Description

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.

Explore the Area

Address: CASTAÑA 9
City: Guaynabo
Zip/Postal Code: 00968

Schools

Restaurants

Hospitals

Groceries

Pharmacies

Malls/Stores

Propiedades vendidas cerca

1400 MUSEUM SQUARE | CITADEL UNIT 1421 $675,000
117 Amparo Street $157,000
376 ESCORIAL $290,000
CALLE 1 $170,000
1960 BORIQUEN $500,000
Street 9 K $840,000
La Villa de Torrimar REINA VICTORIA $2,360,000
Petunia SANTA MARIA $1,450,000
R13 NEBRASKA $385,000
#85 G St. VIETNAM COMM $65,000
145 TRAFALGAR SQUARE UNIT 145 $739,000
Acropolis URB Street. MOUNT OLYMPUS UNIT C-11 $1,400,000
1 VICENZA UNIT 280 $420,000
URB GARDEN HILLS TERRACE ST. UNIT L4 $985,000
3I SAN IGNACIO UNIT 3i $105,000
1511 PONCE DE LEON AVENUE UNIT 1061 $830,000
426 ENSENADA BORINQUEN TOWERS III UNIT 1208 $180,000
228 Bellisima Street $1,400,000
E10 C5 $1,325,000
17 REGINA MEDINA UNIT B-208 $230,000

Details

Updated on July 29, 2026 at 6:49 pm

Property ID679399

Price $10,000,000

Property Size10000 ft²

Land Area1.2 ft²

Bedrooms7

Rooms3

Bathrooms9

Year Built1997

Property TypeHome

Property StatusBuy

Días en el mercado60

Features

The data relating to real estate displayed on this website comes in part from the Internet Data Exchange (IDX) Program of Stellar MLS. All listings information is deemed reliable but not guaranteed and should be independently verified through personal inspection by appropriate professionals. Listings displayed on this website may be subject to prior sale or removal from sale; the availability of any listing should always be independently verified. Listing information is provided for consumers' personal, non-commercial use, solely to identify potential properties for potential purchase; all other use is strictly prohibited and may violate relevant federal and state law.

Data last updated 06/01/2026