The Wallpaper* Architects Directory has turned 20. Conceived in 2000 as our index of emerging architectural talent, this annual listing of promising practices, has, over the years, spanned styles and continents; yet always championing the best and most exciting young studios and showcasing inspiring work with an emphasis on the residential realm. To mark the occasion, this summer, we’re looking back at some of our over-500 alumni, to catch up about life and work since their participation and exclusively launch some of their latest completions. South Korean Architects Directory alumnus The System Lab has gone from strength to strength since its 2016 inclusion, with work expanding from private homes to masterplanning, housing and impressive commercial work. Here, we speak to founder Chanjoong Kim to explore the studio's evolution and latest work.