This is a multi-building farm with stone walls and slate roofs. The STL’s are available here: https://cults3d.com/:1947056.
A very similar but not identical farm build is detailed by “Storm of Steel” here: https://youtu.be/umlfubM83-Y?si=A3jWVUSzHIA2qILR. The main difference is that his has brick buildings where this one is made of stone walls.