2100 GREEN ST
Mixed Residential in San Francisco, CA · 94123
At a glance
2100 GREEN ST is a 74,122-square-foot mixed residential building in San Francisco, California. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 98 out of 100 (grade A), a site energy-use intensity of 37.6 kBtu/ft² and 136 tCO₂e of greenhouse-gas emissions. That score is higher than 57% of the 340 scored mixed residential buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 98 (band A) |
| Site EUI | 37.6 kBtu/ft² |
| Source EUI | 46.6 kBtu/ft² |
| GHG emissions | 136 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 80,732 kWh |
| Natural gas | 22,645 therms |
| Gross floor area | 74,122 sq ft |
| Source record | sf:0540/032:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 98 | 37.6 kBtu/ft² | 136 tCO₂e | |
| 2024 | — | — | — | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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
- 2100 GREEN ST
- City
- San Francisco
- State
- California
- ZIP
- 94123
- Coordinates
- 37.79659, -122.43398
Within ~1 km
Nearby benchmarked buildings
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- Pacific Professional Buildingscore 100
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- 1550 BAY STscore 100
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See also: most efficient in San Francisco · biggest emitters
How does 2100 GREEN ST compare with other mixed residential buildings in San Francisco?
The latest disclosures cover 610 mixed residential buildings in San Francisco, out of 2,509 buildings citywide. 2100 GREEN ST's ENERGY STAR score of 98 compares with an average of 85 across the 340 that report a score; it scores higher than 57% of them and lower than 38%. Its site EUI of 37.6 kBtu/ft² is roughly in line with the average of 36.0 kBtu/ft². Its emissions intensity of 2.0 kgCO₂e/ft² is roughly in line with the group average of 2.0 kgCO₂e/ft².
At 74,122 sq ft, it is about 55% below the average floor area of 165,572 sq ft for those buildings.
How has 2100 GREEN ST's energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for 2100 GREEN ST, covering report years 2018–2025. Only one of those years carries energy figures.
What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 falls in band A — high performer (85–100). 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. 2100 GREEN ST's 37.6 kBtu/ft² across 74,122 sq ft works out to about 2.8 billion Btu (817 MWh-equivalent) in 2025. Its source EUI of 46.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 80,732 kWh of electricity and 22,645 therms of natural gas for the year.
Which law requires 2100 GREEN ST to report its energy use?
2100 GREEN ST 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:0540/032:2025). 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 mixed residential buildings in San Francisco
- All Hallows Community· 73,879 sq ft · EUI 39.9 kBtu/ft²
- 1980 WASHINGTON ST· 73,872 sq ft · score 15 (D)
- 780 FULTON ST· 73,723 sq ft · score 98 (A)
- 75 FOLSOM ST· 73,700 sq ft
- Glenridge Coop· 73,548 sq ft
- 553 VALENCIA ST· 72,937 sq ft · EUI 5.6 kBtu/ft²
- Mixed Residential buildings in San Francisco· 610 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is 2100 GREEN ST's energy grade?
2100 GREEN ST scores 98 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2100 GREEN ST use?
Its 2025 site energy-use intensity was 37.6 kBtu/ft² (46.6 kBtu/ft² source) across 74,122 sq ft, including 80,732 kWh of electricity and 22,645 therms of natural gas.
What are 2100 GREEN ST's carbon emissions?
2100 GREEN ST reported 136 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2025.
Where is 2100 GREEN ST?
2100 GREEN ST is in San Francisco, California 94123. Its coordinates are 37.79659, -122.43398 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 2100 GREEN ST and when was it built?
2100 GREEN ST has 74,122 sq ft of gross floor area, as reported in its 2025 disclosure. It is classed as mixed residential.
Is 2100 GREEN ST 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, “2100 GREEN ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/2100-green-st-c40c1921 (data as of October 2, 2026).