About 7821 3rd Avenue S
Pre-Construction. To be built. A Rare Waterfront Opportunity — Available to Be Built A rare opportunity to build in Causeway Isles at 7821 3rd Ave S, St. Petersburg, FL 33707. Envision 3,850 SF of modern living with breathtaking views of downtown St. Pete, set on 100 feet of deep saltwater frontage—perfect for boating, sunsets, and seamless indoor-outdoor entertaining. This tropical modern residence is thoughtfully designed with 5 bedrooms, 5 bathrooms, a resort-style pool and spa, outdoor kitchen, optional private elevator, and all hurricane-rated materials. Featuring top-tier finishes and a brand-new seawall, this home delivers the ultimate Florida waterfront lifestyle—to be built. Note - Photos are from another home that the builder recently built and are merely representative of what we can build together on this lot!
Residential home for sale in ST PETERSBURG, FL at 7821 3rd Avenue S. This 5 bedroom Residential home is priced at $935/sqft
Features of 7821 3rd Avenue S
| MLS® # | TB8461977 |
|---|---|
| Price | $3,599,999 |
| Bedrooms | 5 |
| Bathrooms | 6.00 |
| Full Baths | 5 |
| Half Baths | 1 |
| Square Footage | 3,850 |
| Acres | 0.19 |
| Year Built | 2026 |
| Type | Residential |
| Sub-Type | Single Family Residence |
| Status | Active |
Community Information: St Petersburg
| Address | 7821 3rd Avenue S |
|---|---|
| Area | St Pete/South Pasadena/Gulfport/St Pete Bch |
| Subdivision | SOUTH CSWY ISLE 3RD ADD |
| City | ST PETERSBURG |
| County | Pinellas |
| State | FL |
| Zip Code | 33707-1025 |
Amenities of 7821 3rd Avenue S
| # of Garages | 3 |
|---|---|
| Is Waterfront | Yes |
| Waterfront | Freshwater Canal w/Lift to Saltwater Canal |
| Has Pool | Yes |
| Senior Community | No |
Interior of 7821 3rd Avenue S
| Interior Features | Ceiling Fan(s), High Ceilings, Primary Bedroom Main Floor, PrimaryBedroom Upstairs, Walk-In Closet(s) |
|---|---|
| Appliances | Convection Oven, Cooktop, Dishwasher, Disposal, Range Hood, Refrigerator, Tankless Water Heater, Wine Refrigerator |
| Heating | Central |
| Cooling | Central Air |
| Fireplace | No |
| # of Stories | 1 |
| Furnished | Unfurnished |
Exterior of 7821 3rd Avenue S
| Exterior Features | Balcony, Irrigation System |
|---|---|
| Roof | Other |
| Foundation | Slab |
Additional Information On 7821 3rd Avenue S
| Date Listed | January 7th, 2026 |
|---|---|
| Days on Market | 7 |
| Flood Zone Code | AE |
| Foreclosure | No |
| Short Sale | No |
| RE / Bank Owned | No |
Listing Details
| Office | PHIL DESAUTELS P.A. |
|---|
Map To 7821 3rd Avenue S, ST PETERSBURG
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