when was it built?
300 Broadway Street has 43,563 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1921 as its year built. It is classed as commercial.
Is 300 Broadway Street covered by SF Environment Code Chapter 20?
Yes — it appears in the 2025 Existing Buildings Energy Performance Ordinance disclosure, which lists the buildings reporting under SF Environment Code Chapter 20.
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About this data
Source: Existing Buildings Energy Performance Ordinance (SF Environment Code Chapter 20), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “300 Broadway Street, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/300-broadway-street-87e1d6d8 (data as of October 2, 2026).