Abstract: Systems and methods in accordance with various embodiments of the invention can merge local, programmatic design data with parametric building information models. Data for a portion of a structure stored in a local model can be converted from a design format to a common format and transmitted to a BIM merge management system. The BIM merge management system can perform a transformation process to update the information in the local model and/or information in a BIM using the data in the BIM associated with the portion of the structure. The updated data can also be transmitted by the BIM merge management system to a second personal device that converts the data to a design format of a local model on the second device and merges the updated data with the local model on the second device.