The Build Your Room Achievements are earned through room building and designing. The actions needed to complete these range from gathering points in your own room to laying down bunny run tiles! You can get alot of these by having a booster in your room (Game Arcade), using duckets (wallpaper, floor, landscape) or using builders club (even free trial is good enough to get a few) (get your skates on my ice rink, roller rink, etc)