photo old house, 225 sq ft
My understanding is that this house is on land that was a dairy within the city until sometime in the '40s or '50s. Nearby houses do appear to be post WWII wood frame. It does not match in style or size. Looks 1890s to 1920s to me. I always thought it would be a good yard to completely fill with garden. The house is 225 square feet and the lot is 7725 sq ft.
In recent years "the internet" made a big deal of the charm and simplicity of living in tiny homes, most often on wheels. I don't find much charm, but a lot of impracticality in the idea. But I'm glad there are still small homes to be had. I don't think my city would permit such a small house any more.