Welcome to 42 Nassau Drive, a beautifully updated 4-bedroom, 2.5-bath home located in the heart of Key Allegro-Rockport's most iconic waterfront community. Situated on a generous 11,400 sq. ft. corner lot, this property offers a rare combination of space, privacy, and island charm just steps from the water. Inside, the open-concept layout is perfect for both everyday living and coastal entertaining. The spacious living, dining, and kitchen areas flow seamlessly together and are filled with natural light and warm coastal touches throughout. A sunroom with trundle bed adds bonus sleeping space, and the split-bedroom layout offers privacy for guests and friends. Take in the breeze and peekaboo views of Little Bay from the expansive covered upstairs deck that spans the length of the home. Downstairs, a shaded entertainment area features a bar, dining space, and lounge area-ideal for gathering after a day on the water. The downstairs casita has additional sleeping for guests, making this home a true multi-functional retreat. The fully fenced yard is kid- and pet-friendly, with ample room to add a pool, plus extensive parking for cars, boats, or golf carts. Enjoy walkable access to the community pool, fishing spots, and all that Key Allegro has to offer. Whether you're looking for a full-time home, weekend getaway, or proven income-producing rental, 42 Nassau delivers the best of coastal living-move-in ready and offered furnished (with few exclusions). Come tour today!