I do not know how difficult it is to do now a days but my dad and uncles designed my grandmothers house about 30 years ago, house is about 3800 sq ft.
My dad is a civil engineer, my 1 uncle is a metallurgical and my other uncle is a electrical engineer. together they built the house, my metallurgical engineering uncle (into mining) found a plot of land that was stable (he drilled core samples), my dad in conversation with my grandpa / grandma about what they wanted then worked up the plans and he stamped them got them approved thru building code (he also was worked for another town as an inspector). my electrical engineer uncle did all the electrical and hvac design work. they didn't do any of the handiwork themselves, only the design work, they handed it to a contractor to build it from the ground up... I think they said it only cost about 30-40k (back in those days) ...
My dad is a civil engineer, my 1 uncle is a metallurgical and my other uncle is a electrical engineer. together they built the house, my metallurgical engineering uncle (into mining) found a plot of land that was stable (he drilled core samples), my dad in conversation with my grandpa / grandma about what they wanted then worked up the plans and he stamped them got them approved thru building code (he also was worked for another town as an inspector). my electrical engineer uncle did all the electrical and hvac design work. they didn't do any of the handiwork themselves, only the design work, they handed it to a contractor to build it from the ground up... I think they said it only cost about 30-40k (back in those days) ...
