There is a Tiny Homes builder in Luling on I-10. They aren’t cheap either.
But they’ve been there for a few years so I guess they do sell some.
http://tinytexashouses.com/category/tiny-house-photos/
I think I have seen that place on I-10. The pictures are hard for me to see but they look cute. I would have to have A/C and a good shower.