Residential Property - Single Family Residence in St Petersburg
Listing Price: $3,600,000Cumulative Days on Market: 81
Description of Property
Pre-Construction. To be built. Pre-Construction | To Be Built | Causeway Isles Waterfront Build your dream home on one of St. Petersburg’s most desirable open-water homesites in the heart of Causeway Isles. Located at 7821 3rd Ave S, this exceptional property offers over 100 feet of deep saltwater frontage with a protected yacht slip suitable for vessels up to 80 feet. Enjoy expansive water views, peaceful surroundings, and unforgettable sunset skies overlooking Sunset Park—perfectly capturing the essence of waterfront living. This prime location places you just minutes from downtown St. Pete, the beaches of Treasure Island, and direct access to the Intracoastal Waterway, making it ideal for both boating and everyday convenience. A new seawall installed in May 2025 adds long-term value and confidence as you plan your future residence. The lot comfortably supports a custom home in the 3,850+ square foot range, allowing for a thoughtfully designed layout that embraces indoor-outdoor living. A proposed concept features a 4-bedroom, 4.5-bath design with a private pool, outdoor kitchen, spacious covered lanai, and optional elevator. The architecture leans toward a modern coastal style, incorporating clean lines, natural light, and expansive glass to highlight the water views. Neo Homes offers a full turnkey design-build approach, including: Custom architecture and interior design High-end, curated finish selections Hurricane-rated construction built to Florida standards A streamlined, start-to-finish building experience This is an opportunity to create a personalized waterfront residence tailored to your lifestyle in a well-established boating community. If you’ve been searching for a premium waterfront homesite in St. Petersburg, this property is truly worth exploring. Note: Photos shown are from a previously completed home by Neo Homes and are intended to represent the quality, craftsmanship, and level of finishes available for this homesite.







































Property Details At A Glance
Property Type: Residential
Property Use or Sub Type: Single Family Residence
City: St Petersburg
County: Pinellas
Subdivision: South Cswy Isle 3rd Add
Bedrooms: 4
Bathrooms: 4
Half Baths: 1
Sq. Ft. Gross: 4,000
Sq. Ft. Living Area: 3,850
Cost per (heated) sqare foot: $935
Year built: 2026
Annual Tax: $13,393
Taxes and fees can change periodically, and other fees may apply. Please check with your Realtor for more details.
Appliances: Refrigerator
Flooring: Engineered Hardwood
Pool & Waterfront Info
Private Pool: Yes
Pool Features: In Ground
Water Front: Yes
Water Frontage: Freshwater Canal w/Lift to Saltwater Canal
Water Access: Yes
Water Access Type: Freshwater Canal w/Lift to Saltwater Canal
Exterior & Construction
Construction: Wood Frame
Foundation: Stilt/On Piling
Roof: Other
Exterior Features: Outdoor Kitchen
Garage: Yes
Garage Spaces: 2
Floors Total: 1
Floors in Unit: Two
Cooling: Central Air
Heating & Fuel: Central
Sewer: Public Sewer
Water Source: Public
Lot Information
Lot Size (acres): 0.19
Lot Size (sq. ft.): 8,459 square feet
Lot Dimensions: 87 x 100
Front Exposure: Southeast
Legal Description & Other Information
Parcel Number: 243115840420090120
New Construction: Yes
Tax Legal Desc.: SOUTH CAUSEWAY ISLE 3RD ADD BLK 9, LOT 12
Section: 24
Range: 15
Listing courtesy of PHIL DESAUTELS P.A.. The information relating to real estate for sale on this website comes in part from the My Florida Regional MLS DBA Stellar MLS. This information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed accurate by the MLS.

