Make Texture a preferred source on Google to support us
Add Texture to GoogleAt the top of Casa Mar, there’s more sky than house. The official figures put it bluntly: 3,357 square feet inside, 3,500 square feet on the roof. In other words, the terrace atop this Miami Beach penthouse is larger than the living space it overlooks. That’s about 325 square meters outside versus roughly 312 square meters inside, when converted. With such a reversal of proportions, this is no longer an apartment with a view but rather an open-air platform overlooking the Atlantic, complete with a few rooms below. Listed on the market on September 8, 2026, the property is priced at $6,999,999—just one dollar shy of the symbolic $7 million mark.
A rooftop that sets the standard
The address fits on a single line: 3739 Collins Avenue, in the Mid-Beach neighborhood—that stretch of waterfront nicknamed “Millionaire’s Row.” The penthouse combines two units, PH601 and PH603, at the southeast corner of The Caribbean condominium complex. The orientation matters, as it’s what opens the private balconies directly onto the ocean. But the real highlight is one floor up.
The rooftop terrace has been designed as a self-contained living space. It features a fully equipped summer kitchen, a natural stone bar, and a pergola, along with several reception areas spread across the space. The view offers a 360-degree panorama of the Atlantic. Such a layout clearly signals its intended use: entertaining, dining al fresco, and spending the day up high without having to go back downstairs. In a climate where people spend much of the year outdoors, these 3,500 square feet undoubtedly carry more weight in the equation than the fourth bedroom.
The Touch of an Art Curator
What sets Casa Mar apart from other penthouses along the coast has less to do with its square footage than with the person who designed the interior. The artistic direction and curation are the work of Ximena Caminos, an art curator and cultural placemaker, and co-founder of Faena Art. Her work typically involves creating spaces through culture, transforming a neighborhood or a building into a destination. Here, the scale is scaled down to that of an apartment, and the approach is evident in the decision to treat the walls as canvases for artwork.
The murals were, in fact, hand-painted to order by Argentine visual artist Augusto Falopapas. They transform the apartment into a space inhabited by a work of art rather than one that is merely decorated. On the structural side, Ximena Caminos collaborated with architect Galia Solomonoff of Solomonoff Architecture Studio, who was brought in as an architectural consultant. This duo defines the overall tone: colorful, bold interiors that stand in stark contrast to the neutral beige tones often found in seaside residences.
A clarification is in order. The listing attributes the design and curation to Ximena Caminos, but it does not specify the legal ownership of the property. Nothing in the information provided indicates whether the penthouse is held in the owner’s own name or through a company, nor who has occupied it.
Pink onyx and a mirrored ceiling
The palette of materials confirms a taste for understated brilliance. The floor is covered entirely, without interruption, in white marble. It serves as a light backdrop for the wall colors and reflects the light of the ocean. The kitchen features an island and countertops in pink onyx, a translucent stone whose veins come to life when backlit, paired with white oak cabinets and rose gold hardware. The combination is harmonious: the stone’s pink hue complements the metal, while the pale wood brings a sense of calm to the overall design.
In the living room, the boldest design element is overhead. The ceiling is clad in champagne-colored mirrors. Under the already generous ceiling heights—described as cathedral ceilings—this design visually doubles the volume and diffuses a golden light that evokes a Roaring Twenties hotel bar more than a contemporary living room. It’s a choice that may divide opinion, and that is precisely what gives it character.
The apartment features four bedrooms, four full bathrooms, and a powder room. The master suite includes a bathroom designed like a spa and a custom-built walk-in closet. The listing provides no further details on the layout of the rooms, so we’ll leave it at that.
An Art Deco gem from 1941
The building that houses this penthouse is not a modern glass tower. The Caribbean was designed by L. Murray Dixon, one of the architects who shaped the Art Deco character of Miami Beach, and built in 1941. It has since been converted and modernized into a luxury condominium. This heritage informs the interior design: champagne-colored mirrors, marble, and rose gold resonate with the spirit of a building born during the style’s golden age, rather than with the minimalist codes of the new constructions on Collins Avenue.
The building’s amenities, however, meet today’s standards. Residents enjoy direct access to the beach with dedicated service, an infinity pool with poolside service, private cabanas, a fitness center and spa, as well as 24/7 security at the entrance. Two covered parking spaces are included with the unit.
The Price of the Sky
Based on the 3,357 square feet of interior space, the price of $6,999,999—equivalent to approximately 6.35 million euros at the September 2026 exchange rate—works out to about $2,085 per square foot. This is an estimate, and it has its limitations: it completely ignores the rooftop terrace, which is, after all, the property’s main selling point. Including the 3,500 square feet of outdoor space would automatically lower this ratio, which highlights the difficulty of comparing Casa Mar to a traditional penthouse.
The cost of ownership also warrants close scrutiny. Condominium fees amount to $7,353 per month, or more than $88,000 per year. Added to this are annual property taxes of $60,599, based on the 2025 assessed value. In total, nearly $149,000 in fixed costs each year before any maintenance expenses—an amount that reflects the building’s amenities and the size of the unit.
The listing is being handled by Carl Gambino and Andrew Kardonski of Compass Florida, part of The Gambino Group. The property is listed on the MLS under listing number A12084862. Three weeks after it was listed, no information regarding potential offers or the status of the sale has been disclosed.