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Property for sale at 3516 21ST AVENUE S, ST PETERSBURG, FL, 33711

3516 21st Avenue SSt Petersburg, FL, 33711

4beds
3baths
3,345sqft
Single Family Residence
Built in 2026
$1,200,000
Sold
Price per sqft
$359
Sold on
Oct 22, 2026
MLS #TB8516916Updated Oct 22, 2026

About this property

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.

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Property details

Property type
Single Family Residence
Street address
3516 21st Avenue S
City
St Petersburg
State
FL
ZIP code
33711
Year built
2026
New construction
Yes
Faces
North
Rooms
14
Living area
3,345 sqft
Total building area
3,730 sqft
Architectural style
Contemporary
Levels
Two

Stellar MLSThe data relating to real estate displayed on this website comes in part from the Internet Data Exchange (IDX) Program of Stellar MLS. All listing information is deemed reliable but not guaranteed and should be independently verified through personal inspection by appropriate professionals. Listings displayed on this website may be subject to prior sale or removal from sale; the availability of any listing should always be independently verified. Listing information is provided for consumers' personal, non-commercial use, solely to identify potential properties for potential purchase; all other use is strictly prohibited and may violate relevant federal and state law.Stellar (MFR) data last updated at November 8, 2026 at 2:15 AM EST

Price & sale history

EventPrice
SoldMLS #TB8516916$1,200,000
Listed for saleMLS #TB8516916$1,250,000
SoldMLS #O6056899$164,999
Price reducedMLS #O6056899$164,999Change: −7.8%−$14,001
History may be incomplete.
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Property for sale at 3516 21ST AVENUE S, ST PETERSBURG, FL, 33711
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