Westin San Diego
Hotel in California, CA · 400 West Broadway, San Diego · 92101
At a glance
Westin San Diego is a 337,716-square-foot hotel at 400 West Broadway, San Diego in San Diego, California, built in 1990. In its 2023 California benchmarking disclosure it reported a site energy-use intensity of 40.0 kBtu/ft².
AB 802 (Public Resources Code §25402.10) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 40.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 3,495,931 kWh |
| Gross floor area | 337,716 sq ft |
| Source record | california:6369875:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 40.0 kBtu/ft² | — | |
| 2022 | 93 | +5 | 40.2 kBtu/ft² | 905 tCO₂e |
| 2021 | 88 | +2 | 59.8 kBtu/ft² | 1,160 tCO₂e |
| 2020 | 86 | +16 | 67.2 kBtu/ft² | 1,280 tCO₂e |
| 2019 | 70 | +14 | 87.8 kBtu/ft² | 1,754 tCO₂e |
| 2018 | 56 | 95.8 kBtu/ft² | 1,919 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 400 West Broadway, San Diego
- City
- California
- State
- California
- ZIP
- 92101
- Coordinates
- 32.71599, -117.16679
Within ~1 km
Nearby benchmarked buildings
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- Manchestergrand Hyatt San Diegoscore 93
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- 37-L1 Central Courthousescore 77
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See also: most efficient in California · biggest emitters
How does Westin San Diego compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. Its site EUI of 40.0 kBtu/ft² is about 39% below the average of 65.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 337,716 sq ft, it is about twice the average floor area of 167,786 sq ft for those buildings. Its 1990 construction date is close to 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 Westin San Diego's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Westin San Diego, covering report years 2018–2023. Its ENERGY STAR score went from 56 in 2018 to 93 in 2022 (+37 points). Site EUI moved from 95.8 kBtu/ft² (2018) to 40.0 kBtu/ft² (2023), a 58% decrease. Reported emissions went from 1,919 tCO₂e to 905 tCO₂e over the same span (down 53%).
What does a site EUI of 40.0 kBtu/ft² mean?
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. Westin San Diego's 40.0 kBtu/ft² across 337,716 sq ft works out to about 13.5 billion Btu (3,959 MWh-equivalent) in 2023. The disclosure also reports 3,495,931 kWh of electricity for the year.
Which law requires Westin San Diego to report its energy use?
Westin San Diego 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:6369875:2023). 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
- Island Hotel· 337,251 sq ft · score 95 (A)
- Four Seasons Hotel Los Angeles At Beverly Hills· 336,020 sq ft · score 32 (D)
- 09Sb7-Sanlc-The Us Grant, San Diego· 335,810 sq ft · score 43 (D)
- 84Sc7-Westin South Coast Plaza, Costa Mesa· 334,925 sq ft · score 29 (D)
- 21850 Oxnard St· 334,174 sq ft · score 35 (D)
- Pendry Newport Beach· 334,017 sq ft · score 23 (D)
- 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 Westin San Diego's energy grade?
Westin San Diego did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 40.0 kBtu/ft².
How much energy does Westin San Diego use?
Its 2023 site energy-use intensity was 40.0 kBtu/ft² across 337,716 sq ft, including 3,495,931 kWh of electricity.
What are Westin San Diego's carbon emissions?
No greenhouse-gas emissions figure was reported for 2023.
Where is Westin San Diego?
Westin San Diego is at 400 West Broadway, San Diego, in San Diego, California 92101. Its coordinates are 32.71599, -117.16679 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Westin San Diego and when was it built?
Westin San Diego has 337,716 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1990 as its year built. It is classed as hotel.
Is Westin San Diego 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, “Westin San Diego, San Diego, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/westin-san-diego-04dd8e03 (data as of July 9, 2026).