Emporis said:

This is the tallest building ever envisioned, at 4000 meters high with 800 floors.

Official name X-Seed 4000
Emporis Building Number 103142

Height (tip) *
Height (struct.) 4,000 m 13,123 ft
Height (roof)

Taisei Corporation is a leading Japanese architect-engineer-contractor, with four core areas of operation: building construction, civil engineering, real estate development, and engineering. Over the 128 years since its establishment, Taisei Corporation has undertaken many notable projects in Japan and overseas. Their corporate roots coincided with Japan's development as a modern nation, and they have continuously met the demands of a changing era, as we...

Emporis said:

This is the tallest building ever envisioned, at 4000 meters high with 800 floors.

Official name X-Seed 4000
Emporis Building Number 103142

Height (tip) *
Height (struct.) 4,000 m 13,123 ft
Height (roof)

Taisei Corporation is a leading Japanese architect-engineer-contractor, with four core areas of operation: building construction, civil engineering, real estate development, and engineering. Over the 128 years since its establishment, Taisei Corporation has undertaken many notable projects in Japan and overseas. Their corporate roots coincided with Japan's development as a modern nation, and they have continuously met the demands of a changing era, as well as people's aspirations for the future through sound construction operations.

http://www.emporis.com/en/cd/cm/?id=taiseiconstructioncoltd-tokyo-japan

http://www.emporis.com/en/wm/bu/?id=103142