My family owns multiple cabins, mostly built by family members with the occasional framing and finishing work by friends of the family and/or a local contractor. The one my father owns was framed and roofed by contractors, but the closing, finishing, deck and float construction, and 30 years of repairs and renovations were done by himself and us kids. It sits on a steep hill, so putting a 60x20ft deck on 15ft stilts was no little effort for him with only the help of a bunch of actual children.

The major caveat: prior to my generation, the entire family was involved at some level in construction; from owning and operating to general labour.

It's _not_ a simple task, and the level of skill and intelligence required is something I think is often misunderstood or wholly overlooked by my peers in the tech industry. There's a kind of snobbish belief expressed by _some_ that because they can grok a complex software system they should be able to build a house; but that's a bit like believing that because you are able to write you should be able to easily be a sculptor. There may be shared core concepts, like the story being told and the ideas being conveyed, but the skills and knowledge involved and shared are few.