$1,250,000
3516 21st Avenue S Saint Petersburg, FL 33711
For Sale MLS# TB8516916
4 beds 3 baths 3,345 sq ft Single Family
Details for 3516 21st Avenue S
MLS# TB8516916
Description for 3516 21st Avenue S, Saint Petersburg, FL, 33711
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.
Listing Information
Property Type: Residential, Single Family Residence
Status: Active
Bedrooms: 4
Bathrooms: 3
Lot Size: 0.31 Acres
Square Feet: 3,345 sq ft
Year Built: 2026
Garage: Yes
Stories: 2 Story
Construction: Block,HardiPlank Type,Stucco
Construction Display: New Construction
Subdivision: Childs Park
Builder: McDew Development
Foundation: Slab
County: Pinellas
Construction Status: New Construction
Room Information
Main Floor
Living Room: 11x23
Dining Room: 14x23
Kitchen: 14x23
Primary Bathroom: 12x10
Primary Bedroom: 20x14
Porch: 13x12
Bathroom 1: 6x6
Laundry: 12x6
Office: 10x13
Upper Floor
Great Room: 24x25
Bedroom 3: 9x6
Bedroom 4: 13x16
Bedroom 3: 13x12
Bedroom 2: 12x11
Bathrooms
Full Baths: 2
1/2 Baths: 1
Additonal Room Information
Laundry: Laundry Room, Washer Hookup, Electric Dryer Hookup
Interior Features
Appliances: Wine Refrigerator, Bar Fridge, Exhaust Fan, Microwave, Refrigerator, Cooktop, Dishwasher, Disposal, Range Hood, Tankless Water Heater, Built-In Oven
Flooring: Luxury Vinyl,Tile
Doors/Windows: Insulated Windows, ENERGY STAR Qualified Windows, Storm Window(s)
Additional Interior Features: Ceiling Fan(s), Wet Bar, Eat-In Kitchen, High Ceilings, Living/Dining Room, Wood Cabinets, Main Level Primary, Solid Surface Counters, Open Floorplan, Kitchen/Family Room Combo, Walk-In Closet(s), Built-in Features
Utilities
Water: Public
Sewer: Public Sewer
Other Utilities: Cable Available,Electricity Connected,High Speed Internet Available,Municipal Utilities,Sewer Connected,Water Connected
Cooling: Central Air, Ceiling Fan(s)
Heating: Electric, Central
Exterior / Lot Features
Garage Spaces: 3
Parking Description: Alley Access, driveway, Garage Faces Rear, Oversized, RV Access/Parking, Guest, Garage, Assigned, Garage Door Opener
Roof: Shingle
Lot View: City
Lot Dimensions: 71x187
Fencing: Vinyl, Masonry
Additional Exterior/Lot Features: Sprinkler/Irrigation, Courtyard, Private Yard, Private Entrance, Lighting, Balcony, Balcony, Flat, Level, Landscaped, Cleared, City Lot, Oversized Lot, Private
Out Buildings: Second Residence, Guest House
Community Features
Community Features: Sidewalks
Security Features: Secured Garage/Parking, Security Gate
Driving Directions
Hwy 275 to 22nd Ave S, Right on 35th St S, Left on 21st Ave S.
Financial Considerations
Terms: Cash,Conventional
Tax/Property ID: 27-31-16-15408-006-0030
Tax Amount: 1958.62
Tax Year: 2025
A broker reciprocity listing courtesy: EXP REALTY LLC
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Interest rate and annual percentage rate (APR) are based on current market conditions, are for informational purposes only, are subject to change without notice and may be subject to pricing add-ons related to property type, loan amount, loan-to-value, credit score and other variables. Estimated closing costs used in the APR calculation are assumed to be paid by the borrower at closing. If the closing costs are financed, the loan, APR and payment amounts will be higher. If the down payment is less than 20%, mortgage insurance may be required and could increase the monthly payment and APR. Contact us for details. Additional loan programs may be available. Accuracy is not guaranteed, and all products may not be available in all borrower's geographical areas and are based on their individual situation. This is not a credit decision or a commitment to lend.
Sales History & Tax Summary for 3516 21st Avenue S
Sales History
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Tax Summary
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Schools
Schools nearby 3516 21st Avenue S
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The schools shown represent both the assigned schools and schools by distance based on local school and district attendance boundaries. Attendance boundaries change based on various factors and proximity does not guarantee enrollment eligibility. Please consult your real estate agent and/or the school district to confirm the schools this property is zoned to attend. Information is deemed reliable but not guaranteed.
SchoolDigger ® Rating
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