The ramen specialist will move in to a site in the arches beneath the railway line, with 26 indoor covers and a further 26 on the terrace.
On the menu will be Tonkotsu’s signature homemade ramen, alongside Japanese dishes such as gyoza, chilli chicken wings, and a selection of craft beers, sakes and cocktails.
There will also be takeaway and delivery options available.
The site will officially open on 19 February, but will be offering 50% off the bill from 12pm on 16 and 17 February.
Tonkotsu will join restaurants including Wright Brothers, Danish pizzeria Mother and Francesco Mazzei’s Fiume at the Circus West development.
Tonkotsu was launched by Emma Reynolds and Ken Yamada in Soho in 2013 and has since expanded to six sites in London and one in Birmingham.
The pair are also behind the Tsuru Sushi chain and Japanese restaurant Anzu in London’s St James’s Market development.