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Hunt'S Grove Apartments

Multifamily Housing in California, CA · 548 Hunt Avenue, St. Helena · 94574

At a glance

Hunt'S Grove Apartments is a 48,076-square-foot multifamily housing building at 548 Hunt Avenue, St. Helena in St. Helena, California, built in 1992. In its 2023 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 30.1 kBtu/ft² and 91 tCO₂e of greenhouse-gas emissions. That score is higher than 63% of the 9,612 scored multifamily housing buildings in California.

ENERGY STAR score
97
band A · 2023
Site EUI
30.1
kBtu/ft²
GHG emissions
91
tCO₂e
GHG intensity
1.9
kgCO₂e/ft²
Floor area
48,076
sq ft
Year built
1992
vintage
◆ Loading map…
85–10070–8455–691–54
Location

AB 802 (Public Resources Code §25402.10) · reporting year 2023

Benchmarking record

FieldValue
ENERGY STAR score97 (band A)
Site EUI30.1 kBtu/ft²
Source EUI—
GHG emissions91 tCO₂e
GHG intensity1.9 kgCO₂e/ft²
Electricity220,745 kWh
Natural gas7,149 therms
Gross floor area48,076 sq ft
Source recordcalifornia:5724547:2023

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.

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Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
548 Hunt Avenue, St. Helena
State
California
ZIP
94574
Coordinates
38.51052, -122.46384

Within ~1 km

Nearby benchmarked buildings

No other benchmarked buildings within ~1 km.

See also: most efficient in California · biggest emitters

How does Hunt'S Grove Apartments compare with other multifamily housing buildings in California?

The latest disclosures cover 10,630 multifamily housing buildings in California, out of 40,029 buildings citywide. Hunt'S Grove Apartments's ENERGY STAR score of 97 compares with an average of 82 across the 9,612 that report a score; it scores higher than 63% of them and lower than 34%. Its site EUI of 30.1 kBtu/ft² is about 12% below the average of 34.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.9 kgCO₂e/ft² is roughly in line with the group average of 2.1 kgCO₂e/ft².

At 48,076 sq ft, it is about 68% below the average floor area of 150,919 sq ft for those buildings. It was built in 1992, 4 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. Hunt'S Grove Apartments's 30.1 kBtu/ft² across 48,076 sq ft works out to about 1.4 billion Btu (424 MWh-equivalent) in 2023. The disclosure also reports 220,745 kWh of electricity and 7,149 therms of natural gas for the year.

Which law requires Hunt'S Grove Apartments to report its energy use?

Hunt'S Grove Apartments 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:5724547:2023). 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 multifamily housing buildings in California

Frequently asked questions

What is Hunt'S Grove Apartments's energy grade?

Hunt'S Grove Apartments scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Hunt'S Grove Apartments use?

Its 2023 site energy-use intensity was 30.1 kBtu/ft² across 48,076 sq ft, including 220,745 kWh of electricity and 7,149 therms of natural gas.

What are Hunt'S Grove Apartments's carbon emissions?

Hunt'S Grove Apartments reported 91 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 2023.

Where is Hunt'S Grove Apartments?

Hunt'S Grove Apartments is at 548 Hunt Avenue, St. Helena, in St. Helena, California 94574. Its coordinates are 38.51052, -122.46384 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.

How big is Hunt'S Grove Apartments and when was it built?

Hunt'S Grove Apartments has 48,076 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1992 as its year built. It is classed as multifamily housing.

Is Hunt'S Grove Apartments 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, “Hunt'S Grove Apartments, St. Helena, California — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/california/hunt-s-grove-apartments-8dfc07b0 (data as of July 9, 2026).