A mother-and-son
residential design studio.

LANGE was founded by mother and son Christiane and Tizian Lange, bringing together over three decades of experience in private residential property, psychology, sustainable construction and luxury real estate. Christiane’s background in psychotherapy and residential property has shaped a deep understanding of both homes and the people who live within them, while her work as a founding member of Klimatisch reflects a longstanding commitment to thoughtful, sustainable residential design. Before co-founding LANGE, Tizian was a Senior Consultant in the Luxury Division at Sotheby’s International Realty, becoming one of the youngest professionals to hold that position. Together, their complementary backgrounds form the foundation of a residential design practice guided by thoughtful judgment, timeless design and a genuine understanding of how exceptional homes are lived in.