5.5 acres - rarely available acreage on highly desirable Longboat Key. - 6664 & 6660 & 6670 GULF OF MEXICO DR, LONGBOAT KEY
Caretaker house or tear down and build the home of your dreams. - 6664 & 6660 & 6670 GULF OF MEXICO DR, LONGBOAT KEY
Single Family Residence at 6664 & 6660 & 6670 GULF OF MEXICO DR, LONGBOAT KEY, photo 3 of 23
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$18,500,000

6664 & 6660 & 6670 GULF OF MEXICO DR
LONGBOAT KEY, FL 34228
Listed by MICHAEL SAUNDERS & COMPANY
Bedrooms
2
Bathrooms
2
Living area
10,298 sqft
Year built
1955

About this home

This house is a part of a 5.5 Property and will be sold together as one parcel. The house can be used as a guest house, caretaker home or removed for development.

Highlights

Waterfront

Property details

MLS #
MFRA4694502
Property type
Single Family Residence
Subdivision
ROBERT LENNOX
Status
Active
Days on market
19
On market date
May 21, 2026
Stories
N/A
Total bathrooms
2
Garage spaces
2
Parking spaces
N/A
Lot size
5.5 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card (e.g. NC Dept. of Public Instruction, SC Report Card).

Elementary
SEA BREEZE ELEMENTARY SCHOOL
4.04 mi away · Grades -1-5
Nearest school -- attendance-zone data not available here
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
533
Student:teacher ratio
14.4:1
District
MANATEE
Middle
W. D. SUGG MIDDLE SCHOOL
4.58 mi away · Grades 6-8
Nearest school -- attendance-zone data not available here
3.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
1,016
Student:teacher ratio
17.2:1
District
MANATEE
High
BAYSHORE HIGH SCHOOL
5.35 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
2.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
1,385
Student:teacher ratio
19.2:1
District
MANATEE

Walkability

Blended score for LONGBOAT KEY's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

45
Somewhat walkable
out of 100
EPA National Walkability Index
10.2 / 20 -- Below average walkable
Google Places amenity density
35 / 100
Restaurants & cafes6
Grocery stores0
Parks4
Schools1
Transit stops0
Pharmacies0

Mortgage calculator

Estimate only - actual rate and payment depend on your lender, credit, and loan program.

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Adjust tax / insurance estimates
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Est. monthly payment
$111,559/mo
$3,700,000 down
$14,800,000 loan
Principal & interest$95,993
Property tax (est.)$15,417
Home insurance (est.)$150

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Data source: Listing information provided by Stellar MLS (mfrmls) via Trestle/CoreLogic. Last updated June 9, 2026.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.