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$1,250,000
133 Days On Site

3516 21ST AVENUE S
ST PETERSBURG, FL 33711

For Sale|Single Family Residence|Active Under Contract
4
Beds
3
Total Baths
2
Full Baths
1
Partial Bath
3,345
SqFt
$374
/SqFt
2026
Built
Subdivision:
CHILDS PARK
County:
Pinellas
Call Now: 727.409.9696
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727.409.9696
3516 21ST AVENUE S3516 21ST AVENUE S3516 21ST AVENUE S3516 21ST AVENUE S
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Under contract-accepting backup offers. 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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Listing Snapshot
Price 
$1,250,000
Days On Site 
133 Days
Bedrooms 
4
Inside Area (SqFt) 
3,345 sqft
Total Baths 
3
Full Baths 
2
Partial Baths 
1
Lot Size 
0.31 Acres
Year Built 
2026
MLS Number 
TB8516916
Status 
Active Under Contract
Property Tax 
$1,958.62
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Builder
Friends & Family
Recent Activity
5 days agoListing updated with changes from the MLS
2 months agoStatus changed to Active Under Contract
4 months agoListing first seen on site
General Features
Acres 
0.31
Carport 
6
Direction Faces 
North
Foundation 
Slab
Garage 
Yes
Garage Spaces 
3
Home Warranty 
Yes
Levels 
Two
Parking 
Alley AccessAssignedDrivewayGarage Door OpenerGarage Faces RearGuestOversizedRV Access/Parking
Property Condition 
New Construction
Property Sub Type 
Single Family Residence
Security 
Secured Garage/ParkingSecurity Gate
Sewer 
Public Sewer
SqFt Total 
3730
Style 
ContemporaryCustom
Utilities 
Cable AvailableElectricity ConnectedSewer ConnectedWater Connected
Water Source 
Public
Interior Features
Appliances 
Bar FridgeCooktopDishwasherDisposalExhaust FanMicrowaveRange HoodRefrigeratorTankless Water HeaterWine Refrigerator
Cooling 
Central Air
Flooring 
Tile
Furnished 
Unfurnished
Heating 
CentralElectric
Interior 
Built-in FeaturesEat-in KitchenHigh CeilingsOpen FloorplanWalk-In Closet(s)Wet BarIn-Law Floorplan
Laundry Features 
Electric Dryer HookupLaundry RoomWasher Hookup
Window Features 
ENERGY STAR Qualified WindowsInsulated WindowsStorm Window(s)
Balcony/Porch/Lanai 
Dimensions - 12x13Level - First
Bathroom 1 
Dimensions - 6x6Level - FirstFeatures - Stone Counters
Bedroom 2 
Dimensions - 11x12Level - SecondFeatures - Ceiling Fan(s)
Bedroom 3 
Dimensions - 12x13Level - SecondFeatures - Ceiling Fan(s)
Bedroom 4 
Dimensions - 16x13Level - SecondFeatures - Ceiling Fan(s)
Dining Room 
Dimensions - 23x14Level - First
Great Room 
Dimensions - 25x24Level - SecondFeatures - Ceiling Fan(s), Wet Bar
Kitchen 
Dimensions - 23x14Level - FirstFeatures - Bar, Breakfast Bar, Kitchen Island, Stone Counters
Laundry 
Dimensions - 6x12Level - First
Living Room 
Dimensions - 23x11Level - First
Master Bathroom 
Dimensions - 10x12Level - FirstFeatures - Double Vanity, Stone Counters
Master Bedroom 
Dimensions - 14x20Level - FirstFeatures - Ceiling Fan(s)
Office 
Dimensions - 13x10Level - FirstFeatures - Ceiling Fan(s)
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Exterior Features
Construction Details 
BlockHardiPlank TypeStucco
Exterior 
BalconyCourtyardLightingPrivate EntrancePrivate Yard
Fencing 
MasonryVinyl
Lot Features 
ClearedLandscapedLevelPrivatePaved
Other Structures 
Guest House
Roof 
Shingle
View 
City
Waterview 
City
Windows/Doors 
ENERGY STAR Qualified WindowsInsulated WindowsStorm Window(s)
Community Features
MLS Area 
33711 - St Pete/Gulfport
Township 
31
Financing Terms Available 
CashConventional
Roads 
AsphaltPaved
Listing courtesy of EXP REALTY LLC (603) 496-0201



Listing information is provided by Participants of the Stellar MLS. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Properties displayed may be listed or sold by various participants in the MLS Copyright 2026, Stellar MLS.
Last checked: 2026-10-21 04:44 AM EDT

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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