Form 2 - The most advanced desktop 3d printer ever created
Sweet Home 3D - Sweet Home 3D is a free interior design application that helps to draw the plan of house, arrange furniture on it and visit the results in 3D.
Obsidian 3D Printer - The $99 3D printer
SketchUp - 3D for Everyone
Glowforge - The 3D laser printer
MagicPlan - The floor plan creation app magicplan lets you create dimensioned floor plans without actively measuring or drawing. With its Augmented Reality.