Abstract: Virtual reality simulations implemented in the Virtual Reality Modeling Language (VRML) provide the ability to create web based simulation environments with the mark of realism provided by three-dimensional representations. The Interactive Land Use VRML Application (ILUVA) enables users to perform simple site planning by creating building sites and then populating them with buildings, roadways, landscaping, and etc. We describe multiuser extensions that integrate a database interface to allow multiple users to use and save past sessions. The database interface is implemented using servlets and the JDBC provided in the Java core.