2727 Mariposa St.
Commercial in San Francisco, CA · 2727 MARIPOSA ST. · 94110
At a glance
2727 Mariposa St. is a 54,765-square-foot commercial building at 2727 MARIPOSA ST. in San Francisco, California, built in 1923. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 24.5 kBtu/ft² and 76 tCO₂e of greenhouse-gas emissions. That score is higher than 61% of the 790 scored commercial buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 90 (band A) |
| Site EUI | 24.5 kBtu/ft² |
| Source EUI | 65.3 kBtu/ft² |
| GHG emissions | 76 tCO₂e |
| GHG intensity | 1.4 kgCO₂e/ft² |
| Electricity | 362,975 kWh |
| Natural gas | 1,015 therms |
| Gross floor area | 54,765 sq ft |
| Source record | sf:4017/002:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 90 | -1 | 24.5 kBtu/ft² | 76 tCO₂e |
| 2024 | 91 | ±0 | 25.5 kBtu/ft² | 91 tCO₂e |
| 2023 | 91 | 25.7 kBtu/ft² | 98 tCO₂e | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — | |
| 2017 | 23 | 73.6 kBtu/ft² | 195 tCO₂e | |
| 2016 | — | — | — | |
| 2015 | — | — | — | |
| 2014 | — | — | — | |
| 2013 | — | — | — | |
| 2012 | — | — | — | |
| 2011 | — | — | — |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 2727 MARIPOSA ST.
- City
- San Francisco
- State
- California
- ZIP
- 94110
- Coordinates
- 37.76269, -122.41074
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does 2727 Mariposa St. 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. 2727 Mariposa St.'s ENERGY STAR score of 90 compares with an average of 78 across the 790 that report a score; it scores higher than 61% of them and lower than 37%. Its site EUI of 24.5 kBtu/ft² is about half of the average of 49.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.4 kgCO₂e/ft² is about half of the group average of 2.7 kgCO₂e/ft².
At 54,765 sq ft, it is about half of the average floor area of 107,408 sq ft for those buildings. It was built in 1923, 18 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 2727 Mariposa St.'s energy performance changed over time?
BuildingCensus holds 15 San Francisco disclosures for 2727 Mariposa St., covering report years 2011–2025. Its ENERGY STAR score went from 23 in 2017 to 90 in 2025 (+67 points); its best year on file was 2023, at 91. Site EUI moved from 73.6 kBtu/ft² (2017) to 24.5 kBtu/ft² (2025), a 67% decrease. Reported emissions went from 195 tCO₂e to 76 tCO₂e over the same span (down 61%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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 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. 2727 Mariposa St.'s 24.5 kBtu/ft² across 54,765 sq ft works out to about 1.3 billion Btu (393 MWh-equivalent) in 2025. Its source EUI of 65.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 362,975 kWh of electricity and 1,015 therms of natural gas for the year.
Which law requires 2727 Mariposa St. to report its energy use?
2727 Mariposa St. 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:4017/002:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
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- Commercial buildings in San Francisco· 1,683 benchmarked
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Frequently asked questions
What is 2727 Mariposa St.'s energy grade?
2727 Mariposa St. scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2727 Mariposa St. use?
Its 2025 site energy-use intensity was 24.5 kBtu/ft² (65.3 kBtu/ft² source) across 54,765 sq ft, including 362,975 kWh of electricity and 1,015 therms of natural gas.
What are 2727 Mariposa St.'s carbon emissions?
2727 Mariposa St. reported 76 tCO₂e of greenhouse-gas emissions (1.4 kgCO₂e/ft²) for 2025.
Where is 2727 Mariposa St.?
2727 Mariposa St. is at 2727 MARIPOSA ST., in San Francisco, California 94110. Its coordinates are 37.76269, -122.41074 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 2727 Mariposa St. and when was it built?
2727 Mariposa St. has 54,765 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1923 as its year built. It is classed as commercial.
Is 2727 Mariposa St. 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, “2727 Mariposa St., San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/2727-mariposa-st-a72261d7 (data as of October 2, 2026).