Dubai’s Burj Khalifa–hailed as world’s tallest tower will soon have a new challenger as the same developer is coming up with a bigger tower in the city.

On Sunday, developer Emaar Properties, announced its plans to construct the world’s tallest new tower in the UAE, which will be a notch higher than the flagship Burj Khalifa. Currently, the Burj Khalifa is the tallest at 828 meters.

“It [the height] will probably be announced when we open the tower but it will be a notch taller than the Burj Khalifa,” said Mohamed Alabbar, chairman of Emaar, at an event, reports Market Watch.

Alabbar said the new tower would be taller than Burj Khalifa and the $1 billion tower will not be a traditional skyscraper.

The Emaar boss said the new tower will have rotating balconies and elevated landscaping, inspired by the mythical hanging gardens of Babylon.

There will be no residential units in the new tower. The biggest highlight will be an observation deck and a hotel. It is expected to be commissioned before the World Expo fair 2020 in Dubai.

The new project in a 6 square-kilometer residential and retail district will be next to Dubai’s creek and borders with a wildlife sanctuary. The cable-supported spires of the new tower will have garden decks packed with trees and greenery.

A boutique hotel, restaurants and glass balconies will rotate outside the wall of the tower.

Alabbar chose to compare the new structure being designed by Spanish-Swiss architect Santiago Calatrava Valls to a 21st-century Eiffel Tower. He said it will be a magnet of attraction for all tourists as well as property buyers. The latter will be ready to pay a premium for buying the nearby apartments for a view, reports ABC News.

The Chicago-based Council on Tall Buildings and Urban Habitat requires at least 50 percent of a structure’s height to have usable floor area to be considered as world’s tallest buildings.