From the Super Mario Wiki
Yoshi's House is the home where Yoshi lives. In Super Mario World, it is depicted as a tree with a fireplace, a mailbox and seven berries (ten in Super Mario World: Super Mario Advance 2), and it is located on Yoshi's Island.
When arriving at Dinosaur Land, Mario and Luigi are closest to this location. They can inspect his Message Block to find that the inhabitant had gone to find his kidnapped friends. Mario and Luigi can come back riding any Yoshi to find the note replaced with a hint to investigate Kappa Mountain. The home reappears during the credits, where Yoshi, Yoshi's friends (representing the four legendary colors and the seven Baby Yoshis from each numbered castle), Princess Toadstool and Mario and/or Luigi celebrate their victory.
Yoshi's house appears in Mario Superstar Baseball, where it cameos as a Yoshi's Story-reminiscent cardboard cutout in the background of the Yoshi Park stage. Also, several trees lined up in a noticeably similar design decorate the goal areas in Super Mario World 2: Yoshi's Island and Yoshi's Island DS. One of these tree setups even appears on the map of the original Super Mario World 2: Yoshi's Island. Several houses similar to in appearance to Yoshi's House appear on Yo’ster Isle in Super Mario RPG: Legend of the Seven Stars.
Another Yoshi's House appears in Super Mario Galaxy 2 at Sky Station Galaxy. Similar to Super Mario World, Yoshi is not home. The sign in front of his house says a similar message as in Super Mario World. Although the house is not made of trees like its previous appearance, it is similar, having the sign reporting that he isn't home and there are berries on the roof as before.
Yoshi's House once again appears in Super Mario Odyssey. It is now located in the Mushroom Kingdom, retaining its Super Mario World appearance. Mario can travel to it by going through a painting in the Luncheon Kingdom. Unlike some other paintings that warp Mario between kingdoms, which are blank if Mario has not visited the kingdom they lead to, Mario can travel through this painting before the rest of the Mushroom Kingdom is unlocked, but cannot go beyond Yoshi's House. As in Super Mario Galaxy 2, there is a sign stating Yoshi is not home and is now at Peach's Castle. Mario can find a Power Star by Wall Jumping up the chimney.
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