I have built more than one, not personally/manually but I have been in the construction industry many (maybe too many) years and I could possibly be called a te

I have built more than one, not personally/manually but I have been in the construction industry many (maybe too many) years and I could possibly be called a technologist in the field. You won't be able to build a concrete house by yourself using "traditional" methods, if you were, you wouldn't be here asking how to do it (Catch 22), but there are more than a few techniques/building approaches that were actually designed for self-builders. Talking of concrete houses, the "working" ones are those that combine insulation with formwork. One example is the "Plastbau" building method, usig EPS as insulation/formwork/structure and another on is the "Isotex" one combining wood and EPS, a couple of videos on Youtube, JFYI: https://www.youtube.com/watch?v=ythSGowrNcw https://www.youtube.com/watch?v=ythSGowrNcw https://www.youtube.com/watch?v=VGuP2jp51g0 https://www.youtube.com/watch?v=VGuP2jp51g0 There are of course many more similar methods, but the overall idea is the same. Using these kind of elements a house can actually be built by two/three people without particular knowledge/experience in the field. Another possibility - often used in self-construction - is to "build" the whole house in EPS (in this case the EPS is in the middle of the walls and the reinforcing bar is on the outside) and then call some specialists to spray concrete (shotcrete). An example here: https://www.mdue.it/en/emmedue-panels https://www.mdue.it/en/emmedue-panels https://www.youtube.com/watch?v=8juvDvSeYL8 https://www.youtube.com/watch?v=8juvDvSeYL8 Otherwise there is nothing particularly difficult in a concrete carpenter's job, but you need to learn those abilities. And you will need a "supporting" technician, i.e. besides designing the house, do the calculations and whatever else needed to get a construction permit, the project needs to be made by someone that believes in the self-construction approach and that simplifies/adapt the design to the construction method chosen.