Mark studied architecture at the Royal College of Art in London. In 1989, he traveled with business partner Astrid Klein to Tokyo, and together they found work with Toyo Ito. They established Klein Dytham architecture (KDa), in 1992 in Tokyo, working freely across disciplines including architecture, interiors, furniture, installations and events. KDa’s Awards include WAF Award for Best Cultural Building (2015) and Best Shopping Centre (2012), Wallpaper* Design Award, Design for Asia Grand Prize (2012, 2016, 2017) and Dezeen Award for Best Hotel (2021) and Best Hospitality Building (2021). In 2003 Mark and Astrid devised PechaKucha Night as an event for Tokyo designers to meet and share their work – it has now grown into an international network with events running in over 1,300 cities around the globe, inspiring creatives worldwide. They are board members of Toyo Ito’s NPO HOME-FOR-ALL, an initiative to build community hubs in earthquake and tsunami affected areas of Japan.