This was actually made long before the farm dlc so I just used workshop items at the time. But now you should be able to build something similar with the new farm dlc. I did build one like it in my newest house build. Video will be up soon for the walkthrough of it!
How did you do the area under the stairs with the trees? Looks like it is sunken in almost like a pool without water. It's quite perplexing, but a really awesome build. The whole house looks great!
