[2] The center features a modern architectural style designed by Callison, an American company.

This tower is the third tallest building in Vietnam after Landmark 81 and the Keangnam Hanoi Landmark Tower in Cau Giay district.

Lotte Center Hanoi includes offices, a 5 star hotel, a 6th floor Lotte Department Store, serviced residences, the Evian Spa, the Lotte Mart, restaurants and an observation deck.

[citation needed] There is an observation deck on the 65th floor named Top of Hanoi.

After exiting the elevator, there is a short set of stairs that takes visitors up to the highest floor of the building, this level is the top of the building and thus has no roof.