Pioneer Warehouse Lofts Building
Multifamily Housing in California, CA · 310 Fifth Avenue, San Diego · 92101
At a glance
Pioneer Warehouse Lofts Building is a 120,000-square-foot multifamily housing building at 310 Fifth Avenue, San Diego in San Diego, California, built in 1929. In its 2024 California benchmarking disclosure it reported a site energy-use intensity of 147.0 kBtu/ft² and 973 tCO₂e of greenhouse-gas emissions.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 147.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 973 tCO₂e |
| GHG intensity | 8.1 kgCO₂e/ft² |
| Electricity | 789,645 kWh |
| Gross floor area | 120,000 sq ft |
| Source record | california:10692582:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 147.0 kBtu/ft² | 973 tCO₂e | |
| 2023 | — | 66.8 kBtu/ft² | 499 tCO₂e | |
| 2022 | — | 74.3 kBtu/ft² | 556 tCO₂e | |
| 2021 | — | 63.8 kBtu/ft² | 447 tCO₂e | |
| 2020 | — | 54.1 kBtu/ft² | 416 tCO₂e | |
| 2019 | — | 71.4 kBtu/ft² | 528 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
- 310 Fifth Avenue, San Diego
- City
- California
- State
- California
- ZIP
- 92101
- Coordinates
- 32.70854, -117.16028
Within ~1 km
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See also: most efficient in California · biggest emitters
How does Pioneer Warehouse Lofts Building 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. Its site EUI of 147.0 kBtu/ft² is about 327% 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 8.1 kgCO₂e/ft² is about 286% above the group average of 2.1 kgCO₂e/ft².
At 120,000 sq ft, it is about 20% below the average floor area of 150,919 sq ft for those buildings. It was built in 1929, 59 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 Pioneer Warehouse Lofts Building's energy performance changed over time?
BuildingCensus holds 6 California disclosures for Pioneer Warehouse Lofts Building, covering report years 2019–2024. Site EUI moved from 71.4 kBtu/ft² (2019) to 147.0 kBtu/ft² (2024), an 106% increase. Reported emissions went from 528 tCO₂e to 973 tCO₂e over the same span (up 84%).
What does a site EUI of 147.0 kBtu/ft² mean?
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. Pioneer Warehouse Lofts Building's 147.0 kBtu/ft² across 120,000 sq ft works out to about 17.6 billion Btu (5,170 MWh-equivalent) in 2024. The disclosure also reports 789,645 kWh of electricity for the year.
Which law requires Pioneer Warehouse Lofts Building to report its energy use?
Pioneer Warehouse Lofts 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:10692582:2024). 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
- Westcreek Apartments (Ws026)· 119,980 sq ft · score 31 (D)
- Westcreek Apartments· 119,980 sq ft · score 27 (D)
- Rialta At Canoga· 119,973 sq ft · score 51 (D)
- 8561 De Soto Blvd· 119,973 sq ft · score 30 (D)
- The Coronet· 119,861 sq ft · score 36 (D)
- Crestwood Whittier· 119,790 sq ft · score 75 (B)
- 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 Pioneer Warehouse Lofts Building's energy grade?
Pioneer Warehouse Lofts Building did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 147.0 kBtu/ft².
How much energy does Pioneer Warehouse Lofts Building use?
Its 2024 site energy-use intensity was 147.0 kBtu/ft² across 120,000 sq ft, including 789,645 kWh of electricity.
What are Pioneer Warehouse Lofts Building's carbon emissions?
Pioneer Warehouse Lofts Building reported 973 tCO₂e of greenhouse-gas emissions (8.1 kgCO₂e/ft²) for 2024.
Where is Pioneer Warehouse Lofts Building?
Pioneer Warehouse Lofts Building is at 310 Fifth Avenue, San Diego, in San Diego, California 92101. Its coordinates are 32.70854, -117.16028 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Pioneer Warehouse Lofts Building and when was it built?
Pioneer Warehouse Lofts Building has 120,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is Pioneer Warehouse Lofts 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, “Pioneer Warehouse Lofts Building, San Diego, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/pioneer-warehouse-lofts-building-6d794cf7 (data as of July 9, 2026).