Location: 300 Costanera Road, Coral Gables, FL

Square Footage: 15,000

Bedrooms & Bathrooms: 11 bedrooms & 15 bathrooms

Price: $18,000,000

This large waterfront mansion is under construction at 300 Costanera Road in Coral Gables, FL and is slated for completion in Summer 2015. It is situated on 1.3 acres and boasts over 400 feet of water frontage. It was designed by Portuondo-Perotti Architects and features approximately 15,000 square feet of living space with 11 bedrooms and 13 full and 2 half bathrooms. There is a grand foyer with staircase, elevator, formal living and dining rooms, gourmet kitchen, breakfast room, family room with catering kitchen, library, master wing with nursery, 8 additional bedroom suites, in-law quarters with 2 bedroom suites and 2 kitchenettes, gym, home theater, wine cellar and more. Outdoor features include a deck, expansive gazebos, swimming pool with spa and a 100 foot dock.