2405 Coco Plum Dr

Marathon, FL 33050

$27,500,000

$1,485/ft²

9Beds

9.5Baths

18,524Sq ft

2026Year built

Single-family homeType

About this home

One of the Florida Keys' most significant newly completed trophy estates, now making its market debut fully completed and never occupied. This one-of-a-kind waterfront residence offers 18,736 SF of interior living space and more than 29,000 SF under roof on approximately 1.72 acres with 200 feet of ocean frontage. A property of this scale, quality and waterfront presence has become exceptionally difficult to replicate under today's development environment, making it as irreplaceable as it is exceptional. Designed for the most discerning owners, the estate features 9 bedrooms, 9.5 bathrooms, a detached guest residence, private elevator, 9-car garage, and an extraordinary indoor-outdoor living experience highlighted by a newly completed 100-foot infinity-edge pool, separate beach-entry pool, and expansive waterfront terraces, unveiling an outdoor environment never before presented to the market. Included in the offering is a deeded 60-foot boat slip at Bonefish Marina, located approximately two minutes from the residence, providing immediate access to world-class boating and fishing. Marathon International Airport is approximately five minutes away, allowing seamless arrival by private aircraft. Contemporary architecture, exceptional craftsmanship, absolute privacy, and one of the most exclusive waterfront settings in the Florida Keys define this truly irreplaceable trophy estate.

Features

Waterfront

Property details

Listing

MLS #: A12067078
Status: For sale
Listed on: Aug 8, 2026
Days on market: 2 days
Listing data updated: Aug 8, 2026

Interior

Beds: 9
Baths: 9.5
Living area: 18,524 ft²
Price per ft²: $1,485/ft²

Building & community

Type: Single-family home
Year built: 2026
County: Monroe

Lot & exterior

Lot size: 74,888 ft²
Waterfront: Yes

Days on market, price per ft² and the monthly HOA amount are calculated by this site from the MLS data shown; the association fee is normalized to a monthly figure.

True monthly cost

Mortgage (principal & interest): $139,055
Property taxes (est.): $25,208
Home insurance (est.): $600
Flood insurance (est.): —

Estimated total$164,863*/mo

* Some cost lines aren't available yet for this listing; the total shown is incomplete.

Based on 20% down, a 6.5% rate and a 30-year loan, plus this home's estimated Florida carrying costs. All figures are illustrative estimates — not quotes, not financial or insurance advice.

Sources: flood zone — FEMA National Flood Hazard Layer; mortgage, taxes and insurance figures — this site's own estimates; HOA / CDD — as reported for this listing.

What will this home really cost you?