Speaking of personal experience:
3 people working most of the time part-time (half the day), it took almost 7 years to build a 3 floor building. It was me: 8 to 15 years old, my brother 5 to 13 years old, and my father.
It includes almost all of the hard costs the article mentions except the foundation, brick laying, electrical, plumbing, windows, more concrete around the house, garage, and a myriad other things.
Sometimes we hired 1 or 2 people, once a month or something.
If all people were like my father, mathematician, polymath, expert in everything electrical, wood and metal constructions, with connections to many other engineers who regularly ask for advice, then the estimated total cost of building a 3 floor house is around 100.000 euros. That's the cost of materials, but probably less than that, 80.000 or something.
The estimated time for 3 adults (not children - teenagers), to build a 120 m^2 per floor building, all 3 floors, is 3-4 years.
Anyway, i think housing-transportation and many other things, will become free, once we move to carbon based buildings, vehicles and so on (see graphene). It is only carbon that offers us, strength of materials, flexibility, lightweight-ness, variety of materials so as to have everything in abundance. Abundance, like, personal skyscrapers, that kind of abundance.
It includes almost all of the hard costs the article mentions except the foundation, brick laying, electrical, plumbing, windows, more concrete around the house, garage, and a myriad other things.
Sometimes we hired 1 or 2 people, once a month or something.
If all people were like my father, mathematician, polymath, expert in everything electrical, wood and metal constructions, with connections to many other engineers who regularly ask for advice, then the estimated total cost of building a 3 floor house is around 100.000 euros. That's the cost of materials, but probably less than that, 80.000 or something.
The estimated time for 3 adults (not children - teenagers), to build a 120 m^2 per floor building, all 3 floors, is 3-4 years.
Anyway, i think housing-transportation and many other things, will become free, once we move to carbon based buildings, vehicles and so on (see graphene). It is only carbon that offers us, strength of materials, flexibility, lightweight-ness, variety of materials so as to have everything in abundance. Abundance, like, personal skyscrapers, that kind of abundance.