Horton Grand Hotel
Hotel in California, CA · 311 Island Avenue, San Diego · 92101
At a glance
Horton Grand Hotel is a 107,615-square-foot hotel at 311 Island Avenue, San Diego in San Diego, California, built in 1986. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 99 out of 100 (grade A), a site energy-use intensity of 24.9 kBtu/ft² and 169 tCO₂e of greenhouse-gas emissions. That score is higher than 88% of the 1,525 scored hotel buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 99 (band A) |
| Site EUI | 24.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 169 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 745,090 kWh |
| Gross floor area | 107,615 sq ft |
| Source record | california:11878608:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 99 | 24.9 kBtu/ft² | 169 tCO₂e | |
| 2022 | — | — | — | |
| 2019 | 94 | 49.8 kBtu/ft² | 314 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
- 311 Island Avenue, San Diego
- City
- California
- State
- California
- ZIP
- 92101
- Coordinates
- 32.71034, -117.16126
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Horton Grand Hotel compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. Horton Grand Hotel's ENERGY STAR score of 99 compares with an average of 74 across the 1,525 that report a score; it scores higher than 88% of them and lower than 9%. Its site EUI of 24.9 kBtu/ft² is about 62% below 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 1.6 kgCO₂e/ft² is about 61% below the group average of 4.0 kgCO₂e/ft².
At 107,615 sq ft, it is about 36% below the average floor area of 167,786 sq ft for those buildings. Its 1986 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 Horton Grand Hotel's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Horton Grand Hotel, covering report years 2019, 2022, 2024. Its ENERGY STAR score went from 94 in 2019 to 99 in 2024 (+5 points). Site EUI moved from 49.8 kBtu/ft² (2019) to 24.9 kBtu/ft² (2024), a 50% decrease. Reported emissions went from 314 tCO₂e to 169 tCO₂e over the same span (down 46%).
What does an ENERGY STAR score of 99 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 99 means the building performs better than about 99% of its national peers. BuildingCensus bands the score into report-card grades; 99 falls in band A — high performer (85–100). 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. Horton Grand Hotel's 24.9 kBtu/ft² across 107,615 sq ft works out to about 2.7 billion Btu (785 MWh-equivalent) in 2024. The disclosure also reports 745,090 kWh of electricity for the year.
Which law requires Horton Grand Hotel to report its energy use?
Horton Grand Hotel 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:11878608:2024). 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 hotel buildings in California
- Hyatt House San Jose Airport· 107,153 sq ft · score 91 (A)
- San Jose Airport Ca Hh· 107,153 sq ft · score 85 (A)
- 2050 North California Blvd· 107,000 sq ft · score 68 (C)
- 57F45-Snatu-Residence Inn Santa Ana Tustin· 106,698 sq ft · score 51 (D)
- Hotel Americania· 106,697 sq ft · score 100 (A)
- Hotel Spero· 106,577 sq ft · score 72 (B)
- 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 Horton Grand Hotel's energy grade?
Horton Grand Hotel scores 99 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Horton Grand Hotel use?
Its 2024 site energy-use intensity was 24.9 kBtu/ft² across 107,615 sq ft, including 745,090 kWh of electricity.
What are Horton Grand Hotel's carbon emissions?
Horton Grand Hotel reported 169 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2024.
Where is Horton Grand Hotel?
Horton Grand Hotel is at 311 Island Avenue, San Diego, in San Diego, California 92101. Its coordinates are 32.71034, -117.16126 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Horton Grand Hotel and when was it built?
Horton Grand Hotel has 107,615 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1986 as its year built. It is classed as hotel.
Is Horton Grand Hotel 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, “Horton Grand Hotel, San Diego, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/horton-grand-hotel-40e35122 (data as of July 9, 2026).