Carlsbad E4
Office in California, CA · 2511 Gateway Road, Carlsbad · 92009
At a glance
Carlsbad E4 is a 89,010-square-foot office building at 2511 Gateway Road, Carlsbad in Carlsbad, California, built in 2018. In its 2019 California benchmarking disclosure it reported an ENERGY STAR score of 81 out of 100 (grade B), a site energy-use intensity of 46.3 kBtu/ft² and 246 tCO₂e of greenhouse-gas emissions. That score is higher than 44% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2019
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 81 (band B) |
| Site EUI | 46.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 246 tCO₂e |
| GHG intensity | 2.8 kgCO₂e/ft² |
| Electricity | 852,191 kWh |
| Natural gas | 13,178 therms |
| Gross floor area | 89,010 sq ft |
| Source record | california:12004465:2019 |
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
- 2511 Gateway Road, Carlsbad
- City
- California
- State
- California
- ZIP
- 92009
- Coordinates
- 33.12669, -117.26522
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Carlsbad E4 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Carlsbad E4's ENERGY STAR score of 81 compares with an average of 75 across the 4,912 that report a score; it scores higher than 44% of them and lower than 54%. Its site EUI of 46.3 kBtu/ft² is about 18% below 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 2.8 kgCO₂e/ft² is about 23% below the group average of 3.6 kgCO₂e/ft².
At 89,010 sq ft, it is about 41% below the average floor area of 151,937 sq ft for those buildings. It was built in 2018, 33 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 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 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. Carlsbad E4's 46.3 kBtu/ft² across 89,010 sq ft works out to about 4.1 billion Btu (1,208 MWh-equivalent) in 2019. The disclosure also reports 852,191 kWh of electricity and 13,178 therms of natural gas for the year.
Which law requires Carlsbad E4 to report its energy use?
Carlsbad E4 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 2019 disclosure (source record california:12004465:2019). 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
- City Hall, 1666 North Main Street, Walnut Creek· 89,000 sq ft · score 20 (D)
- Bmr-200 Oyster Point· 88,999 sq ft · EUI 143.2 kBtu/ft²
- 2385 Northside Drive· 88,934 sq ft · score 72 (B)
- 16215 Alton· 88,903 sq ft · score 30 (D)
- 11175 Santa Monica· 88,862 sq ft · score 90 (A)
- Promontory B· 88,786 sq ft · score 7 (D)
- 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 Carlsbad E4's energy grade?
Carlsbad E4 scores 81 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2019 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Carlsbad E4 use?
Its 2019 site energy-use intensity was 46.3 kBtu/ft² across 89,010 sq ft, including 852,191 kWh of electricity and 13,178 therms of natural gas.
What are Carlsbad E4's carbon emissions?
Carlsbad E4 reported 246 tCO₂e of greenhouse-gas emissions (2.8 kgCO₂e/ft²) for 2019.
Where is Carlsbad E4?
Carlsbad E4 is at 2511 Gateway Road, Carlsbad, in Carlsbad, California 92009. Its coordinates are 33.12669, -117.26522 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Carlsbad E4 and when was it built?
Carlsbad E4 has 89,010 sq ft of gross floor area, as reported in its 2019 disclosure. The disclosure lists 2018 as its year built. It is classed as office.
Is Carlsbad E4 covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2019 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, “Carlsbad E4, Carlsbad, California — 2019 benchmarking disclosure”, https://buildingcensus.com/buildings/california/carlsbad-e4-38014dc5 (data as of July 9, 2026).