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.
Features
- Swimming Pool:
- In Ground, Lighting, Gunite, Salt Water
- Heating System:
- Central
- Cooling System:
- Central Air
- Patio:
- Covered, Rear Porch
- Architectural Style:
- Contemporary, Elevated
- Exterior Features:
- Rain Gutters, Private Yard, Private Entrance
- Flooring:
- Hardwood
- Interior Features:
- Ceiling Fans(s), Elevator, Open Floorplan, Walk-In Closet(s), Eat-in Kitchen, Kitchen/Family Room Combo, High Ceilings, Solid Surface Counters
- Laundry Features:
- Inside, Laundry Room
- Pool Private Yn:
- 1
- Sewer:
- Public Sewer
- Utilities:
- Cable Available, Electricity Connected, Phone Available, Sewer Connected, Water Connected
- Waterfront Features:
- Bay/Harbor, Intracoastal Waterway
Appliances
- Appliances:
- Range, Dishwasher, Refrigerator, Microwave, Disposal, Range Hood, Bar Fridge, Exhaust Fan, Wine Refrigerator, Tankless Water Heater
Address Map
- Country:
- US
- State:
- FL
- County:
- Pinellas
- City:
- St Petersburg
- Subdivision:
- SOUTH CSWY ISLE 3RD ADD
- Zipcode:
- 33707
- Street:
- 3RD
- Street Number:
- 7821
- Street Suffix:
- AVENUE
- Longitude:
- W83° 15' 19.7''
- Latitude:
- N27° 45' 59.9''
- Direction Faces:
- South
- Directions:
- I-275 South to St. Petersburg Take Exit 22 (5th AVE North) to 66th St. Turn left South on 66th Street to Central Avenue. Turn Right West on Central Ave towards the beaches. Turn South (left) on 79th ST S. Turn left East on 3rd AVE S. End of street on left.
- Mls Area Major:
- 33707 - St Pete/South Pasadena/Gulfport/St Pete Bch
- Street Dir Suffix:
- S
Neighborhood
- Elementary School:
- Azalea Elementary-PN
- High School:
- Boca Ciega High-PN
- Middle School:
- Azalea Middle-PN
Additional Information
- Water Source:
- Public
- Water Body Name:
- BAY HARBOR & INTRACOASTAL
- Virtual Tour:
- https://www.propertypanorama.com/instaview/stellar/TB8476329
- On Market Date:
- 2026-02-17
- Lot Features:
- Paved, Cul-De-Sac, FloodZone, Landscaped, City Limits
- Levels:
- Two
- Garage:
- 3
- Foundation Details:
- Stem Wall
- Construction Materials:
- Block, Frame
- Community Features:
- Street Lights
- Building Size:
- 4000
- Attached Garage Yn:
- 1
Financial
- Association Yn:
- 1
- Tax Annual Amount:
- 13393
Listing Information
- List Agent Mls Id:
- 260039790
- List Office Mls Id:
- 260031369
- Mls Status:
- Canceled
- Modification Timestamp:
- 2026-03-30T17:52:14Z
- Originating System Name:
- Stellar
- Special Listing Conditions:
- None
- Status Change Timestamp:
- 2026-03-30T16:19:45Z
Residential For Sale
7821 3rd Ave S, St Petersburg, Florida 33707
4 Bedrooms
5 Bathrooms
3,850 Sqft
$3,600,000
Listing ID #TB8476329
Basic Details
- Property Type :
- Residential
- Listing Type :
- For Sale
- Listing ID :
- TB8476329
- Price :
- $3,600,000
- View :
- Water
- Bedrooms :
- 4
- Bathrooms :
- 5
- Half Bathrooms :
- 1
- Square Footage :
- 3,850 Sqft
- Year Built :
- 1958
- Lot Area :
- 0.19 Acre
- Full Bathrooms :
- 4
- New Construction Yn :
- 1
- Property Sub Type :
- Single Family Residence
- Roof:
- Membrane
- Waterfront Yn :
- 1
