1601 MARIPOSA ST
Multifamily in San Francisco, CA · 94107
At a glance
1601 MARIPOSA ST is a 126,000-square-foot multifamily building in San Francisco, California, built in 2020. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 78 out of 100 (grade B), a site energy-use intensity of 52.2 kBtu/ft² and 364 tCO₂e of greenhouse-gas emissions. That score is higher than 19% of the 129 scored multifamily buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 78 (band B) |
| Site EUI | 52.2 kBtu/ft² |
| Source EUI | 106.9 kBtu/ft² |
| GHG emissions | 364 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 1,100,523 kWh |
| Natural gas | 28,194 therms |
| Gross floor area | 126,000 sq ft |
| Source record | sf:4005A/002:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 78 | -1 | 52.2 kBtu/ft² | 364 tCO₂e |
| 2024 | 79 | 53.2 kBtu/ft² | 404 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | 75 | 59.4 kBtu/ft² | 451 tCO₂e | |
| 2021 | — | 49.2 kBtu/ft² | 375 tCO₂e | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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
- 1601 MARIPOSA ST
- City
- San Francisco
- State
- California
- ZIP
- 94107
- Coordinates
- 37.76301, -122.39949
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does 1601 MARIPOSA ST compare with other multifamily buildings in San Francisco?
The latest disclosures cover 192 multifamily buildings in San Francisco, out of 2,509 buildings citywide. 1601 MARIPOSA ST's ENERGY STAR score of 78 compares with an average of 86 across the 129 that report a score; it scores higher than 19% of them and lower than 78%. Its site EUI of 52.2 kBtu/ft² is about 50% above the average of 34.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.9 kgCO₂e/ft² is about 52% above the group average of 1.9 kgCO₂e/ft².
At 126,000 sq ft, it is about 34% below the average floor area of 191,699 sq ft for those buildings. It was built in 2020, 34 years later than the group's average year built (1986). Across all 24 jurisdictions BuildingCensus covers, the 238 multifamily buildings average an ENERGY STAR score of 86 and a site EUI of 34.8 kBtu/ft².
How has 1601 MARIPOSA ST's energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for 1601 MARIPOSA ST, covering report years 2018–2025. Its ENERGY STAR score went from 75 in 2022 to 78 in 2025 (+3 points); its best year on file was 2024, at 79. Site EUI moved from 49.2 kBtu/ft² (2021) to 52.2 kBtu/ft² (2025), an 6% increase. Reported emissions went from 375 tCO₂e to 364 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 78 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 78 means the building performs better than about 78% of its national peers. BuildingCensus bands the score into report-card grades; 78 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 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. 1601 MARIPOSA ST's 52.2 kBtu/ft² across 126,000 sq ft works out to about 6.6 billion Btu (1,928 MWh-equivalent) in 2025. Its source EUI of 106.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,100,523 kWh of electricity and 28,194 therms of natural gas for the year.
Which law requires 1601 MARIPOSA ST to report its energy use?
1601 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:4005A/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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Frequently asked questions
What is 1601 MARIPOSA ST's energy grade?
1601 MARIPOSA ST scores 78 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1601 MARIPOSA ST use?
Its 2025 site energy-use intensity was 52.2 kBtu/ft² (106.9 kBtu/ft² source) across 126,000 sq ft, including 1,100,523 kWh of electricity and 28,194 therms of natural gas.
What are 1601 MARIPOSA ST's carbon emissions?
1601 MARIPOSA ST reported 364 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2025.
Where is 1601 MARIPOSA ST?
1601 MARIPOSA ST is in San Francisco, California 94107. Its coordinates are 37.76301, -122.39949 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 1601 MARIPOSA ST and when was it built?
1601 MARIPOSA ST has 126,000 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2020 as its year built. It is classed as multifamily.
Is 1601 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, “1601 MARIPOSA ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/1601-mariposa-st-42c21daa (data as of October 2, 2026).