WORLDBID AUCTION-Bids are due no later than Noon ET on August 5th, 2025. Buyer's may obtain financing, though financing is not a contingency to close. You may conduct your inspections anytime. Escape to refined island living in this exceptional Mediterranean estate, perfectly positioned on 1.5 lots in prestigious Key Colony Beach. With 122 feet of wide canal frontage and a full-length concrete dock, this furnished residence is a rare offering for the discerning buyer seeking both elegance and boating functionality. Every detail of this home speaks to high-end craftsmanship. Soaring 20-foot ceilings and walls of glass capture sweeping canal views, while natural light pours into the expansive living space. The chef's kitchen is fitted with a Wolfe gas range, Sub-Zero refrigeration, and premium appliances—ideal for both intimate meals and elevated entertaining. Indoor spaces transition seamlessly to outdoor living, where a saltwater infinity-edge pool, spa, and summer kitchen set the stage for unforgettable tropical gatherings. Two lavish primary suites—one on each floor—provide unmatched privacy and comfort. The main suite spans the depth of the home with balconies at both ends, dual walk-in closets, and a spa-inspired bath featuring a soaking tub, glass shower, and private bidet room. Two additional guest bedrooms with balconies, a media room with theater seating, and a rooftop terrace offering 360-degree views further enhance this home's luxurious appeal. An elevator connects all levels, including the 1,000 sq ft lower-level man cave. Boaters will appreciate two lifts (15k & 20k), underwater lighting, and a fish cleaning station. Additional features include a 50KW generator, smart lighting, whole-home WiFi, dual freezers, an ice machine, and a fully irrigated landscape. Zoned for weekly rentals, this residence offers strong income potential without compromising lifestyle. Whether for private enjoyment or as a luxury investment, this is island living!
Single-familyProperty Type
2006Year Built
0.31 acresLot Size
$808Est. Price/Sq.Ft.
4 spacesParking
Listed by Dawn McComish• Lokation Real Estate
Bought with Lorie LaLonde-Miller• American Caribbean Real Estate, Christie's International Real Estate
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Refinance
$0
Est. cash available
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Rent
$4,613/mo
Redfin rental estimate
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Market trends in Key Colony Beach, FL
Last updated September 2026
Buyer's Market
Seller's Market
Buyer's market
Sale-to-list price
94.1%
1.2% MoM
Median sale price
$1.3M
$516K MoM
Avg. days on market
203d
1 days MoM
Recently sold homes
17
1 MoM
Provided by Redfin
Sale history for 150 12Th St
Date
Event
Price
FLKMLS #612880
Jul 14, 2025
Sold
$3,610,000
$648/sq ft
Jun 10, 2025
Price Changed
$3,600,000
$647/sq ft
Apr 22, 2025
Price Changed
$4,300,000
$772/sq ft
Dec 29, 2024
Listed
$4,799,000
$862/sq ft
FLKMLS #603854
May 8, 2024
Listing Removed
—
Oct 13, 2023
Price Changed
$4,999,000
$898/sq ft
Jun 22, 2023
Price Changed
$5,390,000
$968/sq ft
May 25, 2023
Price Changed
$5,490,000
$986/sq ft
May 22, 2023
Price Changed
$5,499,000
$988/sq ft
May 13, 2023
Price Changed
$5,949,000
$1,069/sq ft
Mar 15, 2023
Price Changed
$5,999,000
$1,078/sq ft
Jan 20, 2023
Listed
$6,499,000
$1,167/sq ft
FLKMLS #588296
Sep 30, 2020
Sold
$3,150,000
$566/sq ft
Nov 15, 2019
Listed
$3,500,000
$629/sq ft
+76
Dreams do come true on Key Colony Bch an exceptionally designed estate home. Welcomed with a mesmerizing 2 story foyer into grand living room w/ massive floor-ceiling windows offering delightful canal views. Thoughtfully crafted sleek kitchen w/ Wolf gas range, Sub Zero & KitchenAid appliances, formal dining rm, 5 bedrooms & 2 are amazing master suites. Anglers & boaters will cherish memories you & your family will make w/ 120 ft concrete dock w/ boat lifts accommodate yacht, jet skis & skiffs. Ideally located 10 mins to open ocean/gulf. Lush landscaping for privacy. Relax & entertain by beach entry pool & spa. Garage for 4+ vehicles, outdoor kitchen, theater rm, elevator, whole hs generator & game rm. No detail has been overlooked. .. your tropical paradise is here! 1031 sf finished lower leve
FLKMLS #582887
Nov 16, 2019
Listing Removed
—
Nov 20, 2018
Listed
$3,699,000
$664/sq ft
MARMLS #A10766421
Nov 20, 2019
Listing Removed
—
Nov 20, 2018
Listed
$3,699,000
$664/sq ft
Public Records
Aug 7, 2002
Sold
$542,500
$97/sq ft
FLKMLS #509868
May 24, 2002
Sold
$542,500
$97/sq ft
Jan 12, 2002
Listed
$585,000
$105/sq ft
Public Records
Dec 31, 1998
Sold
$108,400
$19/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$35,658 (+14.6%)
$1,191,729 + $2,611,718
$3,803,447
2024
$31,124 (+1.9%)
2023
$30,554 (+4.3%)
2022
$29,282 (+7.7%)
$788,288 + $2,268,825
$3,057,113
2021
$27,188 (+14.2%)
$565,950 + $2,106,835
$2,672,785
2020
$23,813 (+15.8%)
2019
$20,558 (+56.6%)
2018
$13,125 (+4.6%)
2017
$12,549 (−2.8%)
2015
$12,909 (−1.8%)
2014
$13,151
Tax history for 150 12Th St
Year
Property tax
Land + Additions
Assessment*
2025
$35,658 (+14.6%)
$1,191,729 + $2,611,718
$3,803,447
2024
$31,124 (+1.9%)
2023
$30,554 (+4.3%)
2022
$29,282 (+7.7%)
$788,288 + $2,268,825
$3,057,113
2021
$27,188 (+14.2%)
$565,950 + $2,106,835
$2,672,785
2020
$23,813 (+15.8%)
2019
$20,558 (+56.6%)
2018
$13,125 (+4.6%)
2017
$12,549 (−2.8%)
2015
$12,909 (−1.8%)
2014
$13,151
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Permits
Beds
5
Baths
4
Stories
3
Lot width
—
Lot depth
—
Lot size
8,250 Sq. Ft.
Year renovated
2012
Sq. Ft.
4,536
Year built
2006
Style
Single Family Residential
County
Monroe County
APN
0566 33 00077670000000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Apr 21, 2026.
Jan 14, 2027 • Final
Building
Pool and hot tub
Dec 30, 2026 • Final
Building
Demolition
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking / Garage Information
Vehicle Storage: Garage, Off Street Parking, Guest Parking, Auto Door Opener, Attached