K Street Flats (Ks001)
Multifamily Housing in California, CA · 2020 Kittredge Street, Berkeley · 94700
At a glance
K Street Flats (Ks001) is a 159,546-square-foot multifamily housing building at 2020 Kittredge Street, Berkeley in Berkeley, California, built in 2006. In its 2020 California benchmarking disclosure it reported an ENERGY STAR score of 98 out of 100 (grade A), a site energy-use intensity of 29.3 kBtu/ft² and 432 tCO₂e of greenhouse-gas emissions. That score is higher than 66% of the 9,612 scored multifamily housing buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2020
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 98 (band A) |
| Site EUI | 29.3 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 432 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 763,943 kWh |
| Natural gas | 19,179 therms |
| Gross floor area | 159,546 sq ft |
| Source record | california:6376965:2020 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2020latest | 98 | +5 | 29.3 kBtu/ft² | 432 tCO₂e |
| 2019 | 93 | 34.3 kBtu/ft² | 521 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
- 2020 Kittredge Street, Berkeley
- City
- California
- State
- California
- ZIP
- 94700
- Coordinates
- 37.86836, -122.26886
Within ~1 km
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- Li Ka Shingscore —
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See also: most efficient in California · biggest emitters
How does K Street Flats (Ks001) 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. K Street Flats (Ks001)'s ENERGY STAR score of 98 compares with an average of 82 across the 9,612 that report a score; it scores higher than 66% of them and lower than 29%. Its site EUI of 29.3 kBtu/ft² is about 15% 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 2.7 kgCO₂e/ft² is about 29% above the group average of 2.1 kgCO₂e/ft².
At 159,546 sq ft, it is roughly in line with the average floor area of 150,919 sq ft for those buildings. It was built in 2006, 18 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.
How has K Street Flats (Ks001)'s energy performance changed over time?
BuildingCensus holds 2 California disclosures for K Street Flats (Ks001), covering report years 2019–2020. Its ENERGY STAR score went from 93 in 2019 to 98 in 2020 (+5 points). Site EUI moved from 34.3 kBtu/ft² (2019) to 29.3 kBtu/ft² (2020), a 15% decrease. Reported emissions went from 521 tCO₂e to 432 tCO₂e over the same span (down 17%).
What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 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. K Street Flats (Ks001)'s 29.3 kBtu/ft² across 159,546 sq ft works out to about 4.7 billion Btu (1,370 MWh-equivalent) in 2020. The disclosure also reports 763,943 kWh of electricity and 19,179 therms of natural gas for the year.
Which law requires K Street Flats (Ks001) to report its energy use?
K Street Flats (Ks001) 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 2020 disclosure (source record california:6376965:2020). 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
- San Martin De Porres Apartments· 159,540 sq ft
- Pasadena Gateway Villas (Pa653)· 159,536 sq ft · score 94 (A)
- Legado Encino· 159,500 sq ft · score 80 (B)
- 5351 47Th Ave, Sacramento, California 95824· 159,456 sq ft · score 100 (A)
- 1650 Park Ln· 159,429 sq ft · score 100 (A)
- Piedmont Apartments· 159,391 sq ft · EUI 31.9 kBtu/ft²
- 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 K Street Flats (Ks001)'s energy grade?
K Street Flats (Ks001) scores 98 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2020 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does K Street Flats (Ks001) use?
Its 2020 site energy-use intensity was 29.3 kBtu/ft² across 159,546 sq ft, including 763,943 kWh of electricity and 19,179 therms of natural gas.
What are K Street Flats (Ks001)'s carbon emissions?
K Street Flats (Ks001) reported 432 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2020.
Where is K Street Flats (Ks001)?
K Street Flats (Ks001) is at 2020 Kittredge Street, Berkeley, in Berkeley, California 94700. Its coordinates are 37.86836, -122.26886 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is K Street Flats (Ks001) and when was it built?
K Street Flats (Ks001) has 159,546 sq ft of gross floor area, as reported in its 2020 disclosure. The disclosure lists 2006 as its year built. It is classed as multifamily housing.
Is K Street Flats (Ks001) covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2020 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, “K Street Flats (Ks001), Berkeley, California — 2020 benchmarking disclosure”, https://buildingcensus.com/buildings/california/k-street-flats-ks001-2fc50107 (data as of July 9, 2026).