505 Montgomery-505
Office in California, CA · 505 Montgomery Street, San Francisco · 94111
At a glance
505 Montgomery-505 is a 365,466-square-foot office building at 505 Montgomery Street, San Francisco in San Francisco, California, built in 1988. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 81 out of 100 (grade B), a site energy-use intensity of 41.2 kBtu/ft² and 931 tCO₂e of greenhouse-gas emissions. That score is higher than 44% 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 | 81 (band B) |
| Site EUI | 41.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 931 tCO₂e |
| GHG intensity | 2.5 kgCO₂e/ft² |
| Electricity | 2,856,812 kWh |
| Natural gas | 53,576 therms |
| Gross floor area | 365,466 sq ft |
| Source record | california:28736:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 81 | 41.2 kBtu/ft² | 931 tCO₂e | |
| 2023 | — | — | 1,073 tCO₂e | |
| 2022 | 79 | +3 | 42.2 kBtu/ft² | 966 tCO₂e |
| 2021 | 76 | +36 | 47.0 kBtu/ft² | 981 tCO₂e |
| 2020 | 40 | -36 | 74.5 kBtu/ft² | 1,670 tCO₂e |
| 2019 | 76 | -1 | 48.4 kBtu/ft² | 1,140 tCO₂e |
| 2018 | 77 | 43.9 kBtu/ft² | 1,056 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 505 Montgomery Street, San Francisco
- City
- California
- State
- California
- ZIP
- 94111
- Coordinates
- 37.79391, -122.40332
Within ~1 km
Nearby benchmarked buildings
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- PGE-GO Complexscore —
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- 555 California Streetscore 76
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- 500 BATTERY STscore —
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See also: most efficient in California · biggest emitters
How does 505 Montgomery-505 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 505 Montgomery-505's ENERGY STAR score of 81 compares with an average of 75 across the 4,912 that report a score; it scores higher than 44% of them and lower than 54%. Its site EUI of 41.2 kBtu/ft² is about 27% 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 2.5 kgCO₂e/ft² is about 29% below the group average of 3.6 kgCO₂e/ft².
At 365,466 sq ft, it is about 141% above the average floor area of 151,937 sq ft for those buildings. It was built in 1988, 3 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 505 Montgomery-505's energy performance changed over time?
BuildingCensus holds 7 California disclosures for 505 Montgomery-505, covering report years 2018–2024. Its ENERGY STAR score went from 77 in 2018 to 81 in 2024 (+4 points). Site EUI moved from 43.9 kBtu/ft² (2018) to 41.2 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 1,056 tCO₂e to 931 tCO₂e over the same span (down 12%).
What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 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. 505 Montgomery-505's 41.2 kBtu/ft² across 365,466 sq ft works out to about 15.1 billion Btu (4,413 MWh-equivalent) in 2024. The disclosure also reports 2,856,812 kWh of electricity and 53,576 therms of natural gas for the year.
Which law requires 505 Montgomery-505 to report its energy use?
505 Montgomery-505 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:28736:2024). 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
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- 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 505 Montgomery-505's energy grade?
505 Montgomery-505 scores 81 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 505 Montgomery-505 use?
Its 2024 site energy-use intensity was 41.2 kBtu/ft² across 365,466 sq ft, including 2,856,812 kWh of electricity and 53,576 therms of natural gas.
What are 505 Montgomery-505's carbon emissions?
505 Montgomery-505 reported 931 tCO₂e of greenhouse-gas emissions (2.5 kgCO₂e/ft²) for 2024.
Where is 505 Montgomery-505?
505 Montgomery-505 is at 505 Montgomery Street, San Francisco, in San Francisco, California 94111. Its coordinates are 37.79391, -122.40332 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 505 Montgomery-505 and when was it built?
505 Montgomery-505 has 365,466 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as office.
Is 505 Montgomery-505 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, “505 Montgomery-505, San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/505-montgomery-505-f3f90f2a (data as of July 9, 2026).