SOMA Family Apartments
Mixed Residential in San Francisco, CA · 1180 HOWARD ST · 94103
At a glance
SOMA Family Apartments is a 176,874-square-foot mixed residential building at 1180 HOWARD ST in San Francisco, California, built in 2003. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 41.2 kBtu/ft² and 401 tCO₂e of greenhouse-gas emissions. That score is higher than 32% 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 | 87 (band A) |
| Site EUI | 41.2 kBtu/ft² |
| Source EUI | 78.4 kBtu/ft² |
| GHG emissions | 401 tCO₂e |
| GHG intensity | 2.3 kgCO₂e/ft² |
| Electricity | 1,043,182 kWh |
| Natural gas | 37,228 therms |
| Gross floor area | 176,874 sq ft |
| Source record | sf:3727/202:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 87 | ±0 | 41.2 kBtu/ft² | 401 tCO₂e |
| 2024 | 87 | +5 | 40.6 kBtu/ft² | 429 tCO₂e |
| 2023 | 82 | -17 | 41.2 kBtu/ft² | 455 tCO₂e |
| 2022 | 99 | +2 | 34.9 kBtu/ft² | 363 tCO₂e |
| 2021 | 97 | 35.8 kBtu/ft² | 354 tCO₂e | |
| 2020 | — | 37.3 kBtu/ft² | 385 tCO₂e | |
| 2019 | 92 | +9 | 44.0 kBtu/ft² | 458 tCO₂e |
| 2018 | 83 | 48.2 kBtu/ft² | 505 tCO₂e |
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
- 1180 HOWARD ST
- City
- San Francisco
- State
- California
- ZIP
- 94103
- Coordinates
- 37.77681, -122.41147
Within ~1 km
Nearby benchmarked buildings
- 1455 Market Streetscore —
Commercial · 1,339,547 sq ft
- 1455 Market Streetscore 92
Office · 1,189,547 sq ft
Office · 1,055,601 sq ft
- NEMA SFscore 100
Multifamily · 1,044,955 sq ft
- 650 Townsend - Zyngascore 94
Commercial · 1,029,659 sq ft
- Fifth & Mission Garagescore —
Other · 992,600 sq ft
See also: most efficient in San Francisco · biggest emitters
How does SOMA Family Apartments 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. SOMA Family Apartments's ENERGY STAR score of 87 compares with an average of 85 across the 340 that report a score; it scores higher than 32% of them and lower than 67%. Its site EUI of 41.2 kBtu/ft² is about 14% above the average of 36.0 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.3 kgCO₂e/ft² is about 14% above the group average of 2.0 kgCO₂e/ft².
At 176,874 sq ft, it is roughly in line with the average floor area of 165,572 sq ft for those buildings. It was built in 2003, 37 years later than the group's average year built (1967).
How has SOMA Family Apartments's energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for SOMA Family Apartments, covering report years 2018–2025. Its ENERGY STAR score went from 83 in 2018 to 87 in 2025 (+4 points); its best year on file was 2022, at 99. Site EUI moved from 48.2 kBtu/ft² (2018) to 41.2 kBtu/ft² (2025), a 15% decrease. Reported emissions went from 505 tCO₂e to 401 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. SOMA Family Apartments's 41.2 kBtu/ft² across 176,874 sq ft works out to about 7.3 billion Btu (2,136 MWh-equivalent) in 2025. Its source EUI of 78.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,043,182 kWh of electricity and 37,228 therms of natural gas for the year.
Which law requires SOMA Family Apartments to report its energy use?
SOMA Family 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:3727/202:2025). 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
- Clementina Towers· 175,046 sq ft · score 32 (D)
- 420 MAIN ST· 172,376 sq ft · score 91 (A)
- 1502 FILLMORE ST· 170,008 sq ft · score 100 (A)
- 351 BUENA VISTA AVE· 168,125 sq ft · score 100 (A)
- 38 BRYANT ST· 167,778 sq ft · score 100 (A)
- 2050-2070 FOLSOM ST· 167,500 sq ft · score 100 (A)
- 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 SOMA Family Apartments's energy grade?
SOMA Family Apartments scores 87 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 SOMA Family Apartments use?
Its 2025 site energy-use intensity was 41.2 kBtu/ft² (78.4 kBtu/ft² source) across 176,874 sq ft, including 1,043,182 kWh of electricity and 37,228 therms of natural gas.
What are SOMA Family Apartments's carbon emissions?
SOMA Family Apartments reported 401 tCO₂e of greenhouse-gas emissions (2.3 kgCO₂e/ft²) for 2025.
Where is SOMA Family Apartments?
SOMA Family Apartments is at 1180 HOWARD ST, in San Francisco, California 94103. Its coordinates are 37.77681, -122.41147 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is SOMA Family Apartments and when was it built?
SOMA Family Apartments has 176,874 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2003 as its year built. It is classed as mixed residential.
Is SOMA Family 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, “SOMA Family Apartments, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/soma-family-apartments-3eb44bc3 (data as of October 2, 2026).