400 Howard St
Office in California, CA · 400 Howard St, San Francisco · 94105
At a glance
400 Howard St is a 339,899-square-foot office building at 400 Howard St, San Francisco in San Francisco, California, built in 2007. In its 2018 California benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 61.6 kBtu/ft² and 1,476 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2018
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 61.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,476 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 6,139,683 kWh |
| Gross floor area | 339,899 sq ft |
| Source record | california:1800298:2018 |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 400 Howard St, San Francisco
- City
- California
- State
- California
- ZIP
- 94105
- Coordinates
- 37.78918, -122.39523
Within ~1 km
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See also: most efficient in California · biggest emitters
How does 400 Howard St compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 400 Howard St's ENERGY STAR score of 87 compares with an average of 75 across the 4,912 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 61.6 kBtu/ft² is roughly in line with the average of 56.4 kBtu/ft². Its emissions intensity of 4.3 kgCO₂e/ft² is about 21% above the group average of 3.6 kgCO₂e/ft².
At 339,899 sq ft, it is about 124% above the average floor area of 151,937 sq ft for those buildings. It was built in 2007, 22 years later than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
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 California, 65% 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. 400 Howard St's 61.6 kBtu/ft² across 339,899 sq ft works out to about 20.9 billion Btu (6,136 MWh-equivalent) in 2018. The disclosure also reports 6,139,683 kWh of electricity for the year.
Which law requires 400 Howard St to report its energy use?
400 Howard St reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2018 disclosure (source record california:1800298:2018). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More office buildings in California
- 101 Continental· 339,581 sq ft · score 87 (A)
- 330 North Brand· 339,288 sq ft · score 94 (A)
- 100 Bayview· 339,157 sq ft · score 91 (A)
- Cypress Distribution Center - 6550 Katella· 339,117 sq ft
- 1Tenth· 338,280 sq ft · EUI 13.3 kBtu/ft²
- Pacifica Tower· 338,226 sq ft · score 80 (B)
- Office buildings in California· 6,214 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is 400 Howard St's energy grade?
400 Howard St scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2018 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 400 Howard St use?
Its 2018 site energy-use intensity was 61.6 kBtu/ft² across 339,899 sq ft, including 6,139,683 kWh of electricity.
What are 400 Howard St's carbon emissions?
400 Howard St reported 1,476 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2018.
Where is 400 Howard St?
400 Howard St is at 400 Howard St, San Francisco, in San Francisco, California 94105. Its coordinates are 37.78918, -122.39523 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 400 Howard St and when was it built?
400 Howard St has 339,899 sq ft of gross floor area, as reported in its 2018 disclosure. The disclosure lists 2007 as its year built. It is classed as office.
Is 400 Howard St covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2018 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
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About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “400 Howard St, San Francisco, California — 2018 benchmarking disclosure”, https://buildingcensus.com/buildings/california/400-howard-st-b53e9b75 (data as of July 9, 2026).