740 El Camino Del Mar, rendering by Richard Beard Architects

Mansion Expansion Proposed For Record-Setting House in Sea Cliff, San Francisco

Preliminary plans have surfaced for 740 El Camino Del Mar in San Francisco’s Sea Cliff neighborhood. The property sold this June to a Biotech CEO for $20 million, setting a new price-per-square-foot record in San Francisco. Recent plans surfaced that would replace the existing house with a larger mansion and an ADU. Local permit expediter GBA SF is responsible for the application.

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