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For sale
$14,000,000
5beds
3,582sqft

350 Buttonwood Bight Ln, Plantation Key, FL 33036

5beds
3,582sqft
Single Family Residence
Built in 1987
1.3 Acres Lot
$12,412,500 Zestimate®
$3,908/sqft

What's special

Outdoor kitchenExpansive green lawns throughout

The most sought-after bay in all the Florida Keys, and one of the largest properties on it. This true double lot spans 1.3 acres with more than 250' of bayfront facing due west for the perfect nightly sunset. A white sand beach transitions into the clear bay waters, while a protected basin offers a 20,000 lb. lift accommodating up to a 40' boat and a 3,000 lb. skiff lift. Ultra-private, with no neighbors in sight and expansive green lawns throughout. The home is sophisticated yet inviting, with an incredible attention to detail throughout and a distinctive blend of Tuscan Mediterranean architecture and classic Keys styling. Enter through the gates into a private courtyard and open-air atrium with freshwater ponds and fountains. An elevator provides access to the second floor, where a one-of-a-kind living room overlooks the bay with exposed wood beams and tongue-and-groove ceilings. Updated throughout while preserving its original ornate finishes, this level flows from the living and dining rooms into the kitchen with a gas range and dumbwaiter. The bayfront primary suite features an impressive bath with dual vanity areas. Two additional bedrooms share a Jack-and-Jill bath, plus a half bath finishes off the second floor. Halfway down the main staircase is the entrance to one of the favorite rooms in the home: the library. With vaulted ceilings and a fireplace, it is the ultimate setting to work, relax with a good book, or serve as a fifth bedroom. The ground floor offers a separate ensuite guest bedroom, garage with front and rear doors, laundry room with double washers and dryers, and an outdoor kitchen. Outside, a massive 40' x 22' pool features a hot tub and beach-entry shelf. Extensive uplighting and downlighting illuminate the property at night. An additional front lot includes a detached structure currently used as a gym and storage. A once-in-a-lifetime opportunity to own one of Islamorada's most prized bayfront estates.

48 days
1,007
76
Source: FLKMLS,MLS#: 621096MLS Logo
Travel times

Living Room

Kitchen

Primary Bedroom

Zillow last checked:

Listing updated:

Listed by:

AJ Vetter 305-304-8841,

Palm House Real Estate

Source: FLKMLS,MLS#: 621096MLS Logo

Facts & features

Interior

Bedrooms & bathrooms
  • Bedrooms: 5
  • Bathrooms: 4
  • Full bathrooms: 3
  • 1/2 bathrooms: 1
Cooling
  • Central Air
Appliances
  • Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Disposal, Freezer, Gas Appliances, Ice Maker, Wine Cooler, Stainless Steel Appliance(s)
  • Laundry: Laundry Room
Features
  • Elevator, Walk-in Closet(s), Gym
  • Flooring: Tile, Carpet
Interior area
  • Total structure area: 3,582
  • Total interior livable area: 3,582 sqft
Video & virtual tour

Property

Parking
  • Parking features: Garage
  • Has garage: Yes
Features
  • Exterior features: Built-in Barbecue, Chickee Hut, Lighting, Outdoor Kitchen, Outdoor Shower, Sandy Beach
  • Has private pool: Yes
  • Pool features: In Ground, Salt Water, Concrete
  • Has spa: Yes
  • Spa features: Heated
  • Fencing: Fenced
  • On waterfront: Yes
Lot
  • Size: 1.3 Acres
Details
  • Additional parcels included: 00419390-000300
  • Parcel number: 00419350000000
  • Zoning: IS - Improved Subivision District

Construction

Type & style
  • Home type: SingleFamily
  • Property subtype: Single Family Residence
Materials
  • CBS
Condition
  • Year built: 1987

Community & HOA

Community
  • Security: Security System
  • Subdivision: Lysiloma (89.5)
HOA
  • Has HOA: No
  • Services included: None
Location
  • Region: Plantation Key

Financial & listing details

  • Price per square foot: $3,908/sqft
  • Tax assessed value: $7,628,719
  • Annual tax amount: $34,239
  • Date on market: 8/25/2026

Price history

DateEventPrice
8/25/2026Listed for sale$14,000,000+617%$3,908/sqft
Source: FLKMLS #621096 Report a problem
5/31/2002Sold$1,952,520$545/sqft
Source: FLKMLS #509214 Report a problem

Public tax history

YearProperty taxesTax assessment
2025$34,240 +3.5%$3,820,052 +2.9%
2024$33,084 +0.7%$3,712,393 +3%
2023$32,863 +2%$3,604,266 +3%
2022$32,227 -1.7%$3,499,288 +3%
2021$32,774 -0.7%$3,397,367 -0.3%
2020$33,001 $3,405,908 +0.2%
2019$33,001 +0.5%$3,400,392 +7.5%
2018$32,847 +12.2%$3,162,550 +4.4%
2017$29,271 +9.9%$3,028,616 +1.8%
2016$26,635 +0.6%$2,975,240 +1.3%
2015$26,479 $2,937,409
Find assessor info on the county website

Monthly payment

Est. payment
$86,244/mo
Principal & interest
$76677
Property taxes
$9567
More affordability toolsChevron Right

Estimated market value

$12,412,500

$11.67M - $13.16M

Not available

Climate risks

Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.

Neighborhood: 33036

Nearby schools

Plantation Key School
Grades PK-8 • 1 miles
10/10
GreatSchools® Rating
Test Score Rating
9/10
Student Progress Rating
10/10
Coral Shores High School
Grades 9-12 • 1.2 miles
5/10
GreatSchools® Rating
Test Score Rating
6/10
College Readiness Rating
6/10
Student Progress Rating
2/10