3516 21ST AVENUE S ST PETERSBURG FL 33711 MLS #TB8516916

3516 21ST AVENUE S
ST PETERSBURG, FL, 33711
$1,250,000
4 Beds
2.5 Baths
3,345 SqFt
0.31 Acres
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MLS #TB8516916 image #0
Open House Jul 11, 2026
12:00 – 02:00
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
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
Primary Bedroom Main FloorNewconstruction33711 – St Pete/gulfport33711stpetegulfportChilds ParkCityCheck With City Of St Pete.3 Months

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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

Subdivisions in ST PETERSBURG

Market Summary

Current real estate data for Single Family in ST PETERSBURG as of Jul 09, 2026
1,636
Single Family Listed
106
Avg DOM
397
Avg $ / SqFt
$817,028
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 $397. The average listing price for Single Family in ST PETERSBURG is $817,028.

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3516 21ST AVENUE S
ST PETERSBURG, FL