Abstract: The present invention relates to a novel customizable interactive building modeling system capable of graphically depicting complex facility operations. It is contemplated that the system according to the present invention will be used with mechanical, electrical, plumbing and fire protection (MEPFP) systems within, by way of example only, and without limitation, hospitals, commercial buildings, industrial buildings, residential buildings, educational buildings, entertainment complexes, data centers, large warehouses, large nursing homes, recreational centers, penal facilities, and governmental and other facilities. The present invention further contemplates the user's ability to utilize the graphic user interface associated with portable and battery operated devices, such as tablets and smartphones, to enjoy the features of this novel system.