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$3,600,000
2 Days On Site

7821 3RD AVENUE S
ST PETERSBURG, FL 33707

For Sale|Single Family Residence|Active
4
Beds
5
Total Baths
4
Full Baths
1
Partial Bath
3,850
SqFt
$935
/SqFt
1958
Built
Subdivision:
SOUTH CSWY ISLE 3RD ADD
County:
Pinellas

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407-922-9767
7821 3RD AVENUE S7821 3RD AVENUE S7821 3RD AVENUE S7821 3RD AVENUE S
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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.

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Listing Snapshot
Price 
$3,600,000
Days On Site 
2 Days
Bedrooms 
4
Inside Area (SqFt) 
3,850 sqft
Total Baths 
5
Full Baths 
4
Partial Baths 
1
Lot Size 
0.19 Acres
Year Built 
1958
MLS® Number 
TB8476329
Status 
Active
Property Tax 
$13,393
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Public Records
Friends & Family
Recent Activity
yesterdayListing updated with changes from the MLS®
2 days agoListing first seen on site
General Features
Acres 
0.19
Attached Garage 
Yes
Direction Faces 
South
Garage 
Yes
Garage Spaces 
3
Levels 
Two
Parking 
Attached
Pets 
Yes
Property Condition 
New Construction
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
SqFt Total 
4000
Style 
ContemporaryElevated
Utilities 
Cable AvailableElectricity ConnectedPhone AvailableSewer ConnectedWater Connected
Water Source 
Public
Interior Features
Appliances 
Bar FridgeDishwasherDisposalExhaust FanMicrowaveRangeRange HoodRefrigeratorTankless Water HeaterWine Refrigerator
Cooling 
Central Air
Flooring 
Hardwood
Furnished 
Unfurnished
Heating 
Central
Interior 
Eat-in KitchenElevatorHigh CeilingsOpen FloorplanWalk-In Closet(s)
Laundry Features 
InsideLaundry Room
Spa 
Yes
Kitchen 
Level - First
Living Room 
Level - First
Master Bedroom 
Level - First
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Exterior Features
Construction Details 
BlockFrame
Exterior 
Private EntrancePrivate YardRain GuttersDock
Lot Features 
Cul-De-SacLandscapedPavedWaterfront
Patio And Porch 
CoveredRear Porch
Pool Features 
GuniteIn GroundSalt WaterPrivate
Private Pool 
Yes
Roof 
Membrane
Spa 
Yes
Spa Features 
HeatedIn Ground
View 
Water
Waterfront 
Yes
Waterfront Features 
BAY HARBOR & INTRACOASTAL
Waterview 
Water
Community Features
Community Features 
Street Lights
MLS Area 
33707 - St Pete/South Pasadena/Gulfport/St Pete Bch
Roads 
Asphalt
Township 
31
Schools
School District
Unknown
Elementary School
Azalea Elementary-PN
Middle School
Azalea Middle-PN
High School
Boca Ciega High-PN
Listing courtesy of COASTAL PROPERTIES GROUP (813) 416-2646



Listing information is provided by Participants of the Stellar MLS. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Properties displayed may be listed or sold by various participants in the MLS Copyright 2026, Stellar MLS.
Last checked: 2026-02-19 09:23 PM EST

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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