111 Maiden Lane
Office in California, CA · 111 Maiden Lane, San Francisco · 94108
At a glance
111 Maiden Lane is a 91,299-square-foot office building at 111 Maiden Lane, San Francisco in San Francisco, California, built in 1908. In its 2021 California benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 34.2 kBtu/ft² and 185 tCO₂e of greenhouse-gas emissions. That score is higher than 42% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2021
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 80 (band B) |
| Site EUI | 34.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 185 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 763,265 kWh |
| Natural gas | 5,181 therms |
| Gross floor area | 91,299 sq ft |
| Source record | california:3092367:2021 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2021latest | 80 | +10 | 34.2 kBtu/ft² | 185 tCO₂e |
| 2020 | 70 | -1 | 48.1 kBtu/ft² | 274 tCO₂e |
| 2019 | 71 | -9 | 54.9 kBtu/ft² | 325 tCO₂e |
| 2018 | 80 | 45.5 kBtu/ft² | 265 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
- 111 Maiden Lane, San Francisco
- City
- California
- State
- California
- ZIP
- 94108
- Coordinates
- 37.78816, -122.40566
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 111 Maiden Lane compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 111 Maiden Lane's ENERGY STAR score of 80 compares with an average of 75 across the 4,912 that report a score; it scores higher than 42% of them and lower than 56%. Its site EUI of 34.2 kBtu/ft² is about 39% 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 2.0 kgCO₂e/ft² is about 44% below the group average of 3.6 kgCO₂e/ft².
At 91,299 sq ft, it is about 40% below the average floor area of 151,937 sq ft for those buildings. It was built in 1908, 77 years earlier 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 111 Maiden Lane's energy performance changed over time?
BuildingCensus holds 4 California disclosures for 111 Maiden Lane, covering report years 2018–2021. Its ENERGY STAR score was 80 in both 2018 and 2021. Site EUI moved from 45.5 kBtu/ft² (2018) to 34.2 kBtu/ft² (2021), a 25% decrease. Reported emissions went from 265 tCO₂e to 185 tCO₂e over the same span (down 30%).
What does an ENERGY STAR score of 80 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 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 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 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. 111 Maiden Lane's 34.2 kBtu/ft² across 91,299 sq ft works out to about 3.1 billion Btu (915 MWh-equivalent) in 2021. The disclosure also reports 763,265 kWh of electricity and 5,181 therms of natural gas for the year.
Which law requires 111 Maiden Lane to report its energy use?
111 Maiden Lane 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 2021 disclosure (source record california:3092367:2021). 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
- Scv - Forge 01 (Fg01)· 91,195 sq ft · score 61 (C)
- Long Beach (Redondo) (State Owned) No P· 91,189 sq ft · EUI 31.2 kBtu/ft²
- 101 Enterprise· 91,172 sq ft · EUI 26.0 kBtu/ft²
- Franklin Resources - 3344 Quality Drive· 91,152 sq ft · score 83 (B)
- Ca9971 - California Svc Center· 91,146 sq ft · score 38 (D)
- C&W Symantec Mvcb· 91,068 sq ft · score 65 (C)
- 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 111 Maiden Lane's energy grade?
111 Maiden Lane scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2021 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 111 Maiden Lane use?
Its 2021 site energy-use intensity was 34.2 kBtu/ft² across 91,299 sq ft, including 763,265 kWh of electricity and 5,181 therms of natural gas.
What are 111 Maiden Lane's carbon emissions?
111 Maiden Lane reported 185 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2021.
Where is 111 Maiden Lane?
111 Maiden Lane is at 111 Maiden Lane, San Francisco, in San Francisco, California 94108. Its coordinates are 37.78816, -122.40566 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 111 Maiden Lane and when was it built?
111 Maiden Lane has 91,299 sq ft of gross floor area, as reported in its 2021 disclosure. The disclosure lists 1908 as its year built. It is classed as office.
Is 111 Maiden Lane covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2021 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, “111 Maiden Lane, San Francisco, California — 2021 benchmarking disclosure”, https://buildingcensus.com/buildings/california/111-maiden-lane-0155ad68 (data as of July 9, 2026).