9 CASTAÑA STREET, GUAYNABO, PR, 00968
Casa
Nestled on 1.2 acres, 9 Castaña St. represents a rare opportunity to own a multigenerational estate within San Juan’s premier gated community, San Patricio.
Designed by award-winning architect Carlos Betancourt, the residence masterfully balances grand-scale entertaining with a layout that remains intimate and connected, ensuring comfort for every member of the family.
The resort-style outdoor spaces create a private sanctuary in the heart of the city, featuring a fully equipped outdoor kitchen, spa-inspired pool and jacuzzi, basketball court, outdoor air-conditioning system, tranquil koi pond, and a chicken coop.
Inside, the home showcases soaring ceilings and expansive living areas, including multiple formal and informal gathering spaces, a game and media room with direct access to the outdoor entertaining areas, and a fully equipped private gym.
Offering over 10,000 square feet of refined living space, the residence includes 7 bedrooms, 8 full bathrooms, and 2 powder rooms. On the main level, doors open throughout, creating a seamless indoor-outdoor flow, connecting the interior living spaces to the beautifully designed outdoor areas.
Additional features include a double backup generator with automatic transfer switches and a 6,000-gallon cistern with a water treatment system, ensuring comfort and reliability year-round.
The property has a covered carport for 4 vehicles, along with additional driveway parking.
Centrally located, this home is approximately 10 minutes from the Condado area and 25 minutes from Dorado.
Courtesy of JOEL A KATZ, Joel Katz Listing Contact: 787-587-4331
Information provided courtesy of Stellar MLS via MLS GRID.
All listing data is believed accurate but is not guaranteed and must be independently verified. Properties are subject to change, prior sale, or withdrawal without notice. Neither the listing broker(s) nor Firma Real Estate assumes responsibility for typographical errors, inaccuracies, or misprints, and shall be held completely harmless. Listings shown here may be represented or sold by other MLS participants.
Based on data submitted to MLS GRID updated on 12:40 PM UTC on 10/21/2026. Data originates from multiple sources and has not been verified by the broker or MLS GRID. Details regarding Open Houses are subject to change without prior notice. All details should be independently reviewed for accuracy. Featured properties may or may not be listed by the firm or agent presenting this website.
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