This version has the walk-on roof. Never spawns with a door (confirmed using a custom flatland level with village size and proximity set to extremes, giving tons of examples of every building to examine). Sometimes spawns as a variant with no ladders and no fences.
This version generally tends to spawn next to wheat farms, sometimes with a table that can be created on the left or right back corners from the door. Version and its variant always have dirt floors. This version has the "bump" on top. Dirt floor can have grass on it, sometimes overwhelming the inside of the house.