Floorplan-to-3D DWG Conversion

I have a set of 2D floor-plans that I need translated into a clean 3D model. The goal is to give my interior design team a spatial reference, so I only need a basic volumetric layout—no furniture, textures, or photorealistic rendering... (Budget: £20 - £250 GBP, Jobs: 2D Drafting, 3D Animation, 3D Architecture, 3D Design, 3D Modelling, 3D Rendering, 3D Visualization, AutoCAD)