Koen Olthuis at PChouse Award 2015 as jury & speaker
Koen Olthuis as one of the jury and speakers at the Modern Design Award for the top 10 best interior designs in Guanzhou, China 2015.
Koen Olthuis as one of the jury and speakers at the Modern Design Award for the top 10 best interior designs in Guanzhou, China 2015.