Pioneer Warehouse Lofts Building
Multifamily Housing in San Diego, CA · 315 Fourth Ave
At a glance
Pioneer Warehouse Lofts Building is a 120,000-square-foot multifamily housing building at 315 Fourth Ave in San Diego, California, built in 1929. In its 2022 San Diego benchmarking disclosure it reported a site energy-use intensity of 74.8 kBtu/ft².
Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 74.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Gross floor area | 120,000 sq ft |
| Source record | san_diego:101058:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | — | 74.8 kBtu/ft² | — | |
| 2021 | — | 64.1 kBtu/ft² | — |
Compliance context
Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)
San Diego's ordinance requires annual benchmarking for commercial buildings over 50,000 sq ft, with civil penalties for buildings that fail to report.
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
- 315 Fourth Ave
- City
- San Diego
- State
- California
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in San Diego · biggest emitters
How does Pioneer Warehouse Lofts Building compare with other multifamily housing buildings in San Diego?
The latest disclosures cover 469 multifamily housing buildings in San Diego, out of 2,567 buildings citywide. Its site EUI of 74.8 kBtu/ft² is about 183% above the average of 26.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 120,000 sq ft, it is about 41% below the average floor area of 203,251 sq ft for those buildings. It was built in 1929, 65 years earlier than the group's average year built (1994). 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 2 San Diego disclosures for Pioneer Warehouse Lofts Building, covering report years 2021–2022. Site EUI moved from 64.1 kBtu/ft² (2021) to 74.8 kBtu/ft² (2022), an 17% increase.
What does a site EUI of 74.8 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 74.8 kBtu/ft² across 120,000 sq ft works out to about 9 billion Btu (2,631 MWh-equivalent) in 2022.
Which law requires Pioneer Warehouse Lofts Building to report its energy use?
Pioneer Warehouse Lofts Building reports under the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12), the legal basis of San Diego's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2022 disclosure (source record san_diego:101058:2022). San Diego's ordinance requires annual benchmarking for commercial buildings over 50,000 sq ft, with civil penalties for buildings that fail to report.
More multifamily housing buildings in San Diego
- Vida North Park (bh63)· 119,513 sq ft · score 70 (B)
- Cathedral Arms: 3911 Park Boulevard· 119,205 sq ft · score 95 (A)
- Westminster Manor (wt85)· 118,453 sq ft · score 100 (A)
- Casa Ruiz (ca015)· 117,002 sq ft · score 2 (D)
- Boardwalk 1810, LLC· 116,110 sq ft · EUI 24.5 kBtu/ft²
- Village Apartments· 114,816 sq ft · score 100 (A)
- Multifamily Housing buildings in San Diego· 469 benchmarked
- All San Diego benchmarked buildings· Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)
- Most efficient large buildings in San Diego
- Least efficient large buildings in San Diego
- Biggest emitters in San Diego
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 2022 disclosure, but its site energy-use intensity was 74.8 kBtu/ft².
How much energy does Pioneer Warehouse Lofts Building use?
Its 2022 site energy-use intensity was 74.8 kBtu/ft² across 120,000 sq ft.
What are Pioneer Warehouse Lofts Building's carbon emissions?
No greenhouse-gas emissions figure was reported for 2022.
Where is Pioneer Warehouse Lofts Building?
Pioneer Warehouse Lofts Building is at 315 Fourth Ave, in San Diego, California.
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 2022 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is Pioneer Warehouse Lofts Building covered by the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)?
Yes — it appears in the 2022 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12).
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About this data
Source: Building Energy Benchmarking (Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)), 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 — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/san-diego/pioneer-warehouse-lofts-building-e5ee4804 (data as of July 9, 2026).