Kaiser Permanente - Ca5581 - Montebello Medical Offices
Medical Office in California, CA · 1550 Town Center Drive, Montebello · 90640
At a glance
Kaiser Permanente - Ca5581 - Montebello Medical Offices is a 57,938-square-foot medical office at 1550 Town Center Drive, Montebello in Montebello, California, built in 1987. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 37.9 kBtu/ft² and 141 tCO₂e of greenhouse-gas emissions. That score is higher than 79% of the 546 scored medical office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 37.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 141 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 529,629 kWh |
| Natural gas | 3,900 therms |
| Gross floor area | 57,938 sq ft |
| Source record | california:2551399:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 97 | +42 | 37.9 kBtu/ft² | 141 tCO₂e |
| 2023 | 55 | +47 | 69.0 kBtu/ft² | 259 tCO₂e |
| 2022 | 8 | -6 | 120.2 kBtu/ft² | 429 tCO₂e |
| 2021 | 14 | +7 | 115.9 kBtu/ft² | 373 tCO₂e |
| 2020 | 7 | +3 | 110.9 kBtu/ft² | 400 tCO₂e |
| 2018 | 4 | 128.5 kBtu/ft² | 466 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
- 1550 Town Center Drive, Montebello
- City
- California
- State
- California
- ZIP
- 90640
- Coordinates
- 34.03561, -118.08835
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Kaiser Permanente - Ca5581 - Montebello Medical Offices compare with other medical office buildings in California?
The latest disclosures cover 602 medical office buildings in California, out of 40,029 buildings citywide. Kaiser Permanente - Ca5581 - Montebello Medical Offices's ENERGY STAR score of 97 compares with an average of 63 across the 546 that report a score; it scores higher than 79% of them and lower than 19%. Its site EUI of 37.9 kBtu/ft² is about 60% below the average of 94.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.4 kgCO₂e/ft² is about 57% below the group average of 5.6 kgCO₂e/ft².
At 57,938 sq ft, it is about 43% below the average floor area of 100,847 sq ft for those buildings. It was built in 1987, 4 years earlier than the group's average year built (1991). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².
How has Kaiser Permanente - Ca5581 - Montebello Medical Offices's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Kaiser Permanente - Ca5581 - Montebello Medical Offices, covering report years 2018, 2020, 2021, 2022, 2023, 2024. Its ENERGY STAR score went from 4 in 2018 to 97 in 2024 (+93 points). Site EUI moved from 128.5 kBtu/ft² (2018) to 37.9 kBtu/ft² (2024), a 71% decrease. Reported emissions went from 466 tCO₂e to 141 tCO₂e over the same span (down 70%).
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. Kaiser Permanente - Ca5581 - Montebello Medical Offices's 37.9 kBtu/ft² across 57,938 sq ft works out to about 2.2 billion Btu (644 MWh-equivalent) in 2024. The disclosure also reports 529,629 kWh of electricity and 3,900 therms of natural gas for the year.
Which law requires Kaiser Permanente - Ca5581 - Montebello Medical Offices to report its energy use?
Kaiser Permanente - Ca5581 - Montebello Medical Offices 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:2551399:2024). 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 medical office buildings in California
- Sec Medical Building - 150 E Holt Blvd, Ontario, Ca 91762, Usa· 57,930 sq ft · score 51 (D)
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- Sfvsa - The R&P Disney Family Cancer Ctr· 57,902 sq ft · score 1 (D)
- Sutter Cancer Center· 57,679 sq ft · score 32 (D)
- Beaver Medical Group· 57,630 sq ft
- 39051101-Dignity Glendale· 57,600 sq ft · score 84 (B)
- Medical Office buildings in California· 602 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 Kaiser Permanente - Ca5581 - Montebello Medical Offices's energy grade?
Kaiser Permanente - Ca5581 - Montebello Medical Offices scores 97 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 Kaiser Permanente - Ca5581 - Montebello Medical Offices use?
Its 2024 site energy-use intensity was 37.9 kBtu/ft² across 57,938 sq ft, including 529,629 kWh of electricity and 3,900 therms of natural gas.
What are Kaiser Permanente - Ca5581 - Montebello Medical Offices's carbon emissions?
Kaiser Permanente - Ca5581 - Montebello Medical Offices reported 141 tCO₂e of greenhouse-gas emissions (2.4 kgCO₂e/ft²) for 2024.
Where is Kaiser Permanente - Ca5581 - Montebello Medical Offices?
Kaiser Permanente - Ca5581 - Montebello Medical Offices is at 1550 Town Center Drive, Montebello, in Montebello, California 90640. Its coordinates are 34.03561, -118.08835 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Kaiser Permanente - Ca5581 - Montebello Medical Offices and when was it built?
Kaiser Permanente - Ca5581 - Montebello Medical Offices has 57,938 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1987 as its year built. It is classed as medical office.
Is Kaiser Permanente - Ca5581 - Montebello Medical Offices 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, “Kaiser Permanente - Ca5581 - Montebello Medical Offices, Montebello, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/kaiser-permanente-ca5581-montebello-medical-offices-dc554a53 (data as of July 9, 2026).