Shell Castle 78 Unit: A Luxurious Coastal Sanctuary Experience effortless island living at Shell Castle 78 Unit, where modern comfort meets natural beauty in a serene, energy-efficient retreat. This custom-designed 5-bedroom, 4-bathroom residence spans an impressive 4,000 sq ft of architectural sophistication, with 3,000 sq ft of refined interior living space crafted for both relaxation and entertainment. Powerful Peace of Mind Never feel the stress of power outages again—this home is fully equipped with solar energy and two 10k batteries, providing seamless, eco-friendly living. With an average electric bill of just $100/ month, this residence offers both sustainability and significant cost savings. A View That Captivates Wake up to breathtaking panoramas of the ocean, bay, lush woodlands, and majestic mountains. Whether relaxing by the infinity pool or unwinding on your private balcony, you’ll enjoy full views of the beach, harbor, and glistening waters—a daily reminder of paradise found. Covered Comfort & Convenience No more worrying about the blazing sun—your vehicles stay cool and protected with covered parking and an attached two-car garage. A true luxury that keeps your car from "melting" and adds everyday convenience to your lifestyle. Elegance Meets Functionality The heart of this home beats with high-end features: Marble flooring throughout for timeless sophistication High ceilings, expansive windows, and custom blinds that bathe each room in natural light. Gourmet kitchen with top-tier appliances: convection oven, cooktop, bar fridge, ice maker, and more Private elevator for effortless access across levels Wet bar and walk-in closets for ultimate luxury and organization Outdoor Paradise Entertain in style with an outdoor oasis that includes: A resort-style infinity pool with gunite constructionOutdoor grill for alfresco dining Hurricane shutters and awnings for peace of mind Built to Last Constructed with solid concrete materials and completed in 2003, this residence blends durability with architectural elegance. A Rare Opportunity Awaits Nestled on a 2,198 sq ft lot, this home offers privacy with modern amenities, including private sewer and water services, along with connected utilities for effortless living. Shell Castle 78 Unit isn’t just a home—it’s a lifestyle of luxury, comfort, and resilience.
- Built in 1993
- 1 garage space
- $583.33/sqft
- Lot size: 1,625 sqft
- 424 days on market
- Directions: ?To drive from Luis Muñoz Marín International Airport (SJU) in San Juan to Palmas del Mar in Humacao, Puerto Rico, follow these directions:? Exit the airport: Begin by heading onto Expreso Las Américas/PR-18 in Gobernador Piñero, San Juan, accessible from Av. Jesús T. Piñero/PR-17.? Merge onto PR-52: Continue on PR-18 and merge onto PR-52 South.? Transition to PR-30: Proceed on PR-52 and take the exit for Cruz Ortiz Stella Expressway/PR-30 East toward Humacao.? Merge onto PR-53: From PR-30, take the exit toward PR-53 South.? Exit at PR-906: Continue on PR-53 and take the exit toward PR-906 in Humacao.? Arrive at Palmas del Mar: Follow PR-906, then turn right onto Palmas Drive and continue on Candelero Road to reach your destination.?
- County: Humacao
- Geo subdivision: PALMAS DEL MAR
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Let's get in touch!
Let's get in touch!

Juliana Jardini
Certified Realtor in Orlando
- Source: Stellar MLS
- MLS #: PR9111982
Listing updated: April 16, 2026 at 4:05PM
Listing provided by: Lillian Gonzalez Rodriguez, ELITE REAL ESTATE
Last checked 2 days ago
Listing provided by: Lillian Gonzalez Rodriguez, ELITE REAL ESTATE
Last checked 2 days ago
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