7821 3RD AVENUE S, St Petersburg, FL 33707

• 4 beds |
• 5 baths |
• 3,850 sqft

Property Description

Pre-Construction. To be built. Pre-Construction - To Be Built - Waterfront Opportunity in Causeway Isles- An exceptional opportunity awaits in coveted Causeway Isles. Perfectly positioned between vibrant St. Petersburg and the sugar-sand beaches of Treasure Island, this prime open-water lot is ready for your custom dream home. Enjoy a sought-after northeast exposure overlooking scenic Sunset Park and a tranquil, protected bay with 103 feet of waterfront frontage. The brand-new seawall (May 2025) provides peace of mind and a strong foundation for what’s to come. This expansive homesite can easily accommodate a luxury residence of approximately 3,850 square feet, complete with a private pool, outdoor kitchen, and covered flex space designed for effortless indoor-outdoor living. The featured concept showcases a four-bedroom, 4.5-bath custom home thoughtfully designed to maximize water views and natural light. Blending clean modern architecture with curated touches of color, texture, and glass, the design captures the essence of refined waterfront living. The result is a home that feels both elevated and inviting—ideal for everything from relaxed weekend brunches to elegant evenings under the stars. Crafted by Neo Homes, the build will include premium finishes, designer selections, hurricane-rated construction, and a true white-glove experience from start to finish. If you’re considering building your waterfront dream home, we would love to connect and are always available for a friendly conversation. As neighborhood residents, we’re passionate about sharing what makes this boating community so special. This is a rare opportunity to create a legacy waterfront estate in one of St. Petersburg’s most desirable enclaves—where luxury, location, and lifestyle meet. Neo Homes is the builder. Note: Photos are from a recently completed home by the builder and are representative of the quality, architectural style, and level of finishes available for this homesite.

Listing Status:

Active

Date Added:

February 17, 2026

Data Last Updated:

March 27, 2026 at 10:23PM

Listing Office:

COASTAL PROPERTIES GROUP : 727-493-1555

Listing Agent:

Debbie McGinty, LLC : 813-416-2646

MLS ID:

TB8476329

Interior

• General: Ceiling Fans(s)Eat-in KitchenElevatorHigh CeilingsKitchen/Family Room ComboOpen FloorplanSolid Surface CountersWalk-In Closet(s)
• Appliances: Bar FridgeDishwasherDisposalExhaust FanMicrowaveRangeRange HoodRefrigeratorTankless Water HeaterWine Refrigerator
• Laundry: InsideLaundry Room
• Flooring: Hardwood
• A/C: Central Air
• Heating: Central

Exterior

• General: Private EntrancePrivate YardRain GuttersHeatedIn Ground
• Style: ContemporaryElevated
• Other Structures: Rear PorchCovered
• Pool: GuniteIn GroundLightingSalt Water

Construction

• Roofing: Membrane
• General: BlockFrameTwoStem Wall

Location

• Road/Access: Asphalt
• Originating MLS: Stellar MLS
• County: Pinellas

Lot

• Zoning: SOUTH CAUSEWAY ISLE 3RD ADD BLK 9LOT 1224-31-15-84042-009-0120
• View: Water

Utilities

• Utilities: Cable AvailableElectricity ConnectedPhone AvailableSewer ConnectedWater Connected
• Water: Public
• Sewer: Public Sewer

Financial

• Source: Stellar MLS
• Ownership: Fee Simple