Coresite Sv1
Office in California, CA · 55 South Market Street, San Jose · 95113
At a glance
Coresite Sv1 is a 329,742-square-foot office building at 55 South Market Street, San Jose in San Jose, California, built in 1984. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 66 out of 100 (grade C), a site energy-use intensity of 168.6 kBtu/ft² and 3,662 tCO₂e of greenhouse-gas emissions. That score is higher than 26% 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 | 66 (band C) |
| Site EUI | 168.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 3,662 tCO₂e |
| GHG intensity | 11.1 kgCO₂e/ft² |
| Electricity | 15,929,544 kWh |
| Natural gas | 10,375 therms |
| Gross floor area | 329,742 sq ft |
| Source record | california:3423160:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 66 | -34 | 168.6 kBtu/ft² | 3,662 tCO₂e |
| 2023 | 100 | ±0 | 184.9 kBtu/ft² | 4,314 tCO₂e |
| 2022 | 100 | +96 | 181.0 kBtu/ft² | 4,066 tCO₂e |
| 2021 | 4 | -24 | 182.6 kBtu/ft² | 3,643 tCO₂e |
| 2020 | 28 | 219.4 kBtu/ft² | 4,790 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.
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Location
- Address
- 55 South Market Street, San Jose
- City
- California
- State
- California
- ZIP
- 95113
- Coordinates
- 37.33417, -121.89170
Within ~1 km
Nearby benchmarked buildings
- Adobe San Jose - Founders Towerscore 82
Office · 705,470 sq ft
- Centerra (Nc76 & Cn172)score 84
Multifamily Housing · 571,220 sq ft
Parking · 565,527 sq ft
- San Jose Convention Centerscore —
Convention Center · 550,000 sq ft
Office · 506,171 sq ft
- The Grad (Gr299)score 94
Multifamily Housing · 490,046 sq ft
See also: most efficient in California · biggest emitters
How does Coresite Sv1 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Coresite Sv1's ENERGY STAR score of 66 compares with an average of 75 across the 4,912 that report a score; it scores higher than 26% of them and lower than 73%. Its site EUI of 168.6 kBtu/ft² is about 199% above the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 11.1 kgCO₂e/ft² is about 209% above the group average of 3.6 kgCO₂e/ft².
At 329,742 sq ft, it is about twice 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 Coresite Sv1's energy performance changed over time?
BuildingCensus holds 5 California disclosures for Coresite Sv1, covering report years 2020–2024. Its ENERGY STAR score went from 28 in 2020 to 66 in 2024 (+38 points); its best year on file was 2022, at 100. Site EUI moved from 219.4 kBtu/ft² (2020) to 168.6 kBtu/ft² (2024), a 23% decrease. Reported emissions went from 4,790 tCO₂e to 3,662 tCO₂e over the same span (down 24%).
What does an ENERGY STAR score of 66 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 66 means the building performs better than about 66% of its national peers. BuildingCensus bands the score into report-card grades; 66 falls in band C — below median (55–69). It sits 9 points below 75, the threshold for ENERGY STAR certification. 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. Coresite Sv1's 168.6 kBtu/ft² across 329,742 sq ft works out to about 55.6 billion Btu (16,293 MWh-equivalent) in 2024. The disclosure also reports 15,929,544 kWh of electricity and 10,375 therms of natural gas for the year.
Which law requires Coresite Sv1 to report its energy use?
Coresite Sv1 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:3423160:2024). 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
- Ten Almaden· 329,732 sq ft · score 82 (B)
- Bayview· 329,432 sq ft · score 84 (B)
- 300 Spectrum Center· 329,332 sq ft · score 81 (B)
- 17911 Von Karman Ave· 329,288 sq ft · EUI 15.7 kBtu/ft²
- 5000 Birch Street· 329,168 sq ft · EUI 23.3 kBtu/ft²
- 1851 E. First Street· 329,082 sq ft · score 93 (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 Coresite Sv1's energy grade?
Coresite Sv1 scores 66 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Coresite Sv1 use?
Its 2024 site energy-use intensity was 168.6 kBtu/ft² across 329,742 sq ft, including 15,929,544 kWh of electricity and 10,375 therms of natural gas.
What are Coresite Sv1's carbon emissions?
Coresite Sv1 reported 3,662 tCO₂e of greenhouse-gas emissions (11.1 kgCO₂e/ft²) for 2024.
Where is Coresite Sv1?
Coresite Sv1 is at 55 South Market Street, San Jose, in San Jose, California 95113. Its coordinates are 37.33417, -121.89170 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Coresite Sv1 and when was it built?
Coresite Sv1 has 329,742 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 Coresite Sv1 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, “Coresite Sv1, San Jose, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/coresite-sv1-50630391 (data as of July 9, 2026).