3516 21ST AVENUE S, St Petersburg, FL 33711

• 4 beds |
• 3 baths |
• 3,345 sqft

Property Description

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 Status:

Active

Date Added:

June 19, 2026

Data Last Updated:

June 25, 2026 at 2:23PM

Listing Office:

EXP REALTY LLC : 888-883-8509

Listing Agent:

Peter Bonanno : 603-496-0201

MLS ID:

TB8516916

Interior

• General: Built-in FeaturesCeiling Fans(s)Eat-in KitchenHigh CeilingsKitchen/Family Room ComboLiving Room/Dining Room ComboOpen FloorplanPrimary Bedroom Main FloorSolid Surface CountersSolid Wood CabinetsThermostatWalk-In Closet(s)Wet Bar
• Rooms: Den/Library/OfficeGreat RoomInside UtilityInterior In-Law Suite w/Private Entry
• Appliances: Bar FridgeBuilt-In OvenCooktopDishwasherDisposalExhaust FanMicrowaveRange HoodRefrigeratorTankless Water HeaterWine Refrigerator
• Laundry: Electric Dryer HookupLaundry RoomWasher Hookup
• Flooring: Luxury VinylTile
• A/C: Central Air
• Heating: CentralElectric

Exterior

• General: BalconyCourtyardLightingPrivate EntrancePrivate MailboxPrivate YardSliding Doors
• Style: ContemporaryCustom
• Other Structures: Additional Single Family HomeGuest House
• Parking: Alley AccessAssignedDrivewayGarage Door OpenerGarage Faces RearGround LevelGuestOversizedRV Access/Parking

Construction

• Roofing: Shingle
• Windows: ENERGY STAR Qualified WindowsInsulated WindowsStorm Window(s)
• General: BlockHardiPlank TypeStuccoTwoSlab

Location

• Road/Access: AsphaltPaved
• Originating MLS: Stellar MLS
• County: Pinellas

Lot

• Zoning: CHILDS PARK BLK 6LOT 327-31-16-15408-006-0030
• View: City
• Fencing: MasonryVinyl

Utilities

• Utilities: BB/HS Internet AvailableCable AvailableElectricity ConnectedPublicSewer ConnectedWater Connected
• Water: Public
• Sewer: Public Sewer

Financial

• Source: Stellar MLS
• Ownership: Fee Simple