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7821 3rd Ave, St Petersburg, FL 33707
7821 3rd Ave, St Petersburg, FL 33707 3D Tour
7821 3rd Ave, St Petersburg, FL 33707 Explore 3D Tour
7821 3rd Ave, St Petersburg, FL 33707
7821 3rd Ave, St Petersburg, FL 33707
7821 3rd Ave, St Petersburg, FL 33707
7821 3rd Ave, St Petersburg, FL 33707

7821 3rd Ave St Petersburg, FL 33707

$3,600,000

ACTIVE
Beds
4
Baths
5
Sqft
3,850
Acres
0.19
Year
1958
Days on Site
55
Property Type
Residential
Sub Type
Single Family
Per Square Foot
$935
Date Listed
Feb 17, 2026

Description of 7821 3rd Ave, St Petersburg, FL 33707

Listing details for 7821 3rd Ave, St Petersburg, FL 33707 : 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. Please visit NeoHome.net for additional information on the builder Neo Homes. 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 Updated : 02-18-2026 at 7:17 AM EST
Listing Provided By : Debbie McGinty, LLC, 727-493-1555, COASTAL PROPERTIES GROUP
Source :

Stellar MLS as distributed by MLS GRID, MLS#: MFRTB8476329

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Based on information submitted to the MLS GRID as of 2026-04-13 at 12:02 p.m. EDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information

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Listing data comes from My Florida Regional MLS DBA Stellar MLS.