I would like to build a web app for interior designing project

I would like to build a web app for interior designing. I will upload a 3D model of a flat, a room, office, kitchen, etc. made in AutoCad, SketchUp or any other designing software. Once model is uploaded in the app, need to add customisation to the wall color, floor tiles, door laminates, etc. There should be a drop down menu from where I would select color of the wall for example and I would visualise it in the model. Similarly, laminates, floor tiles and different combinations of the wall, color, floor tiles, door laminates, furniture laminates and designs can be visualised. For now I'm not expecting a full fledge app, just a demo app.