Things you should know about Modular Building Design Modular construction is a process in which a building is constructed off-site, under controlled plant conditions, using the same materials and designing to the same codes and standards as conventionally built facilities – but in about half the time. Northgate Industries Ltd. has handled Modular Building design. To begin designing custom modular buildings design with our team, give us a call. in Public bookmarkswith modular-building-designby 2 users