BuildingCensus
D

354 Oyster Point - Kilroy Oyster Point Phase 1

Office in California, CA · 354 Oyster Point Boulevard, South San Francisco · 94080

At a glance

354 Oyster Point - Kilroy Oyster Point Phase 1 is a 193,472-square-foot office building at 354 Oyster Point Boulevard, South San Francisco in South San Francisco, California, built in 2021. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 45 out of 100 (grade D), a site energy-use intensity of 78.9 kBtu/ft² and 964 tCO₂e of greenhouse-gas emissions. That score is higher than 14% of the 4,912 scored office buildings in California.

ENERGY STAR score
45
band D · 2024
Site EUI
78.9
kBtu/ft²
GHG emissions
964
tCO₂e
GHG intensity
5.0
kgCO₂e/ft²
Floor area
193,472
sq ft
Year built
2021
vintage
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85–10070–8455–691–54
This entry + 6 nearby

AB 802 (Public Resources Code §25402.10) · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score45 (band D)
Site EUI78.9 kBtu/ft²
Source EUI—
GHG emissions964 tCO₂e
GHG intensity5.0 kgCO₂e/ft²
Electricity3,790,340 kWh
Natural gas19,990 therms
Gross floor area193,472 sq ft
Source recordcalifornia:19902430:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest4578.9 kBtu/ft²964 tCO₂e
2022——1,031 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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
354 Oyster Point Boulevard, South San Francisco
State
California
ZIP
94080
Coordinates
37.66229, -122.38359

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in California · biggest emitters

How does 354 Oyster Point - Kilroy Oyster Point Phase 1 compare with other office buildings in California?

The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 354 Oyster Point - Kilroy Oyster Point Phase 1's ENERGY STAR score of 45 compares with an average of 75 across the 4,912 that report a score; it scores higher than 14% of them and lower than 86%. Its site EUI of 78.9 kBtu/ft² is about 40% 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 5.0 kgCO₂e/ft² is about 38% above the group average of 3.6 kgCO₂e/ft².

At 193,472 sq ft, it is about 27% above the average floor area of 151,937 sq ft for those buildings. It was built in 2021, 36 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.

How has 354 Oyster Point - Kilroy Oyster Point Phase 1's energy performance changed over time?

BuildingCensus holds 2 California disclosures for 354 Oyster Point - Kilroy Oyster Point Phase 1, covering report years 2022, 2024. Reported emissions went from 1,031 tCO₂e to 964 tCO₂e over the same span (down 6%). Only one of those years carries energy figures.

What does an ENERGY STAR score of 45 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 45 means the building performs better than about 45% of its national peers. BuildingCensus bands the score into report-card grades; 45 falls in band D — lowest band (1–54). It sits 30 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. 354 Oyster Point - Kilroy Oyster Point Phase 1's 78.9 kBtu/ft² across 193,472 sq ft works out to about 15.3 billion Btu (4,474 MWh-equivalent) in 2024. The disclosure also reports 3,790,340 kWh of electricity and 19,990 therms of natural gas for the year.

Which law requires 354 Oyster Point - Kilroy Oyster Point Phase 1 to report its energy use?

354 Oyster Point - Kilroy Oyster Point Phase 1 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:19902430:2024). 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

Frequently asked questions

What is 354 Oyster Point - Kilroy Oyster Point Phase 1's energy grade?

354 Oyster Point - Kilroy Oyster Point Phase 1 scores 45 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 354 Oyster Point - Kilroy Oyster Point Phase 1 use?

Its 2024 site energy-use intensity was 78.9 kBtu/ft² across 193,472 sq ft, including 3,790,340 kWh of electricity and 19,990 therms of natural gas.

What are 354 Oyster Point - Kilroy Oyster Point Phase 1's carbon emissions?

354 Oyster Point - Kilroy Oyster Point Phase 1 reported 964 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2024.

Where is 354 Oyster Point - Kilroy Oyster Point Phase 1?

354 Oyster Point - Kilroy Oyster Point Phase 1 is at 354 Oyster Point Boulevard, South San Francisco, in South San Francisco, California 94080. Its coordinates are 37.66229, -122.38359 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.

How big is 354 Oyster Point - Kilroy Oyster Point Phase 1 and when was it built?

354 Oyster Point - Kilroy Oyster Point Phase 1 has 193,472 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2021 as its year built. It is classed as office.

Is 354 Oyster Point - Kilroy Oyster Point Phase 1 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, “354 Oyster Point - Kilroy Oyster Point Phase 1, South San Francisco, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/354-oyster-point-kilroy-oyster-point-phase-1-d5ad76be (data as of July 9, 2026).