It's a good idea (sometimes in my mind too)

But i don't know if i wiil be enought strong to do that way...need also for more important thing a team of concrete workers able to read a plan ! it's what i am the more afraid about ...don't want my house to collapse....brrr

after for electric , tiles , sanitary, ceiling , painting , I thinck I can look after them ! because in my last rented house i have let built 2 rooms more and i'd use to work with them every day..but it was a single level !

Here where i "buy" land , i see already 2 builders and they want 1800 B pro m2

I cannot go more than 5000 b m2 for everything , for what I ask for the % of basic material !

Ps : And I can wait to paint the house outside, or put tiles outside terrasse and things like that...i plan to do that in 18 months at the condtion to go live inside my house to be able to save some more money every month...!