Farmhouse Redone is a mod for Stardew Valley that allows you to create your Farmhouse maps. You can freely design and build the map as you see fit. You can change and move the ground, walls, floors, etc. The only limits are the ones you set yourself.

It is a very versatile and powerful tool, and it is very easy to use. You can simply select a building, and then choose to move it to a new location. 

You can design and build whatever you want, and you can do so in a very easy and convenient way. You can add all sorts of things to your map, from a simple house to a very elaborate castle.