519 ROUNTREE DRIVE, Longboat Key, FL, 34228 | $6,488,000

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.

Features

  • Elevator: Y
  • Rooms: 12
  • Bedrooms: 4
  • Baths: 4 full / 1 half
  • Lot Size: 125 x 194
  • Laundry: Laundry Room, Other, Upper Level
  • Style: Contemporary, Custom
  • Year Built: 2025
  • Garage: 2-car Driveway, Garage Door Opener, Ground Level
  • Heating: Heat Pump, Zoned
  • Cooling: Central Air
  • Approx Sq. Feet: 3,554
  • Acreage: 0.22
  • Lot Size: 125 x 194
  • Est. Taxes: $9,330
  • HOA Fee: $3,000 Annually
  • Lot Desc: Corner Lot, City Lot, In County, Irregular Lot, Landscaped, Oversized Lot
  • View: Water
  • Pool: Deck, Fiber Optic Lighting, Gunite, Heated, In Ground, Lighting, Pool Alarm, Salt Water
  • Pet Policy: Yes
  • Appliances: Bar Fridge, Dishwasher, Disposal, Dryer, Gas Water Heater, Ice Maker, Indoor Grill, Kitchen Reverse Osmosis System, Microwave, Other, Range, Range Hood, Refrigerator, Tankless Water Heater, Touchless Faucet, Washer, Wine Refrigerator
  • MLS#: A4674266
  • Days on Market: 84 days
  • Website: https://www.raveis.com
    /eprop/A4674266/519rountreedrive_longboatkey_fl?source=qrflyer
This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site comes in part from the IDX Program of MFRMLS (My Florida Regional MLS DBA Stellar MLS). The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. (last updated 3/11/2026 1:33:31 AM)
Listing courtesy of IRVING GROUP INC   Phone: 305-900-2100

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Melissa CohnRVP, Mortgage Banker, William Raveis Mortgage, LLC

NMLS Mortgage Loan Originator ID 16953

917.838.7300

Melissa.Cohn@raveis.com

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519 ROUNTREE DRIVE, Longboat Key, FL, 34228

$6,488,000

Customer Service

William Raveis Real Estate

Phone: 888.699.8876

Contact@raveis.com

Melissa Cohn

RVP, Mortgage Banker

William Raveis Mortgage, LLC

Phone: 917.838.7300

Melissa.Cohn@raveis.com

NMLS Mortgage Loan Originator ID 16953

5/6 (30 Yr)
Adjustable Rate Jumbo*
30 Year
Fixed-Rate Jumbo
15 Year
Fixed-Rate Jumbo
Loan Amount $5,190,400 $5,190,400 $5,190,400
Term 360 months 360 months 180 months
Initial Interest Rate** 5.500% 5.875% 5.750%
Interest Rate based on Index + Margin 8.125%
Annual Percentage Rate 6.154% 6.031% 5.991%
Monthly Tax Payment $778 $778 $778
H/O Insurance Payment $125 $125 $125
Initial Principal & Interest Pmt $29,471 $30,703 $43,102
Total Monthly Payment $30,374 $31,606 $44,005

* The Initial Interest Rate and Initial Principal & Interest Payment are fixed for the first and adjust every six months thereafter for the remainder of the loan term. The Interest Rate and annual percentage rate may increase after consummation. The Index for this product is the SOFR. The margin for this adjustable rate mortgage may vary with your unique credit history, and terms of your loan.

** Mortgage Rates are subject to change, loan amount and product restrictions and may not be available for your specific transaction at commitment or closing. Rates, and the margin for adjustable rate mortgages [if applicable], are subject to change without prior notice.

The rates and Annual Percentage Rate (APR) cited above may be only samples for the purpose of calculating payments and are based upon the following assumptions: minimum credit score of 740, 20% down payment (e.g. $20,000 down on a $100,000 purchase price), $1,950 in finance charges, and 30 days prepaid interest, 1 point, 30 day rate lock. The rates and APR will vary depending upon your unique credit history and the terms of your loan, e.g. the actual down payment percentages, points and fees for your transaction. Property taxes and homeowner's insurance are estimates and subject to change.  The Total Monthly Payment does not include the estimated HOA/Common Charge payment.