Palladium is located on Level 1 of Crown Towers Hotel. Take the escalators (located in between Nobu and Atrium Bar, near the Atrium staircase) up to Level 1 and Crown security and staff will be there to direct you.
If you require lift access, take the lifts between Spice Temple and Rockpool up to Level 1. Turn right as you exit the lifts, continue to walk past Conservatory and head towards the Crown Palladium foyer area.