300 Montgomery Associates
Commercial in San Francisco, CA · 300 MONTGOMERY ST · 94104
At a glance
300 Montgomery Associates is a 213,539-square-foot commercial building at 300 MONTGOMERY ST in San Francisco, California, built in 1918. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 68 out of 100 (grade C), a site energy-use intensity of 54.1 kBtu/ft² and 722 tCO₂e of greenhouse-gas emissions. That score is higher than 23% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 68 (band C) |
| Site EUI | 54.1 kBtu/ft² |
| Source EUI | 101.5 kBtu/ft² |
| GHG emissions | 722 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 1,430,636 kWh |
| Gross floor area | 213,539 sq ft |
| Source record | sf:0260/010:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 68 | -12 | 54.1 kBtu/ft² | 722 tCO₂e |
| 2024 | 80 | -12 | 49.0 kBtu/ft² | 677 tCO₂e |
| 2023 | 92 | -4 | 24.2 kBtu/ft² | 358 tCO₂e |
| 2022 | 96 | 19.6 kBtu/ft² | 279 tCO₂e | |
| 2021 | — | 17.5 kBtu/ft² | 220 tCO₂e | |
| 2020 | — | 22.8 kBtu/ft² | 315 tCO₂e | |
| 2019 | — | 30.6 kBtu/ft² | 422 tCO₂e | |
| 2018 | 77 | +4 | 48.3 kBtu/ft² | 687 tCO₂e |
| 2017 | 73 | +4 | 49.6 kBtu/ft² | 705 tCO₂e |
| 2016 | 69 | -20 | 52.8 kBtu/ft² | 749 tCO₂e |
| 2015 | 89 | +2 | 38.8 kBtu/ft² | 649 tCO₂e |
| 2014 | 87 | -2 | 36.5 kBtu/ft² | 611 tCO₂e |
| 2013 | 89 | -2 | 34.9 kBtu/ft² | 584 tCO₂e |
| 2012 | 91 | ±0 | 32.6 kBtu/ft² | 608 tCO₂e |
| 2011 | 91 | 32.7 kBtu/ft² | 606 tCO₂e |
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 MONTGOMERY ST
- City
- San Francisco
- State
- California
- ZIP
- 94104
- Coordinates
- 37.79235, -122.40239
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does 300 Montgomery Associates 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 Montgomery Associates's ENERGY STAR score of 68 compares with an average of 78 across the 790 that report a score; it scores higher than 23% of them and lower than 76%. Its site EUI of 54.1 kBtu/ft² is roughly in line with the average of 49.2 kBtu/ft². Its emissions intensity of 3.4 kgCO₂e/ft² is about 25% above the group average of 2.7 kgCO₂e/ft².
At 213,539 sq ft, it is about twice the average floor area of 107,408 sq ft for those buildings. It was built in 1918, 23 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 Montgomery Associates's energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 300 Montgomery Associates, covering report years 2011–2025. Its ENERGY STAR score went from 91 in 2011 to 68 in 2025 (-23 points); its best year on file was 2022, at 96. Site EUI moved from 32.7 kBtu/ft² (2011) to 54.1 kBtu/ft² (2025), an 65% increase. Reported emissions went from 606 tCO₂e to 722 tCO₂e over the same span (up 19%).
What does an ENERGY STAR score of 68 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 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 points below 75, the threshold for ENERGY STAR certification. 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 Montgomery Associates's 54.1 kBtu/ft² across 213,539 sq ft works out to about 11.6 billion Btu (3,386 MWh-equivalent) in 2025. Its source EUI of 101.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,430,636 kWh of electricity for the year.
Which law requires 300 Montgomery Associates to report its energy use?
300 Montgomery Associates 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:0260/010:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
More commercial buildings in San Francisco
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Frequently asked questions
What is 300 Montgomery Associates's energy grade?
300 Montgomery Associates scores 68 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 300 Montgomery Associates use?
Its 2025 site energy-use intensity was 54.1 kBtu/ft² (101.5 kBtu/ft² source) across 213,539 sq ft, including 1,430,636 kWh of electricity.
What are 300 Montgomery Associates's carbon emissions?
300 Montgomery Associates reported 722 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2025.
Where is 300 Montgomery Associates?
300 Montgomery Associates is at 300 MONTGOMERY ST, in San Francisco, California 94104. Its coordinates are 37.79235, -122.40239 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 300 Montgomery Associates and when was it built?
300 Montgomery Associates has 213,539 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1918 as its year built. It is classed as commercial.
Is 300 Montgomery Associates 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 Montgomery Associates, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/300-montgomery-associates-32b17841 (data as of October 2, 2026).