“This site cannot be viewed in your browser. This site contains active content that can only be viewed in Microsoft Internet Explorer” - EXACTLY what Netscape feared. Here, today, personally witnessed by yours truly.
I think TurboCAD is the way to go, because I have used it several times for my projects. I have successfully exported 3D home plans in .3ds or .obj and later edited it, if you are only using it for basic architecture.