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3516 21ST AVENUE S

House For Sale
$1,250,000

BTC: 19.47355655

ETH: 709.04284888

13 days
4 bds
2 ba
3,345 sqft

Overview

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.

Location

Details

Type:
Residential
Parking:
Alley Access / Assigned / Driveway / Garage Door Opener / Garage Faces Rear / Ground Level / Guest / Oversized / RV Parking
Year Built:
2026
Lot:
0.31 Acres
Heating:
Central / Electric
Price/sqft:
$374
Cooling:
Central Air
HOA:
No Data

Valuation

Our model vs. what's actually selling nearby.
Estimate
$950,000
$937K – $2.0M
Confidence Low
List vs. estimate
$300K above estimate
List $1,250,000 · +31.6%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$373
+7.3% vs. city median $348
Based on
5 MLS comparables
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$1,958
2025
View
City
Garage
3 car garage
All facts and features
  • Flooring

    • Luxury Vinyl

    • Tile

    Heating

    • Central

    • Electric

    Cooling

    • Central Air

    Appliances

    • Bar Fridge

    • Built-In Oven

    • Cooktop

    • Dishwasher

    • Disposal

    • Exhaust Fan

    • Microwave

    • Range Hood

    • Refrigerator

    • Tankless Water Heater

    • Wine Refrigerator

    Other 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

    Bedrooms and bathrooms

    • Bedrooms: 4

    • Bathrooms: 1

    • Full bathrooms: 2

  • Parking

    • Alley Access

    • Assigned

    • Driveway

    • Garage Door Opener

    • Garage Faces Rear

    • Ground Level

    • Guest

    • Oversized

    • RV Parking

    Property

    • Levels: Two

    • Exterior Features: Balcony / Courtyard / Irrigation System / Lighting / Private Entrance / Private Mailbox / Private Yard / Sliding Doors

    Lot

    • Lot: 0.31 Acres

    Other Property Information

    • Parcel Number: 273116154080060030

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Utility

    • BB/HS Internet Available

    • Cable Available

    • Electricity Connected

    • Public

    • Sewer Connected

    • Water Connected

  • Other financial information

    • Annual tax amount: $1,959

  • Source details

    • MLS ID: TB8516916

    Other facts

    • Construction Materials: Block / HardiPlank Type / Stucco

    • Foundation Details: Slab

    • Laundry Features: Electric Dryer Hookup / Laundry Room / Washer Hookup

    • Lot Features: Cleared / City Lot / Landscaped / Level / Oversized Lot / Private / Sidewalk

    • Window Features: ENERGY STAR Qualified Windows / Insulated Windows / Storm Window(s)

    • Direction Faces: North

    • Other Structures: Additional Single Family Home / Guest House

    • Architectural Style: Contemporary / Custom

    • Garage Spaces: 3

    • Garage: Yes

    • Living Area: 3345

    • Water Source: Public

    • Lot Size Dimensions: 71 x 187

    • Subdivision Name: CHILDS PARK

Private inquiry
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The multiple listing information is provided by the Stellar MLS from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Stellar MLS. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: EXP REALTY LLC