Home in 9 CASTAÑA ST Guaynabo for sale with MLS# PR9120156
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.
9 CASTAÑA ST, Guaynabo, PR 00968
- Price:
- $10,000,000.00
- Original List Price:
- $10,000,000.00
- List Price per Sq Ft (Calculated, Approx.):
- $1,000.00
- Listing Type:
- For Sale
- Status:
- Active
- Listing Category:
- Residential
- Property Type:
- Single Family House
- MLS Number:
- PR9120156
- Bedrooms:
- 7
- Bathrooms Total:
- 10
- Full Bath:
- 8
- Half Bath:
- 2
- Living Area:
- 10,000 Sqft
- Built-Up Area:
- 10,000 Sqft
- Lot Area:
- 52,272 Sqft
- Building Area Source:
- Owner
- Living Area Source:
- Owner
- Lot Size Acres:
- 1.2
- Waterfront:
- No
- Private Pool
- Swimming Pool Features:
- Infinity
- Furnished:
- Partially
- Appliances:
- Dryer, Dishwasher, Refrigerator, Washer, Cooktop, Freezer, Ice Maker
- Interior:
- High Ceilings, Walk-In Closet(s), Primarybedroom Upstairs
- Exterior:
- Tennis Court(s), Outdoor Kitchen, Basketball Court
- Laundry:
- Laundry Room
- Air Conditioning System:
- Mini-split Unit(s)
- Property Entrance Faces:
- West
- Other Equipment:
- Generator, Basketball Court
- Year Built:
- 1997
- Roof:
- Concrete
- Levels:
- Two
- Construction Materials:
- Concrete
- Flooring:
- Marble
- Foundation Details:
- Concrete Perimeter
- Flood Zone Code:
- n/a
- Association Fee:
- $650.00
- Association Fee Frequency:
- Monthly
- Total Annual Fees:
- $7,800.00
- Total Monthly Fees:
- $650.00
- Carport Spaces:
- 4
- Carport
- Sewer:
- Public Sewer
- Utilities Available:
- Electricity Connected, Water Connected
- Water Source:
- Private
- Association
- Minimum Lease Term:
- 6 Months
- Pets Allowed?
- Max Pet Weight:
- 999
- Subdivision Name:
- SAN PATRICIO URBANIZATION
- Senior Community:
- No
- Association Fee Required:
- Required
- Association Management:
- San Patricio Urbanization
- Occupant Type:
- Vacant
- Lease Considered:
- Yes
- Real Estate Folio Number (Parcel Number):
- 062-095-225-04-001
- Zoning:
- RESI
- Title to the property is held by owner as:
- Fee Simple
- Originally published on:
- March 24, 2026 11:14 pm
- Active on the market since:
- March 24, 2026
- Listing Agreement executed on:
- March 24, 2026
- Listing Status Last Changed On:
- March 24, 2026 11:14 pm
- Photos updated on:
- March 24, 2026 11:16 pm
- Last Modified:
- March 25, 2026 10:53 am
- Courtesy of:
- JOEL A KATZ
- Attribution:
- 787-587-4331
- Road Surface Type:
- Asphalt
- Street Name:
- CASTAÑA
- Street Number:
- 9
- City:
- GUAYNABO
- State:
- Puerto Rico
- Zip Code:
- 00968
- County:
- Guaynabo
- Latitude:
- N18° 24' 14.1''
- Longitude:
- W67° 54' 13.8''

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Neighborhood Stats
Source: U.S. Census Bureau, ACS 5-Year Estimates