Andaz Napa
Hotel in California, CA · 1450 1St Street, Napa · 94559
At a glance
Andaz Napa is a 108,709-square-foot hotel at 1450 1St Street, Napa in Napa, California, built in 2010. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 48.0 kBtu/ft² and 315 tCO₂e of greenhouse-gas emissions. That score is higher than 79% 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 | 96 (band A) |
| Site EUI | 48.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 315 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 867,870 kWh |
| Natural gas | 22,387 therms |
| Gross floor area | 108,709 sq ft |
| Source record | california:4407190:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 96 | +1 | 48.0 kBtu/ft² | 315 tCO₂e |
| 2023 | 95 | +2 | 51.0 kBtu/ft² | 345 tCO₂e |
| 2022 | 93 | -2 | 54.5 kBtu/ft² | 363 tCO₂e |
| 2021 | 95 | -3 | 50.5 kBtu/ft² | 315 tCO₂e |
| 2020 | 98 | +13 | 42.0 kBtu/ft² | 277 tCO₂e |
| 2019 | 85 | +1 | 68.3 kBtu/ft² | 454 tCO₂e |
| 2018 | 84 | 70.7 kBtu/ft² | 462 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
- 1450 1St Street, Napa
- City
- California
- State
- California
- ZIP
- 94559
- Coordinates
- 38.29757, -122.28927
Within ~1 km
Nearby benchmarked buildings
- Archer Hotel Napascore 83
Hotel · 183,937 sq ft
- The Westin Verasa Napascore —
Hotel · 181,124 sq ft
- Cia At Copiascore —
College/University · 90,000 sq ft
- Napa Creek Manorscore 96
Multifamily Housing · 84,000 sq ft
- River Terrace Innscore 95
Hotel · 71,995 sq ft
- River Parkscore 98
Multifamily Housing · 69,850 sq ft
See also: most efficient in California · biggest emitters
How does Andaz Napa compare with other hotel buildings in California?
The latest disclosures cover 1,599 hotel buildings in California, out of 40,029 buildings citywide. Andaz Napa's ENERGY STAR score of 96 compares with an average of 74 across the 1,525 that report a score; it scores higher than 79% of them and lower than 18%. Its site EUI of 48.0 kBtu/ft² is about 27% 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 2.9 kgCO₂e/ft² is about 28% below the group average of 4.0 kgCO₂e/ft².
At 108,709 sq ft, it is about 35% below the average floor area of 167,786 sq ft for those buildings. It was built in 2010, 22 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 Andaz Napa's energy performance changed over time?
BuildingCensus holds 7 California disclosures for Andaz Napa, covering report years 2018–2024. Its ENERGY STAR score went from 84 in 2018 to 96 in 2024 (+12 points); its best year on file was 2020, at 98. Site EUI moved from 70.7 kBtu/ft² (2018) to 48.0 kBtu/ft² (2024), a 32% decrease. Reported emissions went from 462 tCO₂e to 315 tCO₂e over the same span (down 32%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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. Andaz Napa's 48.0 kBtu/ft² across 108,709 sq ft works out to about 5.2 billion Btu (1,529 MWh-equivalent) in 2024. The disclosure also reports 867,870 kWh of electricity and 22,387 therms of natural gas for the year.
Which law requires Andaz Napa to report its energy use?
Andaz Napa 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:4407190:2024). 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 Santa Clara· 108,500 sq ft · score 51 (D)
- Hyatt House San Diego Sorrento Mesa· 108,375 sq ft · score 86 (A)
- Luxe Sunset Boulevard Hotel· 108,355 sq ft · score 96 (A)
- Hilton Santa Cruz Sch· 108,326 sq ft · score 38 (D)
- 311Kb-Snafr-Cy Foothill Ranch· 108,000 sq ft · score 94 (A)
- Lompoc Land Holdings, Llc· 108,000 sq ft · score 100 (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 Andaz Napa's energy grade?
Andaz Napa scores 96 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 Andaz Napa use?
Its 2024 site energy-use intensity was 48.0 kBtu/ft² across 108,709 sq ft, including 867,870 kWh of electricity and 22,387 therms of natural gas.
What are Andaz Napa's carbon emissions?
Andaz Napa reported 315 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2024.
Where is Andaz Napa?
Andaz Napa is at 1450 1St Street, Napa, in Napa, California 94559. Its coordinates are 38.29757, -122.28927 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Andaz Napa and when was it built?
Andaz Napa has 108,709 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2010 as its year built. It is classed as hotel.
Is Andaz Napa 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, “Andaz Napa, Napa, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/andaz-napa-ca8eaf20 (data as of July 9, 2026).