The village east-south-east of spawn in this seed (7648090710864857972) spawns with one plains village house, and the rest are savannah. The house spawned on the edge of a savanna biome and a savanna plateau biome, but as far as I can tell there's no plains anywhere nearby. The house at 204 / 133 is also on the edge of a savanna and savanna plateau, and it generated as a normal savanna house.

In 1.14.0, the village generates as all acacia houses, although the houses and their positions were slightly different too.