3131G-Sanon-Oceanside Courtyard By Marriott
Hotel in California, CA · 3501 Seagate Way, Oceanside · 92056
At a glance
3131G-Sanon-Oceanside Courtyard By Marriott is a 82,121-square-foot hotel at 3501 Seagate Way, Oceanside in Oceanside, California, built in 2011. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 63.1 kBtu/ft² and 321 tCO₂e of greenhouse-gas emissions. That score is higher than 51% of the 1,525 scored hotel buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 84 (band B) |
| Site EUI | 63.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 321 tCO₂e |
| GHG intensity | 3.9 kgCO₂e/ft² |
| Electricity | 733,939 kWh |
| Natural gas | 26,927 therms |
| Gross floor area | 82,121 sq ft |
| Source record | california:3351875:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 84 | +7 | 63.1 kBtu/ft² | 321 tCO₂e |
| 2022 | 77 | -10 | 62.8 kBtu/ft² | 315 tCO₂e |
| 2020 | 87 | 53.3 kBtu/ft² | 263 tCO₂e | |
| 2019 | — | 73.3 kBtu/ft² | 370 tCO₂e | |
| 2018 | — | 72.4 kBtu/ft² | 371 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
- 3501 Seagate Way, Oceanside
- City
- California
- State
- California
- ZIP
- 92056
- Coordinates
- 33.20663, -117.31092
Within ~1 km
Nearby benchmarked buildings
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- 3817 Ocean Ranch Blvd - 13280score 71
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- Ocoscore 98
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- Sunset View Apartments (Sn023)score 76
Multifamily Housing · 98,666 sq ft
Hotel · 86,522 sq ft
See also: most efficient in California · biggest emitters
How does 3131G-Sanon-Oceanside Courtyard By Marriott compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. 3131G-Sanon-Oceanside Courtyard By Marriott's ENERGY STAR score of 84 compares with an average of 74 across the 1,525 that report a score; it scores higher than 51% of them and lower than 47%. Its site EUI of 63.1 kBtu/ft² is roughly in line with the average of 65.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.9 kgCO₂e/ft² is roughly in line with the group average of 4.0 kgCO₂e/ft².
At 82,121 sq ft, it is about half of the average floor area of 167,786 sq ft for those buildings. It was built in 2011, 23 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has 3131G-Sanon-Oceanside Courtyard By Marriott's energy performance changed over time?
BuildingCensus holds 5 California disclosures for 3131G-Sanon-Oceanside Courtyard By Marriott, covering report years 2018, 2019, 2020, 2022, 2023. Its ENERGY STAR score went from 87 in 2020 to 84 in 2023 (-3 points); its best year on file was 2020, at 87. Site EUI moved from 72.4 kBtu/ft² (2018) to 63.1 kBtu/ft² (2023), a 13% decrease. Reported emissions went from 371 tCO₂e to 321 tCO₂e over the same span (down 13%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 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. 3131G-Sanon-Oceanside Courtyard By Marriott's 63.1 kBtu/ft² across 82,121 sq ft works out to about 5.2 billion Btu (1,519 MWh-equivalent) in 2023. The disclosure also reports 733,939 kWh of electricity and 26,927 therms of natural gas for the year.
Which law requires 3131G-Sanon-Oceanside Courtyard By Marriott to report its energy use?
3131G-Sanon-Oceanside Courtyard By Marriott 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:3351875:2023). 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 hotel buildings in California
- Ayres Hotel Anaheim· 82,072 sq ft · score 92 (A)
- Dn0002-Homewood Suites By Hilton San Bernardino· 82,039 sq ft · score 88 (A)
- 552-Rancho Cordova Homewood Suites· 82,010 sq ft · score 87 (A)
- 5620-Hilton Garden Inn Pismo Beach· 81,880 sq ft · score 81 (B)
- Residence Inn Loma Linda Redlands· 81,833 sq ft · score 91 (A)
- 582-Redlands Residence Inn· 81,833 sq ft · score 90 (A)
- Hotel buildings in California· 1,599 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 3131G-Sanon-Oceanside Courtyard By Marriott's energy grade?
3131G-Sanon-Oceanside Courtyard By Marriott scores 84 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 3131G-Sanon-Oceanside Courtyard By Marriott use?
Its 2023 site energy-use intensity was 63.1 kBtu/ft² across 82,121 sq ft, including 733,939 kWh of electricity and 26,927 therms of natural gas.
What are 3131G-Sanon-Oceanside Courtyard By Marriott's carbon emissions?
3131G-Sanon-Oceanside Courtyard By Marriott reported 321 tCO₂e of greenhouse-gas emissions (3.9 kgCO₂e/ft²) for 2023.
Where is 3131G-Sanon-Oceanside Courtyard By Marriott?
3131G-Sanon-Oceanside Courtyard By Marriott is at 3501 Seagate Way, Oceanside, in Oceanside, California 92056. Its coordinates are 33.20663, -117.31092 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 3131G-Sanon-Oceanside Courtyard By Marriott and when was it built?
3131G-Sanon-Oceanside Courtyard By Marriott has 82,121 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2011 as its year built. It is classed as hotel.
Is 3131G-Sanon-Oceanside Courtyard By Marriott 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, “3131G-Sanon-Oceanside Courtyard By Marriott, Oceanside, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/3131g-sanon-oceanside-courtyard-by-marriott-d83e08cf (data as of July 9, 2026).