101 Second Street- Whole Bldg
Office in California, CA · 101 2Nd Street, San Francisco · 94105
At a glance
101 Second Street- Whole Bldg is a 432,843-square-foot office building at 101 2Nd Street, San Francisco in San Francisco, California, built in 1999. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 93 out of 100 (grade A), a site energy-use intensity of 23.8 kBtu/ft² and 731 tCO₂e of greenhouse-gas emissions. That score is higher than 72% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 93 (band A) |
| Site EUI | 23.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 731 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 3,020,628 kWh |
| Gross floor area | 432,843 sq ft |
| Source record | california:3969365:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 93 | -4 | 23.8 kBtu/ft² | 731 tCO₂e |
| 2020 | 97 | +9 | 27.5 kBtu/ft² | 787 tCO₂e |
| 2019 | 88 | +1 | 40.3 kBtu/ft² | 1,231 tCO₂e |
| 2018 | 87 | 38.9 kBtu/ft² | 1,186 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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- 555 California Streetscore 76
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See also: most efficient in California · biggest emitters
How does 101 Second Street- Whole Bldg 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 Street- Whole Bldg's ENERGY STAR score of 93 compares with an average of 75 across the 4,912 that report a score; it scores higher than 72% of them and lower than 25%. Its site EUI of 23.8 kBtu/ft² is about 58% 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 1.7 kgCO₂e/ft² is about half of the group average of 3.6 kgCO₂e/ft².
At 432,843 sq ft, it is about 185% 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 Street- Whole Bldg's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 101 Second Street- Whole Bldg, covering report years 2018, 2019, 2020, 2023. Its ENERGY STAR score went from 87 in 2018 to 93 in 2023 (+6 points); its best year on file was 2020, at 97. Site EUI moved from 38.9 kBtu/ft² (2018) to 23.8 kBtu/ft² (2023), a 39% decrease. Reported emissions went from 1,186 tCO₂e to 731 tCO₂e over the same span (down 38%).
What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 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 Street- Whole Bldg's 23.8 kBtu/ft² across 432,843 sq ft works out to about 10.3 billion Btu (3,019 MWh-equivalent) in 2023. The disclosure also reports 3,020,628 kWh of electricity for the year.
Which law requires 101 Second Street- Whole Bldg to report its energy use?
101 Second Street- Whole Bldg 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 2023 disclosure (source record california:3969365:2023). 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
- 6300 Wilshire· 432,424 sq ft · score 93 (A)
- Y-North Mary Buildings· 431,648 sq ft
- Copy Of Warner Center(Office Building)· 431,645 sq ft · score 100 (A)
- 034 Capitol Annex Swing Space· 431,164 sq ft · score 67 (C)
- Enterprise Technology Center· 430,890 sq ft · score 100 (A)
- Shoreline Square· 430,177 sq ft · score 89 (A)
- 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 Street- Whole Bldg's energy grade?
101 Second Street- Whole Bldg scores 93 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 101 Second Street- Whole Bldg use?
Its 2023 site energy-use intensity was 23.8 kBtu/ft² across 432,843 sq ft, including 3,020,628 kWh of electricity.
What are 101 Second Street- Whole Bldg's carbon emissions?
101 Second Street- Whole Bldg reported 731 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2023.
Where is 101 Second Street- Whole Bldg?
101 Second Street- Whole Bldg 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 Street- Whole Bldg and when was it built?
101 Second Street- Whole Bldg has 432,843 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1999 as its year built. It is classed as office.
Is 101 Second Street- Whole Bldg covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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 Street- Whole Bldg, San Francisco, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/101-second-street-whole-bldg-7496b192 (data as of July 9, 2026).