Under contract-accepting backup offers. NEW 2026 BUILD! Welcome home to this luxury estate featuring 4 bedrooms plus an office, 2.5 baths, and a detached 2-bedroom, 1-bath guest house, all situated on an expansive third-of-an-acre lot designed to provide privacy between both residences. Built by McDew Development, this unique property offers luxury living, exceptional flexibility, and income-producing potential in one of St. Petersburg’s fastest-growing areas. The striking modern exterior showcases custom white stucco, dark architectural accents, and black impact-rated windows and doors. A welcoming front porch leads to an open-concept interior featuring soaring ceilings, luxury vinyl plank flooring, wide baseboards, recessed lighting, and designer finishes throughout. Expansive sliders open to a private, fully fenced backyard with ample room for a resort-style pool. At the heart of the home, the chef’s kitchen features a waterfall island, floor-to-ceiling two-tone wood cabinetry, quartz countertops, built-in cooktop, wall oven, wall microwave, counter-depth refrigerator, and a spacious walk-in pantry with additional storage and prep space. The first-floor primary suite offers custom walk-in closets and a spa-inspired bath with a soaking tub, oversized shower, floating double vanity, and private water closet. A dedicated office completes the main level. Upstairs, three additional bedrooms surround a spacious loft-style great room with a wet bar, ideal for entertaining or relaxing. Adding tremendous value is the detached 800 SF ADU, complete with 2 bedrooms, 1 bath, a full kitchen, living area, laundry, and private balcony. Whether used for rental income, multigenerational living, or extended guests, this fully self-contained residence provides versatility rarely found in new construction. The property is completed by an oversized 3-car garage with alley access and is conveniently located minutes from Downtown St. Petersburg, the St. Pete Pier, Gulfport, Tropicana Field, and I-275. Situated outside a flood zone and custom built in 2026, this is a rare opportunity to own a private modern luxury retreat with both lifestyle and investment appeal.
Property Details
Price:
$1,250,000
MLS #:
TB8516916
Status:
Active Under Contract
Beds:
4
Baths:
2.5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
CHILDS PARK
Neighborhood:
33711stpetegulfport
Listed Date:
Jun 19, 2026
Finished Sq Ft:
3,345
Total Sq Ft:
3,730
Lot Size:
13,321 sqft / 0.31 acres (approx)
Year Built:
2026
See this Listing
Schools
Interior
Appliances
Bar Fridge, Built-In Oven, Cooktop, Dishwasher, Disposal, Exhaust Fan, Microwave, Range Hood, Refrigerator, Tankless Water Heater, Wine Refrigerator
Bathrooms
2 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Flooring
Luxury Vinyl, Tile
Heating
Central, Electric
Interior Features
Built-in Features, Ceiling Fan(s), Eating Space In Kitchen, High Ceilings, Kitchen/Family Room Combo, Living Room/Dining Room Combo, Open Floorplan, Primary Bedroom Main Floor, Solid Surface Counters, Solid Wood Cabinets, Thermostat, Walk-In Closet(s), Wet Bar
Laundry Features
Electric Dryer Hookup, Laundry Room, Washer Hookup
Levels
Two
Exterior
Architectural Style
Contemporary, Custom
Construction Materials
Block, HardiPlank Type, Stucco
Covered Spaces
9
Direction Faces
North
Exterior Features
Balcony, Courtyard, Irrigation System, Lighting, Private Entrance, Private Mailbox, Private Yard, Sliding Doors
Fencing
Masonry, Vinyl
Garage Spaces
3
Lot Features
Cleared, City Lot, Landscaped, Level, Oversized Lot, Private, Sidewalk
New Construction YN
1
Open Parking YN
1
Other Structures
Additional Single Family Home, Guest House
Parking Features
Alley Access, Assigned, Driveway, Garage Door Opener, Garage Faces Rear, Ground Level, Guest, Oversized, RV Parking
Roof
Shingle
Security Features
Security Gate
View
City
Window Features
ENERGY STAR Qualified Windows, Insulated Windows, Storm Window(s)
Financial
Tax Year
2025
Taxes
$1,959
Map
Community
- Address3516 21ST AVENUE S ST PETERSBURG FL
- SubdivisionCHILDS PARK
- CityST PETERSBURG
- CountyPinellas
- Zip Code33711
Subdivisions in ST PETERSBURG
Market Summary
Current real estate data for Single Family in ST PETERSBURG as of Aug 29, 2026
1,548
Single Family Listed
108
Avg DOM
388
Avg $ / SqFt
$780,921
Avg List Price
Property Summary
- Located in the CHILDS PARK subdivision, 3516 21ST AVENUE S ST PETERSBURG FL is a Single Family for sale in ST PETERSBURG, FL, 33711. It is listed for $1,250,000 and features 4 beds, 3 baths, and has approximately 3,345 square feet of living space, and was originally constructed in 2026. The current price per square foot is $374. The average price per square foot for Single Family listings in ST PETERSBURG is $388. The average listing price for Single Family in ST PETERSBURG is $780,921. To schedule a showing of MLS#tb8516916 at 3516 21ST AVENUE S in ST PETERSBURG, FL, contact your InvestPro Properties, Inc. agent at 561-203-7022.
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Courtesy of EXP REALTY LLC. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the Orlando/Tampa – FL. Detailed information about real estate listings held by brokerage firms other than InvestPro Properties, Inc. include the name of the listing broker. Neither the listing company nor InvestPro Properties, Inc. shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. Orlando/Tampa – FL. All rights reserved. 3516 21ST AVENUE S
ST PETERSBURG, FL
