4100 Island Blvd PH-1 The Most Spectacular Penthouse in Aventura. Designed by acclaimed designers Claudio and Valentina Micu and featured in multiple publications, this extraordinary residence spans over 5, 000 SF and occupies half a floor with sweeping panoramic views of the ocean, bay, and skyline. Soaring 12+ ft ceilings and impeccable custom finishes define the interiors, including backlit onyx feature walls, bespoke millwork and closets, lacquered detailing, and architectural wall treatments throughout. Every detail reflects exceptional craftsmanship and refined modern luxury. Located in prestigious Williams Island, residents enjoy world-class amenities including a full-service spa, championship tennis, pickleball, panel, two restaurants, outdoor café, and a marina accommodating yachts up to 140 feet. A remarkable offering. Call us to show.