Uta Baatz was born in Düsseldorf and studied psychology and philosophy. She is self-taught as a costume designer.

She has worked as a costume designer or associate at major theatres and opera houses in Paris, Geneva, Lyon, Amsterdam, Brussels, Cagliari, Helsinki, Monte Carlo, Stuttgart, Frankfurt, Tokyo, Salzburg, Schwetzingen, Erl, Madrid and Vienna, with directors including Robert Wilson, Andrea Breth, Brigitte Fassbaender, Peter Konwitschny, Jonathan Meese, Calixto Bieito, Harry Kupfer, David McVicar, Ursel Herrmann, Robert Icke, Christof Loy, Johannes Erat, and often in co-operation with costume designers such as Anna Eiermann, Jan Tax, Jorge Jara, Frida Parmeggiani and Johannes Leiacker.