Park Plaza Building
Office in California, CA · 1939 Harrison Street, Oakland · 94612
At a glance
Park Plaza Building is a 93,900-square-foot office building at 1939 Harrison Street, Oakland in Oakland, California, built in 1968. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 30.2 kBtu/ft² and 153 tCO₂e of greenhouse-gas emissions. That score is higher than 78% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 95 (band A) |
| Site EUI | 30.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 153 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 786,720 kWh |
| Gross floor area | 93,900 sq ft |
| Source record | california:26971028:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | +2 | 30.2 kBtu/ft² | 153 tCO₂e |
| 2023 | 93 | 32.6 kBtu/ft² | 191 tCO₂e | |
| 2022 | — | 32.1 kBtu/ft² | 205 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1939 Harrison Street, Oakland
- City
- California
- State
- California
- ZIP
- 94612
- Coordinates
- 37.80722, -122.26530
Within ~1 km
Nearby benchmarked buildings
- 300 Lakeside (Kaiser Center)score 66
Office · 957,416 sq ft
- Atlas (Tl078)score 96
Multifamily Housing · 871,584 sq ft
- Cn7351 - 1800 Harrison St.score 99
Office · 812,223 sq ft
Office · 773,898 sq ft
- The Ordwayscore 59
Office · 655,356 sq ft
- 1111 Broadwayscore 90
Office · 572,347 sq ft
See also: most efficient in California · biggest emitters
How does Park Plaza Building compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Park Plaza Building's ENERGY STAR score of 95 compares with an average of 75 across the 4,912 that report a score; it scores higher than 78% of them and lower than 20%. Its site EUI of 30.2 kBtu/ft² is about half of the average of 56.4 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 half of the group average of 3.6 kgCO₂e/ft².
At 93,900 sq ft, it is about 38% below the average floor area of 151,937 sq ft for those buildings. It was built in 1968, 17 years earlier than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Park Plaza Building's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Park Plaza Building, covering report years 2022–2024. Its ENERGY STAR score went from 93 in 2023 to 95 in 2024 (+2 points). Site EUI moved from 32.1 kBtu/ft² (2022) to 30.2 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 205 tCO₂e to 153 tCO₂e over the same span (down 25%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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. Park Plaza Building's 30.2 kBtu/ft² across 93,900 sq ft works out to about 2.8 billion Btu (831 MWh-equivalent) in 2024. The disclosure also reports 786,720 kWh of electricity for the year.
Which law requires Park Plaza Building to report its energy use?
Park Plaza Building 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:26971028:2024). 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 office buildings in California
- Westchester Plaza· 93,827 sq ft · score 69 (C)
- 10949 North Mather Blvd. - Leased· 93,807 sq ft · score 74 (B)
- Arbor· 93,800 sq ft · EUI 47.5 kBtu/ft²
- 850-900 Washington St· 93,797 sq ft · score 76 (B)
- 3210 Porter· 93,734 sq ft · score 65 (C)
- 131 S. Rodeo Dr.· 93,687 sq ft · score 93 (A)
- Office buildings in California· 6,214 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 Park Plaza Building's energy grade?
Park Plaza Building scores 95 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 Park Plaza Building use?
Its 2024 site energy-use intensity was 30.2 kBtu/ft² across 93,900 sq ft, including 786,720 kWh of electricity.
What are Park Plaza Building's carbon emissions?
Park Plaza Building reported 153 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2024.
Where is Park Plaza Building?
Park Plaza Building is at 1939 Harrison Street, Oakland, in Oakland, California 94612. Its coordinates are 37.80722, -122.26530 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Park Plaza Building and when was it built?
Park Plaza Building has 93,900 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1968 as its year built. It is classed as office.
Is Park Plaza Building 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, “Park Plaza Building, Oakland, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/park-plaza-building-ae1a96f2 (data as of July 9, 2026).