Rialto Capital Foreclosed on 580 Market Street
The owner lost the downtown office property after failing to repay a $15.7 million loan.
Updated on Sept. 30, 2026 in Commercial
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Rialto Capital has taken control of the 35,000-square-foot office building at 580 Market Street in San Francisco following a default. The move comes after the original owner, Paragon Company, failed to satisfy a $15.7 million loan that matured in June 2025.
Why it matters
This foreclosure highlights the deepening struggles within San Francisco's commercial real estate sector, where property values have plummeted amid low occupancy rates. The shift leaves the future of this Financial District site uncertain as the new owner prepares for a future disposition.
The building was valued at $9.9 million in March 2026, a sharp decline from the $24.2 million purchase price paid by Paragon Company in 2015. As of December 2024, the property remained only 53 percent occupied.
The players
Rialto Capital
An investment management firm that focuses on commercial real estate and credit assets.
Paragon Company
The former owner of the 580 Market Street property that purchased the building in 2015.
The details
Rialto Capital secured the property after the loan maturity triggered a formal foreclosure process. A notice of default was issued to the owner in October 2025, and Rialto Capital eventually paid $5 million to gain control of the asset. The process concludes a period of financial distress for the 35,000-square-foot building, which sits near the Montgomery BART station in a city currently experiencing a 27.2 percent total office vacancy rate.
Timeline
Paragon Company acquired 580 Market Street in 2015.
The $15.7 million loan matured in June 2025.
A notice of default was served in October 2025.
The building was valued at $9.9 million in March 2026.
A disposition of the building is expected in the first quarter of 2028.
The Home Front
This foreclosure underscores the ongoing correction in the San Francisco commercial office market, where current vacancy rates of 27.2 percent continue to challenge property valuations. Such shifts often influence long-term local tax revenue and future development plans in the downtown area.
Residents should monitor how such foreclosures impact the surrounding Financial District, particularly regarding potential changes to local businesses and street-level services. Keep an eye on public redevelopment notices if you live or work near the Montgomery BART station.
The takeaway
The drastic drop in valuation from $24.2 million to $9.9 million illustrates the volatility facing commercial property owners in the current market. Homeowners and investors in the Financial District should track local planning filings to see how the next owner intends to reposition the space.
Further reading
For more on shifting local property trends, see the latest updates in our Commercial section.
Source note: This article includes information reported by The Real Deal New York.
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