Buchanan Park Apartments
Multifamily in San Francisco, CA · 1150 BUCHANAN ST · 94115
At a glance
Buchanan Park Apartments is a 64,364-square-foot multifamily building at 1150 BUCHANAN ST in San Francisco, California, built in 1977. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 93 out of 100 (grade A), a site energy-use intensity of 34.8 kBtu/ft² and 123 tCO₂e of greenhouse-gas emissions. That score is higher than 46% of the 129 scored multifamily buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 93 (band A) |
| Site EUI | 34.8 kBtu/ft² |
| Source EUI | 60.4 kBtu/ft² |
| GHG emissions | 123 tCO₂e |
| GHG intensity | 1.9 kgCO₂e/ft² |
| Electricity | 256,734 kWh |
| Natural gas | 13,671 therms |
| Gross floor area | 64,364 sq ft |
| Source record | sf:0748/032:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 93 | +1 | 34.8 kBtu/ft² | 123 tCO₂e |
| 2024 | 92 | 35.7 kBtu/ft² | 126 tCO₂e | |
| 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
- 1150 BUCHANAN ST
- City
- San Francisco
- State
- California
- ZIP
- 94115
- Coordinates
- 37.78126, -122.42970
Within ~1 km
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See also: most efficient in San Francisco · biggest emitters
How does Buchanan Park Apartments compare with other multifamily buildings in San Francisco?
The latest disclosures cover 192 multifamily buildings in San Francisco, out of 2,509 buildings citywide. Buchanan Park Apartments's ENERGY STAR score of 93 compares with an average of 86 across the 129 that report a score; it scores higher than 46% of them and lower than 52%. Its site EUI of 34.8 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.9 kgCO₂e/ft² is roughly in line with the group average of 1.9 kgCO₂e/ft².
At 64,364 sq ft, it is about 66% below the average floor area of 191,699 sq ft for those buildings. It was built in 1977, 9 years earlier 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 Buchanan Park Apartments's energy performance changed over time?
BuildingCensus holds 3 San Francisco disclosures for Buchanan Park Apartments, covering report years 2018, 2024, 2025. Its ENERGY STAR score went from 92 in 2024 to 93 in 2025 (+1 points). Site EUI moved from 35.7 kBtu/ft² (2024) to 34.8 kBtu/ft² (2025), a 3% decrease. Reported emissions went from 126 tCO₂e to 123 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 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. Buchanan Park Apartments's 34.8 kBtu/ft² across 64,364 sq ft works out to about 2.2 billion Btu (656 MWh-equivalent) in 2025. Its source EUI of 60.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 256,734 kWh of electricity and 13,671 therms of natural gas for the year.
Which law requires Buchanan Park Apartments to report its energy use?
Buchanan Park Apartments 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:0748/032:2025). 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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- Multifamily buildings in San Francisco· 192 benchmarked
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- Most efficient large buildings in San Francisco
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Frequently asked questions
What is Buchanan Park Apartments's energy grade?
Buchanan Park Apartments scores 93 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 Buchanan Park Apartments use?
Its 2025 site energy-use intensity was 34.8 kBtu/ft² (60.4 kBtu/ft² source) across 64,364 sq ft, including 256,734 kWh of electricity and 13,671 therms of natural gas.
What are Buchanan Park Apartments's carbon emissions?
Buchanan Park Apartments reported 123 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 2025.
Where is Buchanan Park Apartments?
Buchanan Park Apartments is at 1150 BUCHANAN ST, in San Francisco, California 94115. Its coordinates are 37.78126, -122.42970 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is Buchanan Park Apartments and when was it built?
Buchanan Park Apartments has 64,364 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1977 as its year built. It is classed as multifamily.
Is Buchanan Park Apartments 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, “Buchanan Park Apartments, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/buchanan-park-apartments-bb4ac1ce (data as of October 2, 2026).