How big is LEGOLAND New York Resort? Our full site is more than 500 acres. The Resort will initially occupy 150 acres, making it the largest LEGOLAND ever built by Merlin Entertainments Group. Was this article helpful? Related articles Is LEGOLAND New York Resort an indoor or outdoor attraction? What ages is LEGOLAND New York Resort for? Do you have a park map? Are Shoes Required At the Park? What restaurants do you have at LEGOLAND New York Resort?