1550 BAY ST
Mixed Residential in San Francisco, CA · 94123
At a glance
1550 BAY ST is a 248,960-square-foot mixed residential building in San Francisco, California, built in 1969. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 34.5 kBtu/ft² and 299 tCO₂e of greenhouse-gas emissions. That score is higher than 69% of the 340 scored mixed residential buildings in San Francisco.
SF Environment Code Chapter 20 · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 34.5 kBtu/ft² |
| Source EUI | 59.7 kBtu/ft² |
| GHG emissions | 299 tCO₂e |
| GHG intensity | 1.9 kgCO₂e/ft² |
| Electricity | 623,217 kWh |
| Natural gas | 33,407 therms |
| Gross floor area | 248,960 sq ft |
| Source record | sf:0459/005:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 34.5 kBtu/ft² | 299 tCO₂e |
| 2024 | 100 | ±0 | 34.6 kBtu/ft² | 323 tCO₂e |
| 2023 | 100 | ±0 | 29.1 kBtu/ft² | 268 tCO₂e |
| 2022 | 100 | 28.0 kBtu/ft² | 254 tCO₂e | |
| 2021 | — | 29.1 kBtu/ft² | 254 tCO₂e | |
| 2020 | — | 26.3 kBtu/ft² | 236 tCO₂e | |
| 2019 | 100 | 29.1 kBtu/ft² | 261 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1550 BAY ST
- City
- San Francisco
- State
- California
- ZIP
- 94123
- Coordinates
- 37.80373, -122.43238
Within ~1 km
Nearby benchmarked buildings
- The Fontana West Apartment Complexscore 100
Multifamily Housing · 288,168 sq ft
- 1050 NORTH POINT STscore 100
Mixed Residential · 288,168 sq ft
- Marina Covescore 100
Multifamily Housing · 158,482 sq ft
Office · 158,360 sq ft
- Williams Sonoma - 3250 Van Nessscore 77
Commercial · 158,360 sq ft
- Costco #00475 El Caminoscore 79
Supermarket/Grocery Store · 153,054 sq ft
See also: most efficient in San Francisco · biggest emitters
How does 1550 BAY ST compare with other mixed residential buildings in San Francisco?
The latest disclosures cover 610 mixed residential buildings in San Francisco, out of 2,509 buildings citywide. 1550 BAY ST's ENERGY STAR score of 100 compares with an average of 85 across the 340 that report a score; it scores higher than 69% of them. Its site EUI of 34.5 kBtu/ft² is roughly in line with the average of 36.0 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 2.0 kgCO₂e/ft².
At 248,960 sq ft, it is about 50% above the average floor area of 165,572 sq ft for those buildings. Its 1969 construction date is close to the group's average year built (1967).
How has 1550 BAY ST's energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for 1550 BAY ST, covering report years 2018–2025. Its ENERGY STAR score was 100 in both 2019 and 2025. Site EUI moved from 29.1 kBtu/ft² (2019) to 34.5 kBtu/ft² (2025), an 19% increase. Reported emissions went from 261 tCO₂e to 299 tCO₂e over the same span (up 15%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 1550 BAY ST's 34.5 kBtu/ft² across 248,960 sq ft works out to about 8.6 billion Btu (2,517 MWh-equivalent) in 2025. Its source EUI of 59.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 623,217 kWh of electricity and 33,407 therms of natural gas for the year.
Which law requires 1550 BAY ST to report its energy use?
1550 BAY 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:0459/005:2025). 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 mixed residential buildings in San Francisco
- Mosaica Family Apartments· 248,893 sq ft · score 93 (A)
- 2000 POST ST· 248,719 sq ft · score 73 (B)
- Crescent Cove· 246,885 sq ft · score 91 (A)
- 3911 ALEMANY BLVD· 246,406 sq ft
- 1200 GOUGH ST· 245,775 sq ft · score 79 (B)
- 135 VALENCIA ST· 245,104 sq ft
- Mixed Residential buildings in San Francisco· 610 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is 1550 BAY ST's energy grade?
1550 BAY ST scores 100 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 1550 BAY ST use?
Its 2025 site energy-use intensity was 34.5 kBtu/ft² (59.7 kBtu/ft² source) across 248,960 sq ft, including 623,217 kWh of electricity and 33,407 therms of natural gas.
What are 1550 BAY ST's carbon emissions?
1550 BAY ST reported 299 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 2025.
Where is 1550 BAY ST?
1550 BAY ST is in San Francisco, California 94123. Its coordinates are 37.80373, -122.43238 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 1550 BAY ST and when was it built?
1550 BAY ST has 248,960 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1969 as its year built. It is classed as mixed residential.
Is 1550 BAY 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, “1550 BAY ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/1550-bay-st-4170ffc3 (data as of October 2, 2026).