LeoCAD - LeoCAD is a CAD program for creating virtual LEGO models.
CADMAPPER - Instant CAD files for any location on earth
LDraw - LDraw is an open standard for LEGO CAD programs that allow the user to create virtual LEGO models...
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.
LDCad - LDCad is a multiplatform ...
Cadbull - Cadbull is a website that comes with an advanced collection of CAD blocks and DWG design, facilitating architects and designers to get done with their projects efficiently.