4 C Square
Multifamily Housing in San Diego, CA · 428 C Street
At a glance
4 C Square is a 63,200-square-foot multifamily housing building at 428 C Street in San Diego, California, built in 1944. It is listed in the 2022 Building Energy Benchmarking disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year.
No energy data reported for 2022
4 C Square appears in the 2022 Building Energy Benchmarking disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year.
Floor area on file: 63,200 sq ft · Built 1944
Source record san_diego:100049:2022
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
- 428 C Street
- City
- San Diego
- State
- California
- Coordinates
- 32.71708, -117.16044
Within ~1 km
Nearby benchmarked buildings
- Hyatt Manchester San Diegoscore 71
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- Manchestergrand Hyatt San Diegoscore 93
Hotel · 1,669,261 sq ft
- Vantage Pointe - 29257score 89
Multifamily Housing · 759,288 sq ft
- 81531100 - Vantage Pointescore 80
Multifamily Housing · 729,066 sq ft
- 37-L1 Central Courthousescore 77
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- 1 Columbia Placescore 76
Office · 645,026 sq ft
See also: most efficient in San Diego · biggest emitters
How has 4 C Square's energy performance changed over time?
BuildingCensus holds 2 San Diego disclosures for 4 C Square, covering report years 2021–2022. None of those years carry an ENERGY STAR score or site EUI.
Which law requires 4 C Square to report its energy use?
4 C Square 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:100049:2022). 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
- Mayberry Townhomes (my020)· 62,580 sq ft · score 94 (A)
- 6867 Golfcrest Drive - San Diego· 62,100 sq ft · score 69 (C)
- 404 N 47th Street· 62,000 sq ft
- Parkside (pr86)· 61,900 sq ft · score 100 (A)
- Victoria at Comm 22 (TCAC)· 60,850 sq ft · score 93 (A)
- Knox Glen (kn246)· 60,764 sq ft
- 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 4 C Square's energy grade?
4 C Square has no grade: it did not report energy data for 2022. The 2022 Building Energy Benchmarking disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is 4 C Square?
4 C Square is at 428 C Street, in San Diego, California. Its coordinates are 32.71708, -117.16044 (latitude, longitude), as published in the Building Energy Benchmarking file.
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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, “4 C Square, San Diego, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/san-diego/4-c-square-d2f7534a (data as of July 9, 2026).