Cadogan Estates offered the RPO the use of the hall as its principal venue in late 2001.

[2] The RPO gave its first concert as the resident ensemble of Cadogan Hall in November 2004.

In February 2006, a recording of Mozart symphonies with John Eliot Gardiner and the English Baroque Soloists was produced and made available immediately after the performances.

[7][8] In 2009, art rock band Marillion recorded a concert there which was released on the album Live from Cadogan in 2011.

[15] The changes included new lighting and sound systems and bespoke acoustic ceiling modules in the performance space.