Expanded Construction offers 14 new outdoor buildings and 11 new interior decorations. It also changes the price & value of Building Materials. There's an unbalanced mod if you want to simply play around, and a more balanced mod if you want to stay immersed in the game world.
Version 2 is more balanced. It allows players to stay immersed in the game without losing out on construction.
This mod contains all the features of V1 but with edited stats: