That's a temporary name during renovations, it's going to become a JW Marriott in 2028, once the renovations are done.

It opened in 1999 as Merchant Court Hotel Le Concorde:

Merchant Court was a business-class brand of Raffles. After Raffles bought the Swissotel brand, it became Swissôtel Le Concorde Bangkok in 2005, and later Swissotel Bangkok Ratchada until this year

Jubilee Prestige Tower is the new name of the adjoining office building, formerly Le Concorde Office Tower
https://www.assetworldcorp-th.com/en...prestige-tower