We present the development of an Interactive Environment System (IES). The IES is used for simulating Cell-DEVS models built in CD++ that interact with a Building Information Modeling(BIM) system using Autodesk Revit architecture and Autodesk 3ds Max. CD++ is a modeling and simulation tool that was created to study complex systems by using a discrete event cell-based approach. It was successfully employed to define a variety of models for complex applications using a cell-based approach. The system developed has a highly modular collection of software packages designed to facilitate the creation of device independent simulation for BIM. The integration of the proposed system is investigated via the simulation of Diffusion Limited Aggregation (DLA) which represents the growth of mold in a building wall. The results affirmed the potential of the (IES) system for interactive simulation application.