Watson Harbour Approved on Watson Island
Watson Harbour, a 40-story mixed-use tower with 105 units and 500 hotel rooms, has been approved at 888 MacArthur Causeway on Watson Island.

Watson Harbour, a 40-story mixed-use development, has been approved at 888 MacArthur Causeway on Watson Island. The Merrimac Ventures project will rise 535 feet with 105 residential units and 500 hotel rooms.
Updated filings show the unit count increased from 100 to 105; floor count, height, and hotel room count are now formally reported. The address has been standardized to 888 MacArthur Causeway, Miami, FL 33132.

The project includes a 2.2-acre public waterfront promenade, a maritime museum and art gallery, waterfront dining and retail, small business kiosks, and greenspace. Resiliency features include a seawall above base flood elevation and on-site stormwater management.
Watson Island sits along the MacArthur Causeway between downtown Miami and Miami Beach, adjacent to Jungle Island and PortMiami. Access is via the MacArthur Causeway (I-395), connecting to I-95 and Biscayne Boulevard.
- Address
- 888 MacArthur Causeway, Miami, FL 33132
- Units
- 105
- Floors
- 40
- Height
- 535 ft
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