I began by drafting a relatively simple two story house with a balcony area and garage. Following a tutorial on Udemy.com titled '3D House Design Mastery in Blender 3D' provided by Thomas McDonald; I started designing a 2D plan as a basis for logging my measurements and dimensions.
After working through the drafting techniques and adding windows/doors/dividing walls and a staircase, I used the 2D data to extrude the external walls from the ground level to make a 3D model. Blender has some great rendering tools to achieve realistic detail on the house; for example the texture mapping of the bricks, the gravel drive way, the exterior ground walls, the windows, doors, laminate floor and carpets were all achieved using similar techniques. I'm pretty happy with the outcome for a first attempt at drafting and hope to apply this knowledge when designing my own home.