If you think building a house is this simple, you will be in for a rude awakening of biblical proportions when you start doing it.
I have two words for you: “development fees”. If you think that the county or city will allow you to build a house without you paying them, you’re dreaming. Also, as part of your plans, you will probably be required to install and pay for certain things like
a) Improved road
b) Sidewalk
c) Street lights
d) Drainage fees
e) Traffic fees
f) the list goes on and on
When you go through the process, you will then be fully educated on why houses cost so much here (pre-bubble).