Living in Port Antigua, Islamorada: A Complete Neighborhood, Boating & Real Estate Guide

Port Antigua is one of those Islamorada neighborhoods where the amenities outside the house are almost as important as the property itself. Located around Mile Marker 74.5 on Lower Matecumbe Key, Port Antigua is an established deed-restricted waterfront community of more than 300 properties built around wide canals, boating access and one of the most recognizable private homeowners beaches in the Florida Keys. Most properties are single-family homes, with a small number of duplexes and the Sandy Pointe condominium community also included within the association. What makes Port Antigua particularly appealing is the combination of deep-water canal homes, limited direct Florida Bay frontage, a private white-sand bayfront beach, neighborhood boat ramp and relatively quick access to both Florida Bay and the Atlantic Ocean. For buyers whose ideal Keys lifestyle involves keeping the boat behind the house, spending afternoons at a sandy beach and being able to choose between bay and offshore boating, Port Antigua offers a combination that is difficult to find elsewhere in Islamorada.

Where Is Port Antigua?

Port Antigua is located at approximately Mile Marker 74.5 on Lower Matecumbe Key, toward the southern end of Islamorada, Village of Islands. This location gives the neighborhood a distinctly different feel from communities farther north on Plantation Key. Lower Matecumbe is narrower and generally quieter, with much of everyday life centered around the water, fishing and boating. Port Antigua sits on the Florida Bay side of the island, but the nearby Channel 5 area provides convenient access between the bay and Atlantic, making the location particularly attractive to boaters who regularly fish or cruise on both sides of the Keys.

The tradeoff to this Lower Matecumbe location is distance from some everyday services. Plantation Key School and Coral Shores High School are approximately 15 miles north, so Port Antigua is not as convenient to the schools as neighborhoods such as Indian Mound or Venetian Shores. That is worth considering for families with children attending school daily. On the other hand, the neighborhood is well positioned for buyers who prioritize boating, fishing, privacy and a more relaxed Lower Matecumbe setting.

What Do Homes Cost in Port Antigua?

Port Antigua is predominantly a waterfront neighborhood, and pricing is heavily influenced by the quality of the house, amount of dockage, canal position, proximity to open water and whether the property is canal-front or directly on Florida Bay. Based on recent 2025–2026 sales and current listings, a practical range for canal-front homes is approximately $2.5 million to $5.5 million, although older or smaller homes can occasionally fall below that range and exceptional newer construction can exceed it. Recent examples illustrate the spread: 105 Buena Vista Court sold for $2.15 million, 104 W Plaza Granada sold for $2.241 million in December 2025, 141 El Capitan Drive sold for $2.5 million in March 2026, and 125 Porto Vista Court sold for $3 million in July 2026. At the upper end of the current canal market, a larger home at 44 W Plaza Del Lago has been offered at $4.75 million.

Direct Florida Bay frontage occupies a substantially more limited and premium segment of the neighborhood. These properties combine open-water views and sunsets with the Port Antigua beach and boating lifestyle, and larger bayfront homes can move into roughly the $4 million to $11.5 million-plus range, depending on the house, lot, dockage, construction and exact waterfront position. Because there are comparatively few direct-bay properties and transactions are less frequent than canal sales, I would treat that range as a general market guide rather than a neighborhood-wide valuation rule. Historical Port Antigua bayfront properties include substantial residences with approximately 97 feet of dockage and expansive open-water exposure, illustrating how different this segment is from an interior canal home. 236 Costa Bravo Drive on White Marlin Beach just closed June 2026 with a neighborhood record of $11.5M 

Price per square foot is particularly limited as a valuation tool in Port Antigua. A smaller older home with excellent deep-water dockage and quick bay access may command a premium that does not make sense if compared only with interior square footage. Conversely, a newer or significantly larger home deeper within the canal system may have a higher overall price while offering a different boating experience. In Port Antigua, the house, dockage, canal location and access to open water need to be valued together.

Why Is Port Antigua So Popular With Boaters?

Boating is one of the primary reasons people buy in Port Antigua. The association itself highlights the community's wide canals while individual property records show homes with substantial deep-water dockage and multiple boat lifts. It is common to see homes with one or even two boat lifts. 

The location is very ideal with the direct access to the bay and close proximity to channel 5 bridge to cross over to the ocean side. 

Channel 5 and Access to the Atlantic

One of Port Antigua's strongest boating advantages is its proximity to Channel 5, which provides an important route between Florida Bay and the Atlantic side of the Keys. Port Antigua owners can leave the neighborhood through the bay and use the Channel 5 area to reach Atlantic waters for offshore fishing, diving and reef trips without traveling all the way north to another major crossover. Property marketing within Port Antigua also commonly references access to both the bay and ocean through the Channel 2 or Channel 5 bridges.

This two-sided boating access is especially valuable in Islamorada because conditions on the bay and Atlantic can be very different on the same day. Someone who fishes offshore may want ocean access one morning, while a windy afternoon may be better spent cruising or fishing the backcountry. Port Antigua's position gives owners flexibility rather than tying their boating lifestyle exclusively to one side of the islands.

The Port Antigua Private Bayfront Beach

If boating is one of Port Antigua's defining features, the private homeowners beach may be the other. The association maintains a white-sand beach directly on Florida Bay with tiki huts, picnic tables and grills, creating a true neighborhood waterfront amenity rather than simply a small access point. The community also has a private boat ramp.

This is a significant differentiator in the Florida Keys, where naturally sandy shorelines are limited and many waterfront neighborhoods have excellent boating but no meaningful beach. In Port Antigua, owners can live on an interior canal and still have access to an expansive bayfront area for swimming, watching sunsets, gathering with family and spending time on the water without taking the boat out. Recent property listings specifically describe the beach as easily accessible by golf cart from within the neighborhood, which is very much part of how residents use the community.

The beach also changes the appeal of Port Antigua for families and second-home owners who may not be serious boaters. Someone in the household may spend every morning fishing while someone else simply wants a sandy place to swim or watch the sunset. Port Antigua provides both within the same residential community.

Understanding the Port Antigua Property Owners’ Association

Unlike some Florida Keys neighborhoods with voluntary civic associations, Port Antigua is a deed-restricted community governed by the Port Antigua Property Owners’ Association (PAPOA). The association was founded in 1969 and manages the community's common properties, beach, boat ramp, architectural controls and neighborhood rules. The current official fee schedule lists annual association dues of $500, although assessments are subject to change and buyers should verify the current amount for the specific property before closing.

The association also maintains architectural and property standards. Construction, additions and remodeling within Port Antigua require review through the Architectural Control Committee in addition to appropriate Village permitting. The association specifically advises prospective buyers to familiarize themselves with rules involving fences, outdoor structures and property appearance. This is an important distinction for buyers who may be comparing Port Antigua with less restricted Florida Keys neighborhoods. The restrictions create additional oversight, but they are also intended to preserve the appearance, amenities and character of the community.

Access to the beach and boat ramp is controlled through association gate cards. The current fee schedule states that the first two cards are included, with charges applying for replacement cards. Because association fees, rules and access policies can change, buyers should review current governing documents and obtain an estoppel during the purchase process rather than relying solely on MLS information.

What Are the Homes Like in Port Antigua?

Port Antigua contains a broad mixture of housing despite being predominantly waterfront. Buyers will find older concrete Keys homes, extensively renovated residences, newer elevated construction and substantial luxury homes approaching or exceeding 4,000 square feet. Current listings range from a roughly 1,200-square-foot canal home to newer and larger properties exceeding 4,000 square feet, which explains part of the significant spread in neighborhood pricing.

Because many Port Antigua homes were constructed during different building-code eras, construction should be evaluated independently from location. CBS construction, elevation, roof age, impact windows and doors, wind mitigation, lower-level enclosures, permits and flood-zone compliance can materially affect insurance costs and future renovation options. Buyers should be particularly careful with downstairs spaces in older Florida Keys homes because how an area is currently used does not necessarily establish that it can legally be used as conditioned living space.

Caloosa Cove Marina: A Major Convenience for Port Antigua Boaters

Another practical advantage of Port Antigua's Lower Matecumbe location is its proximity to Caloosa Cove Resort & Marina at approximately Mile Marker 73.5, only about a mile from Port Antigua. For someone who uses their boat regularly, having a full-service marina this close is more meaningful than it may sound on a listing sheet.

Caloosa Cove Marina operates wet slips and dry storage, while the adjoining Caloosa Cove property has a general store with bait and tackle and other boating necessities. The marina also accommodates transient and long-term dockage and promotes fully enclosed dry-storage options.

For Port Antigua owners, that creates a convenient nearby stop for boating needs rather than requiring a longer run into central Islamorada. It is particularly useful for fuel, bait and tackle, provisioning and storage needs, while its position near the Channel 2 and Channel 5 area makes it naturally connected to the same boating routes Port Antigua residents regularly use.

Restaurants and Everyday Life on Lower Matecumbe

Port Antigua is more removed from Islamorada's central restaurant corridor than neighborhoods around Upper Matecumbe and Plantation Key, but Lower Matecumbe still has nearby dining and boating-oriented businesses, and central Islamorada remains an easy drive north. Caloosa Cove itself adds nearby marina and resort amenities, while additional restaurants and waterfront dining options are scattered along Lower Matecumbe and toward central Islamorada.

This location is best understood as a tradeoff. Someone who wants to walk or golf-cart to a large collection of restaurants may prefer a neighborhood closer to central Islamorada. Someone whose priorities are a large private beach, wide canals, boating and a quieter residential setting may view Port Antigua's Lower Matecumbe position as an advantage. For many owners, the neighborhood is less about being close to nightlife and more about being close to the boat, beach and water.

Is Port Antigua Good for Full-Time Living?

Port Antigua can work extremely well for full-time residents who prioritize waterfront living, although it fits a different lifestyle from neighborhoods closer to schools and commercial centers. The combination of a residential setting, private beach, boat ramp and waterfront access creates a community where a significant amount of recreation happens without leaving the neighborhood. A typical weekend can involve taking the boat out in the morning, returning home for lunch and heading to the beach by golf cart for sunset.

For families, the beach provides a valuable shared neighborhood amenity, while boaters benefit from the canal system and nearby Atlantic crossover. The main practical consideration is that schools, larger grocery trips and some everyday services require more driving than they would from a Plantation Key neighborhood.

Is Port Antigua Good for a Second Home?

Port Antigua is particularly compelling as a second-home neighborhood because many of the amenities people travel to the Florida Keys to enjoy are built directly into the community. A waterfront owner can keep the boat behind the house, reach Florida Bay quickly, cross toward the Atlantic through the Channel 5 area, spend the afternoon at the homeowners beach and return home without leaving the neighborhood by car.

That convenience is important for buyers who may only spend weekends or part of the year in Islamorada. Rather than maintaining a separate marina membership and driving to a public beach, Port Antigua combines private dockage at many homes with a community boat ramp and private sandy beach.

Who Is Port Antigua Best For?

Port Antigua makes the most sense for buyers who place boating and beach access near the top of their priorities. Serious boaters benefit from wide canals, substantial private dockage at many properties, Florida Bay access and convenient Atlantic access through the Channel 5 area. Families and second-home owners benefit from having a genuine private sandy beach within the neighborhood. Buyers who own trailerable boats can also use the private neighborhood ramp, while nearby Caloosa Cove adds convenient marina services and storage options.

The neighborhood may be less ideal for someone who wants immediate proximity to schools, grocery stores and the busiest restaurant areas of Islamorada. It also may not appeal to buyers specifically seeking a neighborhood without deed restrictions. Those are meaningful tradeoffs rather than negatives; they simply define the type of buyer for whom Port Antigua works best.

Is Port Antigua One of the Best Boating Neighborhoods in Islamorada?

For buyers who want both serious boating infrastructure and a genuine sandy beach, Port Antigua belongs high on the list. Venetian Shores may appeal to buyers prioritizing Upper Keys convenience and Snake Creek access, while Indian Mound offers a particularly strong full-time family location near the schools. Port Antigua's strength is different: wide canals, substantial dockage, Lower Matecumbe boating, proximity to Channel 5 and a private white-sand Florida Bay beach all exist within the same neighborhood.

That combination is relatively difficult to duplicate. Many Florida Keys neighborhoods have excellent canals. Others have community water access. Far fewer provide strong boating infrastructure and an expansive private sandy beach together.

Final Thoughts on Living in Port Antigua

Port Antigua is a neighborhood where the value extends well beyond the walls of the house. Canal-front homes currently occupy roughly the $2.5 million to $5.5 million range, with individual values varying substantially based on construction, dockage, location and condition. Direct bayfront properties are much scarcer and can reach approximately $4 million to $12 million or more, depending on the residence, lot and waterfront.

What buyers are really purchasing, however, is the combination of the property and the neighborhood infrastructure around it. More than 300 properties share access to a private white-sand Florida Bay beach with tiki huts, picnic areas and grills, along with a private neighborhood boat ramp. The canals provide substantial boating opportunities, Channel 5 makes reaching the Atlantic relatively convenient, and nearby Caloosa Cove provides marina services, bait and tackle, and boat-storage options within roughly a mile of the neighborhood.

For someone considering Port Antigua, the decision should come down to how they actually intend to use their Florida Keys home. If the ideal day begins with leaving from your dock, includes fishing or diving on either side of the islands, and ends with a golf-cart ride to a private sandy beach for sunset, Port Antigua offers a combination of amenities that very few Islamorada neighborhoods can replicate.