Abeno Harukas, Japan's tallest commercial building, will fully open on March 7, Kintetsu Corp. has announced.

The 300-meter-tall building in the city of Osaka will open with an observation deck at about the 288-meter level, a Marriott hotel, offices and a fully refurbished Kintetsu department store.

"We want the building to become a new landmark in Osaka," Hidenori Akasaka, the firm's senior managing executive officer, said Tuesday at a news conference.

The department store partially opened in June. With the full opening, its retail space of 100,000 sq. meters will be one of the largest in Japan.

The observation deck will be located on the 58th through 60th floors. The admission fee will be ¥1,500 for adults.

Kintetsu said it will start accepting reservations for the observation deck at 10 a.m. Nov. 1. It will only accept group bookings of 15 or more people for the time being.

Also located in the building, the Osaka Marriott Miyako Hotel will have 360 guest rooms.

A museum in the tower will open March 22. Corporate tenants, including Okumura Corp., will start moving into the building in February.

Abeno Harukas will outrank Landmark Tower, a 296-meter high-rise housing offices, shops and a hotel in Yokohama, as Japan's tallest skyscraper. Tokyo Skytree is the world's tallest broadcast tower at 634 meters.