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About This Home

This 4-bedroom, 5-bathroom single family at 519 ROUNTREE DRIVE in Longboat Key, FL is listed for $6,488,000 ($1,826 per sqft). Built in 2025, the home offers 3,554 sqft of living space on a 0.22 acres lot.

Agent Description

BUILT TO LAST. 519 Rountree is new construction built entirely of concrete block (CBS) across every level—unlike many barrier island homes that transition to wood-frame construction above the flood elevation. The residence has already experienced recent hurricanes without damage.

NEW CONSTRUCTION. 519 ROUNTREE is a privately positioned coastal residence offering over 6,400 square feet of indoor and outdoor living, including approximately 5,200 square feet under roof and a 1,100 square foot elevator-accessible rooftop terrace, located within Longboat Key Estates.

GULF LIVING EXPERIENCE. At 519 Rountree, days begin with morning air carrying the salt-kissed character of the Gulf and conclude with glowing sunsets that define the Florida coastline. This is not simply proximity to the beach — it is immersion in it.

Positioned just moments from the sand, the home offers balcony and rooftop experiences designed for sunset entertaining, open-air dining, and the effortless rhythm of Gulf living from morning through evening. WATERFRONT LIVING. A waterside deck is currently in process, transforming the canal setting into a true extension of the home’s outdoor living experience, subject to permitting.

Flexibility remains for a variety of dock and lift configurations, tailored to buyer preference. DESIGN AND EXECUTION. The newly constructed residence has withstood three recent hurricanes without damage, a testament to its quality, elevation, and thoughtful execution.

Each level is purposeful in both design and function, delivering a vertical lifestyle that feels intuitive, private, and refined. FURNISHINGS. For buyers seeking the residence exactly as photographed, the complete furnishings and curated design package may be acquired separately. FINAL NOTE. 519 Rountree delivers the atmosphere buyers seek when they say they want Gulf living — quietly, privately, and without excess.

Key Features

  • Built in 2025
  • 0.22 acre lot
  • Private pool
  • Fireplace
  • Waterfront

Property Details

4 full, 1 half
2025

Amenities

PoolFireplaceWaterfront

Monthly Cost Estimate

$34,699/mo

20% down · 6.5% · 30 years

Principal$4,692
Interest$28,115
Insurance$1,892

Estimates only. Actual payments may vary.

Location

519 ROUNTREE DRIVE

Longboat Key, FL 34228

LONGBOAT KEY ESTATES

Features & Amenities

Interior Features

Built-in FeaturesCeiling Fans(s)ElevatorKitchen/Family Room ComboOpen FloorplanSmart HomeSolid Surface CountersThermostatWalk-in Closet(s)Wet Bar

Exterior Features

Corner LotPavedFencingBalconyLightingOutdoor KitchenSliding DoorsPool

Property Details

Flooring

Tile

Construction

Block

Parking

DrivewayGarageGarage - Attached

Heating

Fireplace(s)Heat Pump (Heating)Zoned (Heating)

Cooling

Central Air

Appliances

Barbeque or GrillDishwasherDryerGarbage DisposerIce MakerMicrowaveRangeRefrigeratorRefrigerator - Wine StorageWasher

Questions & Answers

This 4-bedroom, 5-bathroom single family at 519 ROUNTREE DRIVE is listed at $6,488,000 ($1,826/sqft). The estimated monthly payment is $28,115 based on 20% down at 6.5% interest.

Key features include: Built in 2025, 0.22 acre lot, Private pool, Fireplace, Waterfront. Interior Features: Built-in Features, Ceiling Fans(s), Elevator. Exterior Features: Corner Lot, Paved, Fencing.

This property is listed by Colby Lengel and can be reached at 9417796227 or colby.lengel@compass.com.

CL

Colby Lengel

Agent at COMPASS FLORIDA LLC

(941) 779-6227

Listed by COMPASS FLORIDA LLC · View on Broker Site

MLS# A4690210· Source: listhub· Updated 47 days ago

Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

519 ROUNTREE DRIVE, Longboat Key, FL 34228

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