It is possible if you go tiny/tiny-ish. But it will be a small house and most likely not on a foundation. There are many tiny home companies that build homes for 100k or less, but they are usually tiny houses or "houseboats." For example AM Tiny Homes or Tumbleweed Houses. A new off-grid tiny house AMTinyHome 66-128 can be built for 100k+, with a lot of DIY involved it may even cost less.