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100 Post Street

Updated Aug 11, 2026

Tim Cerny Of Fountainhead Development Acquires Mixed-use Building From Aronson Family For $12.35M
SOLDMixed-use

Tim Cerny Of Fountainhead Development Acquires Mixed-use Building From Aronson Family For $12.35M

100 Post Street

$12,350,000

$281/SF

Building Size

43,900 SF

Asset Type

Mixed-use

Closing

Aug 4, 2026

About this deal

AI

The property asset involved in the transaction is a mixed-use building located at 100 Post Street in San Francisco, CA. The asset spans 43,900 square feet and was sold for $12,350,000, translating to a price per square foot of $281. The property is largely vacant following the departure of Charles Schwab and includes both retail and office space in proximity to Union Square.

Summary of transaction details:

  • Property Type: Mixed-use
  • Transaction Amount: $12,350,000
  • Square Footage: 43,900
  • Price per Square Foot: $281
  • Buyer: Tim Cerny - Fountainhead Development
  • Seller: Aronson family
  • Market: San Francisco, CA

Tim Cerny, representing Fountainhead Development, acquired the property from the Aronson family. This purchase marks Fountainhead's third acquisition in downtown San Francisco since entering the market in 2024, while specific redevelopment or leasing plans for the property have not been disclosed.

On the Map

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$12,350,000

$281/SF

Mixed-use

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Players

Tim Cerny

Fountainhead Development

Buyer

$12.4M

vol

1 deal

Buyer
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Post Mixed-use Market Snapshot

Boundary boundary · Mixed-use · Sale transactions

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Deal FAQ

About $281 per square foot on a published $12.4M for 43,900 square feet (2026).

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Browse California mixed use sales on Traded.

Purchase Price

Annual NOI

Loan Amount

Interest Rate (%)

Loan Term (yrs)

Down Payment (%)

Cap Rate

1.28%

Cash-on-Cash

-0.37%

Monthly Payment

$14,164

Annual Debt Svc

$169,964

Annual Cash Flow

$-11,334

DSCR

0.93

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