How old do you need to be To book a hotel room at LEGOLAND® New York? Guests must be 21 years of age or older to check in and book overnight accommodations at the LEGOLAND® New York Hotel. Was this article helpful? Related articles How far is the LEGOLAND New York Hotel from the entrance of LEGOLAND Park? How early can we arrive at the hotel on Check-In Day at LEGOLAND New York? What makes a stay at the LEGOLAND Hotel special? Can we use the hotel pool after we check out? Do you offer discounts for first responders at LEGOLAND® New York?