Elle's Seasonal Buildings for Alternative Textures is a companion addon for Stardew Valley. This mod adds a lot of new buildings, some of which can be found in the original game and some of which can be found in the game itself. All of them can be used to decorate your worlds, and many of them can be used for construction, as they are in the original game.

To use the AT companion mod, you need to have the latest version of SMAPI. You also need to have the latest version of Alternative Textures. The best way to install the AT companion mod is to extract the ZIP file into your folder. The next step is to run the game using SMAPI. You need to do that in order to use the AT companion mod.