Good evening, dongs galore!
Yes, this behaviour is intended. To remove it, follow these steps:
-
Open the file “basegame_building_house.json” in the folder [Cataclysm-Home-Directory]\data[b]mods\Overmap_Rebalancing\Additional_BuildingSpawns_BaseGame[/b]
-
Replace its content with the following:
[
{
"type" : "overmap_special",
"id" : "house",
"overmaps" :
[
{ "point":[0,0,0], "overmap": "house_north", "connect":"road" }
],
"locations" : [ "by_road" ],
"city_distance" : [10, 50],
"city_sizes" : [1, 12],
"occurrences" : [2, 8],
"rotate" : true,
"flags" : [ "CLASSIC" ]
}
]
Please inform me if you encounter any problems! 
Have a nice evening!
Leon