BreakThru Realty

100 Cape Florida Drive, Key Biscayne, FL 33149

$19,800,000 · Active

  • 4 beds
  • 7 baths
  • 8,240 sq ft
  • 306 days on market
  • Single Family Residence
  • Built 2007
  • Lot 16,552.8 sq ft
  • 11,006 sq ft total
  • 7 garage spaces
  • Miami-Dade County
  • MLS# A11934196
  • Cape Florida Sub Sec 3
Photo 1 at 100 Cape Florida Drive, Key BiscaynePhoto 2 at 100 Cape Florida Drive, Key BiscaynePhoto 3 at 100 Cape Florida Drive, Key BiscaynePhoto 4 at 100 Cape Florida Drive, Key BiscaynePhoto 5 at 100 Cape Florida Drive, Key BiscaynePhoto 6 at 100 Cape Florida Drive, Key BiscaynePhoto 7 at 100 Cape Florida Drive, Key BiscaynePhoto 8 at 100 Cape Florida Drive, Key Biscayne

About this home

Enjoying an exceptional 270ft of L-shaped water frontage facing 185-ft-wide Pines Canal and the natural beauty of Bill Baggs Cape Florida State Park, this elegant island-coastal estate is tailored to a boating lifestyle. Offering calm and naturally sheltered harbor, concrete seawall, boat lift, dockside kitchen and side-dock boat storage that preserves unobstructed water views, the property provides a sense of openness, privacy, and tranquility. Clean architectural lines, an internal garden courtyard, and generous covered terraces fill the residence with natural light and create a seamless connection to the surrounding water and landscape. This elevated home offers 4 bedrooms plus staff quarters, 5 bathrooms, and 4 half-baths within 8,240 sqft of living space on a 16,500-sqft lot.Architectural tray ceilings, refined millwork, custom wall paneling, and thoughtfully designed built-ins with abundant storage add depth and craftsmanship while maintaining a light, contemporary coastal aesthetic. Formal living and dining rooms with elegant millwork provide an ideal setting for entertaining. The kitchen is appointed with Calacatta Gold marble countertops, gas cooking, Sub-Zero and Viking appliances, and a butler’s pantry. Additional highlights include 2 family rooms, fitness center with water views, 2 garages accommodating 7+ cars/golf carts, temperature-controlled wine cellar for 1,400+ bottles, elevator, retractable screen doors, generator and saltwater heated pool.

Features

  • Built-in Features
  • Elevator
  • Vaulted Ceiling(s)
  • Walk-In Closet(s)
  • Closet Cabinetry
  • Lighting
  • Outdoor Shower
  • Ocean Access
  • Canal Front
  • Seawall
  • Heated
  • In Ground

Schools

  • Elementary: Key Biscayne K-8
  • Middle: Ponce De Leon
  • High: Coral Gables

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

One Sotheby's International Realty · MLS@onesothebysrealty.com · Listing agent: Lucia A Marin

BeachesMLS logo All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. IDX information is provided exclusively 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. Data is deemed reliable but is not guaranteed accurate by BeachesMLS. Listings held by brokerage firms other than BreakThru Realty carry the name of the listing broker.

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 100 Cape Florida Drive.

Before You Make an Offer

Buying a waterfront home: ocean access, bridges and docks

Your Waterfront Buyer May Already Be Working With Us

BreakThru Realty works with buyers searching for waterfront homes with ocean access, no fixed bridges, deep water, private docks and Intracoastal frontage. Boaters know the vessel they need to keep behind the house, and they tell us. If you own a waterfront home, a broker can compare its frontage, dock and route to the ocean with those requirements and discuss a potential buyer match before you list.

BreakThru Realty works with hundreds of prequalified buyers searching for properties. Before you list, a broker reviews what you own, the market around it and whether an existing buyer's requirements match. If none does, you see how we would position it to reach other qualified buyers.

Find Out If We Have Your Buyer · Discuss Selling With BreakThru Realty

A potential match is a conversation, not an offer, until the buyer sees your property and makes one. No buyer is named and nothing about your property or business is shared until you decide to proceed.

Questions About 100 Cape Florida Drive

How much is 100 Cape Florida Drive?
100 Cape Florida Drive is listed at $19,800,000, which is about $2,403 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.
What are the property taxes on 100 Cape Florida Drive?
The listing reports annual property taxes of $155,395 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.
When was 100 Cape Florida Drive built?
100 Cape Florida Drive was built in 2007. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.
How long has 100 Cape Florida Drive been on the market?
100 Cape Florida Drive has been listed for 306 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Is 100 Cape Florida Drive waterfront?
Yes. The listing describes the water as ocean access canal front seawall. For a home with dockage, confirm the water depth at low tide, the seawall condition and whether the route to the inlet passes under any fixed bridges before you offer.
Which schools serve 100 Cape Florida Drive?
The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.
How do I see 100 Cape Florida Drive?
Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

To request a tour, call (786) 914-1017 or email sales@breakthrurealty.com.

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The 6 bedroom home at 131 Cape Florida Drive, Key Biscayne, FL 33149 is comparable and listed for sale at $16,500,000. Another comparable home, 591 N Mashta Drive, Key Biscayne, FL 33149, sold for $14,000,000 in August 2026. Other Key Biscayne neighborhoods include Ocean Club and Biscayne Key Estates. Nearby ZIP codes include 33109 and 33131. This property also neighbors Fisher Island, Brickell, and Miami. Compare it with the Key Biscayne housing market report.