Lotte World Tower 롯데월드타워
Former names	Two Lotte World Tower Lotte World Premium Tower
Alternative names	롯데월드타워, Lotte Jamsil Super Tower, Lotte World Premium Tower
Record height
Tallest in the OECD countries since 2017[I]
Preceded by	One World Trade Center
General information
Status	Completed
Type	Office, Hotel, Residential, retail
Location	Sincheon-dong, Songpa District, Seoul, South Korea
Coordinates	37°30′45″N 127°06′10″E / 37.51250°N 127.10278°E / 37.51250; 127.10278
Groundbreaking	May 2009[1]
Construction started	January 22, 2010
Completed	December 22, 2016
Opening	April 3, 2017
Height
Tip	555.07 m (1,821.1 ft)
Top floor	497.65 m (1,632.7 ft)
Technical details
Floor count	123 above ground, 6 below ground
Floor area	301,081 m2 (3,240,810 sq ft)
Design and construction
Architect	Kohn Pedersen Fox
Developer	Lotte Engineering & Construction
Structural engineer	Leslie E. Robertson Associates[2]
Website
www.lwt.co.kr

The Lotte World Tower (Hangul: 롯데월드타워) is a 555.07-metre (1,821 ft), 123-story skyscraper. It is located in Sincheon-dong, Songpa District, Seoul, South Korea. It opened to the public on April 3, 2017. It is currently the tallest building in South Korea and the sixth tallest in the world. It is known as the 5th tallest tower in the world in 2023. The observation deck situated at 530 metres.

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