Download SimpleHomeBuilder Free Unity asset.
This Asset makes it easy to create a home without having the basic knowledge of the architect level. When designing / editing houses by the inspector, the user can immediately see the result of their actions, which greatly speeds up and simplifies the process of creating buildings.
Asset allows you to assign individual graphic material to each stage / type of construction, which allows you to create a similar home and very different from each other. After creating and saving construction, it is easy to replicate, you can create entire streets and neighborhoods of the same type / or similar custom design houses.