a simplified and user - friendly reusable modular building block system , for use by the professional architect or home design enthusiast , allowing for the creation of custom architectural scale models of building designs similar in appearance and function to professional scale models produced in architects &# 39 ; offices is presented . the building block system pieces are comprised of interlocking injection - molded solid plastic parts and grouped in five classes of various corresponding shapes and sizes . the construction and grouping of the block system pieces can be connected together at the user &# 39 ; s discretion in a limitless variety of creative configurations , thereby forming the walls , floors , ceilings , roofs , door and window openings , and other building design elements of an architectural model at 1 : 48 scale based on the user &# 39 ; s unique house design , or an existing design if so desired .