Hotel Indigo San Diego Gaslamp Quarter
Hotel in California, CA · 509 Ninth Avenue, San Diego · 92101
At a glance
Hotel Indigo San Diego Gaslamp Quarter is a 141,450-square-foot hotel at 509 Ninth Avenue, San Diego in San Diego, California, built in 2009. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 93 out of 100 (grade A), a site energy-use intensity of 53.4 kBtu/ft² and 452 tCO₂e of greenhouse-gas emissions. That score is higher than 71% 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 | 93 (band A) |
| Site EUI | 53.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 452 tCO₂e |
| GHG intensity | 3.2 kgCO₂e/ft² |
| Electricity | 1,361,279 kWh |
| Gross floor area | 141,450 sq ft |
| Source record | california:4562809:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 93 | +1 | 53.4 kBtu/ft² | 452 tCO₂e |
| 2022 | 92 | -1 | 51.8 kBtu/ft² | 466 tCO₂e |
| 2021 | 93 | -1 | 47.6 kBtu/ft² | 402 tCO₂e |
| 2020 | 94 | +14 | 45.5 kBtu/ft² | 383 tCO₂e |
| 2019 | 80 | +2 | 58.6 kBtu/ft² | 511 tCO₂e |
| 2018 | 78 | 58.2 kBtu/ft² | 521 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
- 509 Ninth Avenue, San Diego
- City
- California
- State
- California
- ZIP
- 92101
- Coordinates
- 32.71075, -117.15616
Within ~1 km
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- Hilton San Diego Bayfrontscore 71
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See also: most efficient in California · biggest emitters
How does Hotel Indigo San Diego Gaslamp Quarter compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. Hotel Indigo San Diego Gaslamp Quarter's ENERGY STAR score of 93 compares with an average of 74 across the 1,525 that report a score; it scores higher than 71% of them and lower than 27%. Its site EUI of 53.4 kBtu/ft² is about 19% 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 3.2 kgCO₂e/ft² is about 20% below the group average of 4.0 kgCO₂e/ft².
At 141,450 sq ft, it is about 16% below the average floor area of 167,786 sq ft for those buildings. It was built in 2009, 21 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 Hotel Indigo San Diego Gaslamp Quarter's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Hotel Indigo San Diego Gaslamp Quarter, covering report years 2018, 2019, 2020, 2021, 2022, 2024. Its ENERGY STAR score went from 78 in 2018 to 93 in 2024 (+15 points); its best year on file was 2020, at 94. Site EUI moved from 58.2 kBtu/ft² (2018) to 53.4 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 521 tCO₂e to 452 tCO₂e over the same span (down 13%).
What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 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. Hotel Indigo San Diego Gaslamp Quarter's 53.4 kBtu/ft² across 141,450 sq ft works out to about 7.6 billion Btu (2,214 MWh-equivalent) in 2024. The disclosure also reports 1,361,279 kWh of electricity for the year.
Which law requires Hotel Indigo San Diego Gaslamp Quarter to report its energy use?
Hotel Indigo San Diego Gaslamp Quarter 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:4562809:2024). 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
- Timbri· 141,206 sq ft · score 51 (D)
- 6101 W. Century Blvd. - Ladbs· 141,000 sq ft · score 2 (D)
- Spanish Bay Inn· 141,000 sq ft · score 1 (D)
- Carmel Mission Inn· 140,442 sq ft · score 93 (A)
- Courtyard By Marriott Long Beach Downtown· 140,000 sq ft · score 87 (A)
- Hgi Sunnyvale· 140,000 sq ft · score 91 (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 Hotel Indigo San Diego Gaslamp Quarter's energy grade?
Hotel Indigo San Diego Gaslamp Quarter scores 93 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 Hotel Indigo San Diego Gaslamp Quarter use?
Its 2024 site energy-use intensity was 53.4 kBtu/ft² across 141,450 sq ft, including 1,361,279 kWh of electricity.
What are Hotel Indigo San Diego Gaslamp Quarter's carbon emissions?
Hotel Indigo San Diego Gaslamp Quarter reported 452 tCO₂e of greenhouse-gas emissions (3.2 kgCO₂e/ft²) for 2024.
Where is Hotel Indigo San Diego Gaslamp Quarter?
Hotel Indigo San Diego Gaslamp Quarter is at 509 Ninth Avenue, San Diego, in San Diego, California 92101. Its coordinates are 32.71075, -117.15616 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Hotel Indigo San Diego Gaslamp Quarter and when was it built?
Hotel Indigo San Diego Gaslamp Quarter has 141,450 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as hotel.
Is Hotel Indigo San Diego Gaslamp Quarter 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, “Hotel Indigo San Diego Gaslamp Quarter, San Diego, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/hotel-indigo-san-diego-gaslamp-quarter-ec71f033 (data as of July 9, 2026).