4. Pacific Park
Estimated Cost: $6 billion
Coming in at number four on our list of 10 biggest construction projects in NYC, with an enormous estimated cost of around $6 billion is a massive and soon-to-be bustling, Brooklyn project. From luxury condos to office space, and shopping to a transportation center, this project offers everything you need. Once completed, it will encompass 22 acres of redeveloped space in Brooklyn’s downtown.