Before I recorded the video of modeling and texturing the tiny house, I've made a sketch.
First, I've blocked out the house shape in Blender.
Then I took this block out render and sketched my house idea on top of it using Krita.
After I'm done with sketching, I started modeling it inside Blender. (Modeling and texturing progress in the video!)
Texturing was done in Blender. Texture atlas was created inside the Affinity Designer.
And I finished by creating a very simple scene to show off the tiny house asset.