Us-Rwc-Sea6
Office in California, CA · 1600 Seaport Boulevard, Redwood City · 94063
At a glance
Us-Rwc-Sea6 is a 257,408-square-foot office building at 1600 Seaport Boulevard, Redwood City in Redwood City, California, built in 1999. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 78 out of 100 (grade B), a site energy-use intensity of 51.1 kBtu/ft² and 871 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 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 78 (band B) |
| Site EUI | 51.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 871 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 2,436,260 kWh |
| Natural gas | 52,994 therms |
| Gross floor area | 257,408 sq ft |
| Source record | california:15513261:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 78 | +6 | 51.1 kBtu/ft² | 871 tCO₂e |
| 2022 | 72 | -10 | 68.6 kBtu/ft² | 1,098 tCO₂e |
| 2021 | 82 | 52.4 kBtu/ft² | 781 tCO₂e | |
| 2020 | — | — | — |
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
- 1600 Seaport Boulevard, Redwood City
- City
- California
- State
- California
- ZIP
- 94063
- Coordinates
- 37.51218, -122.20143
Within ~1 km
Nearby benchmarked buildings
- 1400A Seaportscore 47
Office · 193,001 sq ft
- Informatica - 2100score 84
Office · 149,125 sq ft
- Us-Rwc-Sea9score 72
Office · 141,877 sq ft
- Informatica - 2000score 83
Office · 141,180 sq ft
See also: most efficient in California · biggest emitters
How does Us-Rwc-Sea6 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Us-Rwc-Sea6'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 51.1 kBtu/ft² is roughly in line with the average of 56.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.4 kgCO₂e/ft² is roughly in line with the group average of 3.6 kgCO₂e/ft².
At 257,408 sq ft, it is about 69% above the average floor area of 151,937 sq ft for those buildings. It was built in 1999, 14 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 Us-Rwc-Sea6's energy performance changed over time?
BuildingCensus holds 4 California disclosures for Us-Rwc-Sea6, covering report years 2020–2023. Its ENERGY STAR score went from 82 in 2021 to 78 in 2023 (-4 points); its best year on file was 2021, at 82. Site EUI moved from 52.4 kBtu/ft² (2021) to 51.1 kBtu/ft² (2023), a 2% decrease. Reported emissions went from 781 tCO₂e to 871 tCO₂e over the same span (up 12%).
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. Us-Rwc-Sea6's 51.1 kBtu/ft² across 257,408 sq ft works out to about 13.2 billion Btu (3,855 MWh-equivalent) in 2023. The disclosure also reports 2,436,260 kWh of electricity and 52,994 therms of natural gas for the year.
Which law requires Us-Rwc-Sea6 to report its energy use?
Us-Rwc-Sea6 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 2023 disclosure (source record california:15513261:2023). 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
- Lnr Warner Center, Iv Building E· 257,141 sq ft · score 90 (A)
- Ford Factory Building· 257,028 sq ft · score 91 (A)
- Lnr Warner Center, Iv· 256,627 sq ft · score 62 (C)
- First Federal Square· 256,268 sq ft · score 91 (A)
- 5325 Hellyer Ave- 875 Embedded Way· 256,250 sq ft · score 11 (D)
- Emery Tech-Old· 255,859 sq ft · score 100 (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 Us-Rwc-Sea6's energy grade?
Us-Rwc-Sea6 scores 78 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Us-Rwc-Sea6 use?
Its 2023 site energy-use intensity was 51.1 kBtu/ft² across 257,408 sq ft, including 2,436,260 kWh of electricity and 52,994 therms of natural gas.
What are Us-Rwc-Sea6's carbon emissions?
Us-Rwc-Sea6 reported 871 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2023.
Where is Us-Rwc-Sea6?
Us-Rwc-Sea6 is at 1600 Seaport Boulevard, Redwood City, in Redwood City, California 94063. Its coordinates are 37.51218, -122.20143 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Us-Rwc-Sea6 and when was it built?
Us-Rwc-Sea6 has 257,408 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1999 as its year built. It is classed as office.
Is Us-Rwc-Sea6 covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2023 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, “Us-Rwc-Sea6, Redwood City, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/us-rwc-sea6-1e66cfc0 (data as of July 9, 2026).