101 Second St
Office in California, CA · 101 2Nd Street, San Francisco · 94105
At a glance
101 Second St is a 442,513-square-foot office building at 101 2Nd Street, San Francisco in San Francisco, California, built in 1999. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 22.2 kBtu/ft² and 653 tCO₂e of greenhouse-gas emissions. That score is higher than 78% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 95 (band A) |
| Site EUI | 22.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 653 tCO₂e |
| GHG intensity | 1.5 kgCO₂e/ft² |
| Electricity | 2,883,997 kWh |
| Gross floor area | 442,513 sq ft |
| Source record | california:1140548:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | +2 | 22.2 kBtu/ft² | 653 tCO₂e |
| 2022 | 93 | -2 | 23.2 kBtu/ft² | 687 tCO₂e |
| 2021 | 95 | -2 | 19.0 kBtu/ft² | 499 tCO₂e |
| 2020 | 97 | +5 | 21.9 kBtu/ft² | 630 tCO₂e |
| 2018 | 92 | 31.6 kBtu/ft² | 963 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 101 2Nd Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94105
- Coordinates
- 37.78807, -122.39921
Within ~1 km
Nearby benchmarked buildings
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- One Market Plazascore 80
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- 555 California Streetscore 76
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See also: most efficient in California · biggest emitters
How does 101 Second St compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 101 Second St's ENERGY STAR score of 95 compares with an average of 75 across the 4,912 that report a score; it scores higher than 78% of them and lower than 20%. Its site EUI of 22.2 kBtu/ft² is about 61% below the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.5 kgCO₂e/ft² is about 59% below the group average of 3.6 kgCO₂e/ft².
At 442,513 sq ft, it is about 191% above the average floor area of 151,937 sq ft for those buildings. It was built in 1999, 14 years later than the group's average year built (1985). 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 101 Second St's energy performance changed over time?
BuildingCensus holds 5 California disclosures for 101 Second St, covering report years 2018, 2020, 2021, 2022, 2024. Its ENERGY STAR score went from 92 in 2018 to 95 in 2024 (+3 points); its best year on file was 2020, at 97. Site EUI moved from 31.6 kBtu/ft² (2018) to 22.2 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 963 tCO₂e to 653 tCO₂e over the same span (down 32%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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 California, 65% 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. 101 Second St's 22.2 kBtu/ft² across 442,513 sq ft works out to about 9.8 billion Btu (2,879 MWh-equivalent) in 2024. The disclosure also reports 2,883,997 kWh of electricity for the year.
Which law requires 101 Second St to report its energy use?
101 Second St reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:1140548:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More office buildings in California
- Emerald Plaza· 441,096 sq ft · score 85 (A)
- The Landmark @ One Market· 440,955 sq ft · score 90 (A)
- 515 S. Figueroa Street· 440,096 sq ft · score 88 (A)
- Procopio Tower At 525 B Street· 439,756 sq ft · score 92 (A)
- 512 Junipero Serra (Broadway State Build· 439,389 sq ft · score 75 (B)
- Ftba· 438,739 sq ft · EUI 213.8 kBtu/ft²
- Office buildings in California· 6,214 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is 101 Second St's energy grade?
101 Second St scores 95 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 101 Second St use?
Its 2024 site energy-use intensity was 22.2 kBtu/ft² across 442,513 sq ft, including 2,883,997 kWh of electricity.
What are 101 Second St's carbon emissions?
101 Second St reported 653 tCO₂e of greenhouse-gas emissions (1.5 kgCO₂e/ft²) for 2024.
Where is 101 Second St?
101 Second St is at 101 2Nd Street, San Francisco, in San Francisco, California 94105. Its coordinates are 37.78807, -122.39921 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 101 Second St and when was it built?
101 Second St has 442,513 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1999 as its year built. It is classed as office.
Is 101 Second St covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “101 Second St, San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/101-second-st-874a04d6 (data as of July 9, 2026).