3400 LAGUNA ST
Mixed Residential in San Francisco, CA · 94123
At a glance
3400 LAGUNA ST is a 83,680-square-foot mixed residential building in San Francisco, California, built in 1924. In its 2025 San Francisco benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 88.2 kBtu/ft² and 399 tCO₂e of greenhouse-gas emissions. That score is higher than 41% 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 | 92 (band A) |
| Site EUI | 88.2 kBtu/ft² |
| Source EUI | 130.0 kBtu/ft² |
| GHG emissions | 399 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 523,332 kWh |
| Natural gas | 55,978 therms |
| Gross floor area | 83,680 sq ft |
| Source record | sf:0471/003:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 92 | 88.2 kBtu/ft² | 399 tCO₂e | |
| 2024 | — | 96.0 kBtu/ft² | 450 tCO₂e | |
| 2023 | 85 | +4 | 103.9 kBtu/ft² | 492 tCO₂e |
| 2022 | 81 | 106.5 kBtu/ft² | 501 tCO₂e | |
| 2021 | — | 107.1 kBtu/ft² | 489 tCO₂e | |
| 2020 | — | 98.5 kBtu/ft² | 465 tCO₂e | |
| 2019 | 72 | 107.2 kBtu/ft² | 509 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
- 3400 LAGUNA ST
- City
- San Francisco
- State
- California
- ZIP
- 94123
- Coordinates
- 37.80290, -122.43102
Within ~1 km
Nearby benchmarked buildings
- 2000 BROADWAYscore 98
Mixed Residential · 326,285 sq ft
- The Fontana West Apartment Complexscore 100
Multifamily Housing · 288,168 sq ft
- 1050 NORTH POINT STscore 100
Mixed Residential · 288,168 sq ft
- 1550 BAY STscore 100
Mixed Residential · 248,960 sq ft
- Galileo Highscore 87
K-12 School · 242,400 sq ft
- 1000 NORTH POINT STscore —
Multifamily · 238,800 sq ft
See also: most efficient in San Francisco · biggest emitters
How does 3400 LAGUNA 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. 3400 LAGUNA ST's ENERGY STAR score of 92 compares with an average of 85 across the 340 that report a score; it scores higher than 41% of them and lower than 58%. Its site EUI of 88.2 kBtu/ft² is about 145% 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 4.8 kgCO₂e/ft² is about 138% above the group average of 2.0 kgCO₂e/ft².
At 83,680 sq ft, it is about half of the average floor area of 165,572 sq ft for those buildings. It was built in 1924, 42 years earlier than the group's average year built (1967).
How has 3400 LAGUNA ST's energy performance changed over time?
BuildingCensus holds 8 San Francisco disclosures for 3400 LAGUNA ST, covering report years 2018–2025. Its ENERGY STAR score went from 72 in 2019 to 92 in 2025 (+20 points). Site EUI moved from 107.2 kBtu/ft² (2019) to 88.2 kBtu/ft² (2025), a 18% decrease. Reported emissions went from 509 tCO₂e to 399 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 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. 3400 LAGUNA ST's 88.2 kBtu/ft² across 83,680 sq ft works out to about 7.4 billion Btu (2,163 MWh-equivalent) in 2025. Its source EUI of 130.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 523,332 kWh of electricity and 55,978 therms of natural gas for the year.
Which law requires 3400 LAGUNA ST to report its energy use?
3400 LAGUNA 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:0471/003:2025). 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
- 1896 PACIFIC AVE· 83,475 sq ft · EUI 33.1 kBtu/ft²
- 410 JESSIE ST· 83,259 sq ft
- Folsom + Dore Apartments· 82,173 sq ft · score 33 (D)
- 666 POST ST· 81,426 sq ft · score 75 (B)
- Alexander Residence· 81,380 sq ft · score 76 (B)
- 2130 HARRISON ST· 81,355 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 3400 LAGUNA ST's energy grade?
3400 LAGUNA ST scores 92 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 3400 LAGUNA ST use?
Its 2025 site energy-use intensity was 88.2 kBtu/ft² (130.0 kBtu/ft² source) across 83,680 sq ft, including 523,332 kWh of electricity and 55,978 therms of natural gas.
What are 3400 LAGUNA ST's carbon emissions?
3400 LAGUNA ST reported 399 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2025.
Where is 3400 LAGUNA ST?
3400 LAGUNA ST is in San Francisco, California 94123. Its coordinates are 37.80290, -122.43102 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
How big is 3400 LAGUNA ST and when was it built?
3400 LAGUNA ST has 83,680 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1924 as its year built. It is classed as mixed residential.
Is 3400 LAGUNA 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, “3400 LAGUNA ST, San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/3400-laguna-st-8c32d0f4 (data as of October 2, 2026).