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$3,600,000 Just Listed

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 4 Full Baths
  • 1 Partial Bath
  • 3,850 Sq. Ft.
  • Updated 2 days ago
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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.

Full Property Details for 7821 3rd Ave S

General

  • Price: $3,600,000
  • Taxes: $13,393 (2025)
  • Status: Active
  • Type: Single Family
  • Source: MidFloridaRegionalMLS
  • MLS ID: TB8476329
  • Updated: 2/18/2026
  • Added to Site: 3 day(s) ago

Rental Information

  • Min. Lease: 1 Month

Interior

  • Number of Rooms: 3
  • Interior Features: Ceiling Fan(s), Eating Space In Kitchen, Elevator, High Ceilings, Kitchen and Family Room Combination, Open Floorplan, Solid Surface Counters, Walk-In Closet(s)
  • Appliances: Bar Fridge, Dishwasher, Disposal, Exhaust Fan, Microwave, Range, Range Hood, Refrigerator, Tankless Water Heater, Wine Refrigerator
  • Furnishings: Unfurnished
  • Flooring: Engineered Hardwood

Rooms

Bathrooms

  • Total Bathrooms: 5
  • Full Bathrooms: 4
  • Half Bathrooms: 1

Bedrooms

  • Total Bedrooms: 4

Other Rooms

  • Laundry: Inside, Laundry Room

Additional Information

  • Pool: Yes
  • Private Pool: Yes
  • Pool Description: Gunite, In Ground, Lighting, Salt Water
  • Spa: Yes
  • Spa Description: Heated, In Ground

Exterior

  • Exterior Features: Private Entrance, Private Yard, Rain Gutters
  • Deck/Patio: Covered, Rear Porch
  • Porch/Patio/Deck: Covered, Rear Porch

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 3
  • Covered Spaces: 3

Location

  • Area: 33707 - St Pete/South Pasadena/Gulfport/St Pete Bch
  • County: Pinellas
  • Development Name: 33707 - St Pete/South Pasadena/Gulfport/St Pete Bch
  • Subdivision: SOUTH CSWY ISLE 3RD ADD
  • Driving 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.
  • Direction Faces: South

School Information

  • Elementary School: Azalea Elementary-PN
  • Middle School: Azalea Middle-PN
  • High School: Boca Ciega High-PN

Community

  • Community Name: 33707 - St Pete/South Pasadena/Gulfport/St Pete Bch
  • Association: Yes

Heating & Cooling

  • Cooling Type: Central Air
  • Heating Type: Central

Utilities

  • Sewer: Public Sewer
  • Water District: BAY HARBOR & INTRACOASTAL
  • Water: Public
  • Utility Description: Cable TV Available, Electricity Connected, Phone Available, Sewer Connected, Street Lights, Water Connected

Structural Information

  • Architectural Info: Contemporary, Elevated
  • Architectural Style: Contemporary, Elevated
  • Builder: Neo Homes
  • Approx Compl Date: 2027-04-01T04:00:00.000Z
  • Exterior Const.: Block, Wood Frame (FSC Certified)
  • Roof: Membrane
  • Stories/Levels: Two
  • Square Feet: 3,850
  • Sq. Ft. Source: Public Records
  • Year Built: 1958

Lot Features

  • Property View: Water
  • Lot Size (Acres): 0.19
  • Lot Size (Sq. Ft.): 8,459
  • Lot Size: 8459
  • Frontage: Street Paved
  • Street/Road Desc.: Paved, Asphalt

Water Features

  • Water Front: Yes
  • Water View: Yes
  • Water Extras: Yes
  • Water Front Name: BAY HARBOR & INTRACOASTAL
  • Water Front Desc.: Bay/Harbor, Intracoastal Waterway

Financial Considerations

  • Assoc Fee Desc.: Optional
  • Tax Amount: $13,393
  • Tax Year: 2025

Disclosures and Reports

  • Ownership: Fee Simple
  • Special Conditions: None
  • Legal Description: SOUTH CAUSEWAY ISLE 3RD ADD BLK 9, LOT 12
  • Flood Zone Info: AE
  • APN: 243115840420090120
  • Property ID: 243115840420090120
  • Block/Lot/Section: 9

Listed by Coastal Properties Group

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Listing agent

— 7821 3rd Ave S —

  • Coastal Properties Group

Get Pre-Approved Today

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with our affiliated lender
NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 7821 3rd Ave S

School District:Pinellas County School District
NameGradesDistance
Azalea Elementary School
1680 74th St N, St. Petersburg, FL 33710
PK-51.5 mi
Azalea Middle School
7855 22nd Ave N, St. Petersburg, FL 33710
6-81.8 mi
Boca Ciega High School
924 58th Street South, Gulfport, FL 33707
9-122.2 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 7821 3rd Ave S Get Price Alerts and Save Property

Date
Details
Price
Change
Source
2/17/2026
Listed
$3,600,000
355.12%
MLS
11/08/2024
Sold
$791,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 7821 3rd Ave S

Year
Property Taxes
Change
Tax Assessment
Change
2025
$13,393
185%
$672,350
138%
2024
$4,695
2%
$283,094
3%
2023
$4,614
2%
$274,849
7%
2021
$4,513
1%
$257,184
-3%
2022
$4,454
-1%
$264,900
4%
2021
$4,513
2%
$253,633
2%
2019
$4,431
1%
$247,931
2%
2018
$4,366
1%
$243,308
2%
2017
$4,321
1%
$238,304
2%
2016
$4,277
-1%
$233,403
1%
2015
$4,336
1%
$231,781
1%
2014
$4,312
1%
$229,941
1%
2013
$4,281
—
$226,543
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by Coastal Properties Group

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7821 3rd Avenue S, Saint Petersburg, FL 33707 (MLS# TB8476329) is a Single Family property with 4 bedrooms, 4 full bathrooms and 1 partial bathroom. 7821 3rd Avenue S is currently listed for $3,600,000 and was received on February 17, 2026. Want to learn more about 7821 3rd Avenue S? Do you have questions about finding other Single Family real estate for sale in Saint Petersburg? You can browse all Saint Petersburg real estate or contact a Coldwell Banker agent to request more information.

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