Karsten and Bernd are both partners of osa – office for subversive architecture.

osa is a network for spatial experimentation which is dedicated to push the boundaries of common practice in architecture and develop projects that sit between art and architecture. It acts as a research platform which feeds into KHBT’s work and vice versa.

All osa projects shown on this site have been incepted, developed and delivered by KHBT.

For more osa projects and information about the network please visit the osa webpage.