To make this house, we don't start from concept art but from an idea and a few references found on the internet.
It is very important during any creation to spend a little time documenting to confront the different possibilities of shapes and styles. We need to see what has been done previously and be informed enough to be precise in our work.
As we are not completely sure of the form as a whole, we will adopt a method that involves testing and quickly developing ideas with simple forms. This method is called Blocking. This is done as follows:
We will begin the modeling by adding a cube at the center of a new scene (Shift + A and select Mesh | Cube), which will represent the central part of the house.
In the Object Mode, we will adjust the size in the Transform tab to have something realistic. It is an imposing house, so we will set 7 m on the z axis, 7 m on the x axis, and 8.5 m on the y axis.
In the Object Mode, let's duplicate our cube (Shift + D) in order...