7821 3RD AVENUE S St Petersburg, FL $ 3,599,999
7821 3RD AVENUE S
$ 3,599,999
Recently Listed New Construction
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7821 3RD AVENUE S

St Petersburg, FL, 33707
$ 3,599,999
Bedrooms4 Baths4.1 Sq 3,850

Monthly Estimate*

$ 22,166

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Single Family Home for sale in St Petersburg, FL

for $3,599,999 with 4 bedrooms and 4 full baths, 1 half bath. This 3,850 square foot home was built in 2026 on a lot size of 0.19.

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.

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Single Family Active

Price

$ 3,599,999

Bedrooms

4

Full Bath

4

Half Bath

1

Property Type

Single Family

Taxes

$ 13,393

Style

Single Family Residence

Lot Size

0.19

Year Built

2026

Town/City

St Petersburg

County/Region

Pinellas

MLS | Web ID

TB8491647

Features
General
Sewer Public Sewer
Heating Central
Cooling Central Air
Utilities Other
Roof Other
Appliances Cooktop Dishwasher Range Range Hood Refrigerator
Garage Spaces 2
Pool Features In Ground
Construction Materials Block Wood Frame
Year Built 2026
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Ownership Fee Simple
Waterfront Features Freshwater Canal w/Lift to Saltwater Canal
County Pinellas
New Construction true
Property Type Residential
Attached Garage true
Subdivision Name SOUTH CSWY ISLE 3RD ADD
Facing Direction Southeast
Garage Y/N true
Total Rooms 7
Full Baths 4
Status Active
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.
City ST PETERSBURG
Senior Community Y/N false
MLS Area 33707 - St Pete/South Pasadena/Gulfport/St Pete Bch
Lot Size Units Square Feet
Lot Size Square Feet 8459
Carport Y/N false
Land Lease Y/N false
Tax Annual Amount 13393.03
Property Condition Pre-Construction
Additional Parcels Y/N false
Lease Considered Y/N false
Virtual Tour https://www.propertypanorama.com/instaview/stellar/TB8491647
Building Area Units Square Feet
Living Area Units Square Feet
Standard Status Active
Occupancy Type Vacant
Tax Lot 12
Legal Description SOUTH CAUSEWAY ISLE 3RD ADD BLK 9 LOT 12
Water View Intracoastal Waterway
Water Access Type Freshwater Canal w/Lift to Saltwater Canal
Water Access Y/N true
Water View Y/N true
Flood Zone Code AE
DockY/N true
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Interior
Interior Amenities Ceiling Fan(s) Kitchen/Family Room Combo Open Floorplan Walk-In Closet(s)
Flooring Engineered Hardwood
Furnished Y/N Unfurnished
Total Stories 1
Air Conditioning Y/N true
Heating Y/N true
Fireplace Y/N false
Half Baths 1
Laundry Features Laundry Room
Total Bedrooms 4
Total Baths 5
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Exterior
Exterior Amenities Irrigation System Outdoor Kitchen
Water Source Public
Lot Size Area 8459
Foundation Details Stilt/On Piling
Building Area Total 4000
Lot Dimensions 87 x 100
Lot Size Acres 0.19
Road Surface Type Asphalt
Private Pool true
Waterfront Y/N true
Covered Spaces 2
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* Excluded Features
List By
Phil Desautels P.A.

Broker

tampabay@tampabay.rr.com

Email

Affordability Calculator

$23,282
Per Month
95%
5%
0%
Monthly Principal & Interest
$22,166
Monthly Property Taxes
$1,116
Monthly Home Insurance
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Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4827338 Elementary School
4827337 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
4/3/2026$3,599,999 Listed Price

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7821 3RD AVENUE S, St Petersburg, FL, 33707 is a Single Family Home for sale at $3,599,999 with 3,850 sqft and a lot size of 0.19. 7821 3RD AVENUE S has 4 bedrooms, 4.1 baths, and was built in 2026. The property's zip code is 33707 which is in St Petersburg, FL