Soc | 100 Shoreline Hwy, Bldg. B
Office in California, CA · 100 Shoreline Highway, Mill Valley · 94965
At a glance
Soc | 100 Shoreline Hwy, Bldg. B is a 62,925-square-foot office building at 100 Shoreline Highway, Mill Valley in Mill Valley, California, built in 1984. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 78 out of 100 (grade B), a site energy-use intensity of 58.3 kBtu/ft² and 184 tCO₂e of greenhouse-gas emissions. That score is higher than 39% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 78 (band B) |
| Site EUI | 58.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 184 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 440,731 kWh |
| Natural gas | 15,941 therms |
| Gross floor area | 62,925 sq ft |
| Source record | california:1480677:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 78 | ±0 | 58.3 kBtu/ft² | 184 tCO₂e |
| 2023 | 78 | +8 | 53.4 kBtu/ft² | 203 tCO₂e |
| 2022 | 70 | +2 | 50.0 kBtu/ft² | 192 tCO₂e |
| 2021 | 68 | -9 | 49.5 kBtu/ft² | 173 tCO₂e |
| 2020 | 77 | 51.6 kBtu/ft² | 183 tCO₂e |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 100 Shoreline Highway, Mill Valley
- City
- California
- State
- California
- ZIP
- 94965
- Coordinates
- 37.88014, -122.51452
Within ~1 km
Nearby benchmarked buildings
- Summit At Sausalito - 29862score 93
Multifamily Housing · 207,313 sq ft
- Summit At Sausalito (Rc28)score 97
Multifamily Housing · 148,509 sq ft
- Ponderosa Estatesscore 94
Multifamily Housing · 74,584 sq ft
See also: most efficient in California · biggest emitters
How does Soc | 100 Shoreline Hwy, Bldg. B compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Soc | 100 Shoreline Hwy, Bldg. B's ENERGY STAR score of 78 compares with an average of 75 across the 4,912 that report a score; it scores higher than 39% of them and lower than 59%. Its site EUI of 58.3 kBtu/ft² is roughly in line with the average of 56.4 kBtu/ft². Its emissions intensity of 2.9 kgCO₂e/ft² is about 19% below the group average of 3.6 kgCO₂e/ft².
At 62,925 sq ft, it is about 59% below the average floor area of 151,937 sq ft for those buildings. Its 1984 construction date is close to 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.
How has Soc | 100 Shoreline Hwy, Bldg. B's energy performance changed over time?
BuildingCensus holds 5 California disclosures for Soc | 100 Shoreline Hwy, Bldg. B, covering report years 2020–2024. Its ENERGY STAR score went from 77 in 2020 to 78 in 2024 (+1 points); its best year on file was 2023, at 78. Site EUI moved from 51.6 kBtu/ft² (2020) to 58.3 kBtu/ft² (2024), an 13% increase. Reported emissions went from 183 tCO₂e to 184 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 78 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 78 means the building performs better than about 78% of its national peers. BuildingCensus bands the score into report-card grades; 78 falls in band B — above median (70–84). 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. Soc | 100 Shoreline Hwy, Bldg. B's 58.3 kBtu/ft² across 62,925 sq ft works out to about 3.7 billion Btu (1,075 MWh-equivalent) in 2024. The disclosure also reports 440,731 kWh of electricity and 15,941 therms of natural gas for the year.
Which law requires Soc | 100 Shoreline Hwy, Bldg. B to report its energy use?
Soc | 100 Shoreline Hwy, Bldg. B 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 2024 disclosure (source record california:1480677:2024). 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
- Bernardo Heights Corporate Center· 62,898 sq ft · EUI 70.6 kBtu/ft²
- 640 North Mccarthy· 62,874 sq ft · score 93 (A)
- 680 North Mccarthy· 62,874 sq ft · score 74 (B)
- 840 North Mccarthy· 62,874 sq ft
- 880 North Mccarthy· 62,874 sq ft · EUI 78.0 kBtu/ft²
- Corporate Office· 62,866 sq ft · score 98 (A)
- 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 Soc | 100 Shoreline Hwy, Bldg. B's energy grade?
Soc | 100 Shoreline Hwy, Bldg. B scores 78 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Soc | 100 Shoreline Hwy, Bldg. B use?
Its 2024 site energy-use intensity was 58.3 kBtu/ft² across 62,925 sq ft, including 440,731 kWh of electricity and 15,941 therms of natural gas.
What are Soc | 100 Shoreline Hwy, Bldg. B's carbon emissions?
Soc | 100 Shoreline Hwy, Bldg. B reported 184 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2024.
Where is Soc | 100 Shoreline Hwy, Bldg. B?
Soc | 100 Shoreline Hwy, Bldg. B is at 100 Shoreline Highway, Mill Valley, in Mill Valley, California 94965. Its coordinates are 37.88014, -122.51452 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Soc | 100 Shoreline Hwy, Bldg. B and when was it built?
Soc | 100 Shoreline Hwy, Bldg. B has 62,925 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1984 as its year built. It is classed as office.
Is Soc | 100 Shoreline Hwy, Bldg. B covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 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, “Soc | 100 Shoreline Hwy, Bldg. B, Mill Valley, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/soc-100-shoreline-hwy-bldg-b-a79ea7ad (data as of July 9, 2026).