Harrison Towers
Multifamily Housing in California, CA · 1621 Harrison Street, Oakland · 94612
At a glance
Harrison Towers is a 81,999-square-foot multifamily housing building at 1621 Harrison Street, Oakland in Oakland, California, built in 1972. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 52.1 kBtu/ft² and 259 tCO₂e of greenhouse-gas emissions. That score is higher than 29% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 52.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 259 tCO₂e |
| GHG intensity | 3.2 kgCO₂e/ft² |
| Electricity | 528,764 kWh |
| Natural gas | 26,171 therms |
| Gross floor area | 81,999 sq ft |
| Source record | california:27583849:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | +18 | 52.1 kBtu/ft² | 259 tCO₂e |
| 2023 | 59 | +10 | 70.2 kBtu/ft² | 345 tCO₂e |
| 2022 | 49 | 74.5 kBtu/ft² | 363 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
- 1621 Harrison Street, Oakland
- City
- California
- State
- California
- ZIP
- 94612
- Coordinates
- 37.80487, -122.26693
Within ~1 km
Nearby benchmarked buildings
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- Atlas (Tl078)score 96
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- Cn7351 - 1800 Harrison St.score 99
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- The Ordwayscore 59
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- 1111 Broadwayscore 90
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See also: most efficient in California · biggest emitters
How does Harrison Towers 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. Harrison Towers's ENERGY STAR score of 77 compares with an average of 82 across the 9,612 that report a score; it scores higher than 29% of them and lower than 70%. Its site EUI of 52.1 kBtu/ft² is about 51% above the average of 34.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.2 kgCO₂e/ft² is about 50% above the group average of 2.1 kgCO₂e/ft².
At 81,999 sq ft, it is about half of the average floor area of 150,919 sq ft for those buildings. It was built in 1972, 16 years earlier 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.
How has Harrison Towers's energy performance changed over time?
BuildingCensus holds 3 California disclosures for Harrison Towers, covering report years 2022–2024. Its ENERGY STAR score went from 49 in 2022 to 77 in 2024 (+28 points). Site EUI moved from 74.5 kBtu/ft² (2022) to 52.1 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 363 tCO₂e to 259 tCO₂e over the same span (down 29%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). 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. Harrison Towers's 52.1 kBtu/ft² across 81,999 sq ft works out to about 4.3 billion Btu (1,252 MWh-equivalent) in 2024. The disclosure also reports 528,764 kWh of electricity and 26,171 therms of natural gas for the year.
Which law requires Harrison Towers to report its energy use?
Harrison Towers 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:27583849:2024). 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 multifamily housing buildings in California
- Fairwood Apartments· 81,983 sq ft · score 97 (A)
- Villa Margarita - 4743 E Olive Ave, Fresno, Ca 93703, Usa· 81,940 sq ft · score 78 (B)
- Northview - Southview - Co (Nr04)· 81,893 sq ft · score 60 (C)
- Castle Argyle· 81,883 sq ft
- 1010 Madden Lane· 81,880 sq ft · score 84 (B)
- Casa Sonoma I And Ii· 81,836 sq ft · score 97 (A)
- Multifamily Housing buildings in California· 10,630 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 Harrison Towers's energy grade?
Harrison Towers scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Harrison Towers use?
Its 2024 site energy-use intensity was 52.1 kBtu/ft² across 81,999 sq ft, including 528,764 kWh of electricity and 26,171 therms of natural gas.
What are Harrison Towers's carbon emissions?
Harrison Towers reported 259 tCO₂e of greenhouse-gas emissions (3.2 kgCO₂e/ft²) for 2024.
Where is Harrison Towers?
Harrison Towers is at 1621 Harrison Street, Oakland, in Oakland, California 94612. Its coordinates are 37.80487, -122.26693 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Harrison Towers and when was it built?
Harrison Towers has 81,999 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1972 as its year built. It is classed as multifamily housing.
Is Harrison Towers 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, “Harrison Towers, Oakland, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/harrison-towers-63e41817 (data as of July 9, 2026).