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9 Castaña Street

GUAYNABO, PR 00968
  • $10,000,000
  • STATUS: Active
  • ON SITE: 23 Days
  • MLS #: PR9120156
$10,000,000
  • 7
    BEDS
  • 1.2
    ACRES
  • 8
    BATHS
  • 2
    1/2 BATHS
  • 10,000
    SQFT
  • $1,000
    $/SQFT
Type:
Single-Family Home
Built:
1997
County:
Area:

School Ratings & Info

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.

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© 2026 My Florida Regional MLS DBA Stellar MLS. All rights reserved. All listings displayed pursuant to IDX. All listing 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; 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 2026-04-16T23:47:08.463.
www.endlesssummerlivingfl.com/homes/174410038
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9 Castaña Street GUAYNABO, PR 00968

  • Price: $10,000,000
  • Status: Active
  • On Site: 23 Days
  • MLS #: PR9120156
7
Beds
8
Baths
2
½ Baths
1.2
Acres
10,000
SQFT
$1,000
$/SQFT
1997
Built
Neighborhood:
San Patricio Urbanization
County:
Guaynabo
Area:
Guaynabo
Property 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.
Exterior Features

Carport Spaces 4 Carport Yn Yes Construction Materials Concrete Covered Spaces 4 Direction Faces West Exterior Features Basketball CourtOutdoor KitchenTennis Court(s) Foundation Details Concrete Perimeter Pool Features Infinity Pool Private Yn Yes Road Surface Type Asphalt Roof Concrete Water Access Yn No Water Extras Yn No Water View Yn No Waterfront Feet Total 0 Waterfront Yn No

Interior Features

Appliances CooktopDishwasherDryerFreezerIce MakerRefrigeratorWasher Building Area Total 10000 Cooling Mini-Split Unit(s) Cooling YN Yes Fireplace Yn No Flooring Marble Furnished Partially Heating None Heating YN No Interior Features High CeilingsPrimaryBedroom UpstairsWalk-In Closet(s) Laundry Features Laundry Room Levels Two Rooms Kitchen Primary Bedroom (Walk-In Closet(s)) Living Room Sewer Public Sewer Water Source Private

Property Features

Additional Lease Restrictions n/a Association Approval Required Yn No Association Fee 650 Association Fee Frequency Monthly Association Fee Monthly Amount 650 Association Fee Requirement Required Association Yn Yes Down Payment Resource No Flood Zone Code n/a Garage Yn No Lease Considered YN Yes Lease Restrictions YN Yes Max Pet Weight 999 Minimum Lease 6 Months New Construction Yn No Ownership Fee Simple Pets Allowed Yes Property Sub Type Single Family Residence Special Listing Conditions None Total Annual Fees 7800 Total Monthly Fees 650 Utilities Electricity ConnectedWater Connected Yrs Of Owner Prior To Leasing Re No Zoning RESI


Listing information © 2026 My Florida Regional MLS DBA Stellar MLS..
Listing provided courtesy of JOEL A KATZ: 787-587-4331.



© 2026 My Florida Regional MLS DBA Stellar MLS. All rights reserved. All listings displayed pursuant to IDX. All listing 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; 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 2026-04-16T23:47:08.463.
 
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