Mark Hopkins 2
Commercial in San Francisco, CA · 999 California St · 94108
At a glance
Mark Hopkins 2 is a 386,588-square-foot commercial building at 999 California St in San Francisco, California, built in 1926. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 53 out of 100 (grade D), a site energy-use intensity of 63.8 kBtu/ft² and 1,543 tCO₂e of greenhouse-gas emissions. That score is higher than 13% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 53 (band D) |
| Site EUI | 63.8 kBtu/ft² |
| Source EUI | 109.3 kBtu/ft² |
| GHG emissions | 1,543 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 2,351,225 kWh |
| Natural gas | 15,817 therms |
| Gross floor area | 386,588 sq ft |
| Source record | sf:0255/002:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 53 | +20 | 63.8 kBtu/ft² | 1,543 tCO₂e |
| 2024 | 33 | -41 | 76.6 kBtu/ft² | 1,944 tCO₂e |
| 2023 | 74 | -16 | 96.7 kBtu/ft² | 2,339 tCO₂e |
| 2022 | 90 | 72.5 kBtu/ft² | 1,736 tCO₂e | |
| 2021 | — | 56.4 kBtu/ft² | 1,299 tCO₂e | |
| 2020 | — | 21.4 kBtu/ft² | 496 tCO₂e | |
| 2019 | 88 | +6 | 77.7 kBtu/ft² | 1,864 tCO₂e |
| 2018 | 82 | +7 | 82.1 kBtu/ft² | 1,977 tCO₂e |
| 2017 | 75 | 81.8 kBtu/ft² | 1,892 tCO₂e | |
| 2016 | — | — | — | |
| 2015 | — | — | — | |
| 2014 | — | — | — | |
| 2013 | — | — | — | |
| 2012 | — | — | — |
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
- 999 California St
- City
- San Francisco
- State
- California
- ZIP
- 94108
- Coordinates
- 37.79140, -122.41025
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does Mark Hopkins 2 compare with other commercial buildings in San Francisco?
The latest disclosures cover 1,683 commercial buildings in San Francisco, out of 2,509 buildings citywide. Mark Hopkins 2's ENERGY STAR score of 53 compares with an average of 78 across the 790 that report a score; it scores higher than 13% of them and lower than 86%. Its site EUI of 63.8 kBtu/ft² is about 30% above the average of 49.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.0 kgCO₂e/ft² is about 48% above the group average of 2.7 kgCO₂e/ft².
At 386,588 sq ft, it is about 260% above the average floor area of 107,408 sq ft for those buildings. It was built in 1926, 15 years earlier than the group's average year built (1941). Across all 24 jurisdictions BuildingCensus covers, the 2,307 commercial buildings average an ENERGY STAR score of 76 and a site EUI of 51.3 kBtu/ft².
How has Mark Hopkins 2's energy performance changed over time?
BuildingCensus holds 14 San Francisco disclosures for Mark Hopkins 2, covering report years 2012–2025. Its ENERGY STAR score went from 75 in 2017 to 53 in 2025 (-22 points); its best year on file was 2022, at 90. Site EUI moved from 81.8 kBtu/ft² (2017) to 63.8 kBtu/ft² (2025), a 22% decrease. Reported emissions went from 1,892 tCO₂e to 1,543 tCO₂e over the same span (down 18%).
What does an ENERGY STAR score of 53 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 53 means the building performs better than about 53% of its national peers. BuildingCensus bands the score into report-card grades; 53 falls in band D — lowest band (1–54). It sits 22 points below 75, the threshold for ENERGY STAR certification. 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. Mark Hopkins 2's 63.8 kBtu/ft² across 386,588 sq ft works out to about 24.7 billion Btu (7,228 MWh-equivalent) in 2025. Its source EUI of 109.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,351,225 kWh of electricity and 15,817 therms of natural gas for the year.
Which law requires Mark Hopkins 2 to report its energy use?
Mark Hopkins 2 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:0255/002:2025). 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 commercial buildings in San Francisco
- Mason O'Farrell Garage· 384,162 sq ft · EUI 337.5 kBtu/ft²
- 505 Montgomery· 375,233 sq ft · score 76 (B)
- S001-San Francisco· 374,244 sq ft · score 57 (C)
- 580 California Street· 372,315 sq ft · score 89 (A)
- 875 Stevenson· 368,280 sq ft · EUI 13.1 kBtu/ft²
- 333 SCHWERIN ST· 368,000 sq ft · score 31 (D)
- Commercial buildings in San Francisco· 1,683 benchmarked
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Frequently asked questions
What is Mark Hopkins 2's energy grade?
Mark Hopkins 2 scores 53 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Mark Hopkins 2 use?
Its 2025 site energy-use intensity was 63.8 kBtu/ft² (109.3 kBtu/ft² source) across 386,588 sq ft, including 2,351,225 kWh of electricity and 15,817 therms of natural gas.
What are Mark Hopkins 2's carbon emissions?
Mark Hopkins 2 reported 1,543 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2025.
Where is Mark Hopkins 2?
Mark Hopkins 2 is at 999 California St, in San Francisco, California 94108. Its coordinates are 37.79140, -122.41025 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is Mark Hopkins 2 and when was it built?
Mark Hopkins 2 has 386,588 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1926 as its year built. It is classed as commercial.
Is Mark Hopkins 2 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, “Mark Hopkins 2, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/mark-hopkins-2-b3ef8c3d (data as of October 2, 2026).