3516 21ST AVENUE S, ST PETERSBURG, FL 33711

Description of 3516 21ST AVENUE S, ST 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.

Property Details for 3516 21ST AVENUE S, ST PETERSBURG, FL 33711

Bathrooms Full

2

Bathrooms Half

1

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

Appliances

Bar Fridge, Built-In Oven, Cooktop, Dishwasher, Disposal, Exhaust Fan, Microwave, Range Hood, Refrigerator, Tankless Water Heater, Wine Refrigerator

Flooring

Luxury Vinyl, Tile

Heating

Central, Electric

Cooling

Central Air

Furnished

Unfurnished

Architectural Style

Contemporary, Custom

Garage Spaces

3

Attached Garage

No

Parking Features

Alley Access, Assigned, Driveway, Garage Door Opener, Garage Faces Rear, Ground Level, Guest, Oversized, RV Parking

Pool Private

No

Property Condition

Completed

Direction Faces

North

Building Information for 3516 21ST AVENUE S, ST PETERSBURG, FL 33711

Building Area Total

3730

Building Area Units

Square Feet

Association

No

Security Features

Security Gate

Property Information for 3516 21ST AVENUE S, ST PETERSBURG, FL 33711

Lot Features

Cleared, City Lot, Landscaped, Level, Oversized Lot, Private, Sidewalk

Lot Size Square Feet

13,321

Waterfront

No

View

City

Construction Materials

Block, HardiPlank Type, Stucco

Roof

Shingle

Exterior Features

Balcony, Courtyard, Irrigation System, Lighting, Private Entrance, Private Mailbox, Private Yard, Sliding Doors

Sewer

Public Sewer

Water Source

Public

New Construction

Yes

Public Records for 3516 21ST AVENUE S, ST PETERSBURG, FL 33711

Parcel Number

273116154080060030

Tax Annual Amount

$1,959

Tax Year

2025

Tax Legal Description

CHILDS PARK BLK 6, LOT 3

County Or Parish

Pinellas

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