|First Appearance:||A Tale of Two Brothers|
Mario's house first appeared in "A Tale of Two Brothers," where he and Luigi play Wii Tennis on the couch and Mario is the one who wins the game. Unfortunately, they soon have a quarrel over it, in which Mario gloatingly and rudely tells Luigi he sucks at playing Wii Tennis. This offends Luigi, who gets up from the couch and orders Mario to take back the insult. When he refuses to, Luigi accepts this and leaves the house in anger. However, this doesn't bother Mario as he lets his brother go and tells him he doesn't need him anyway since the game's title is Super Mario; then he asks Luigi who he is as he heads out the front door. Afterwards, when Mario feels very sad and lonely without Luigi, he regrets what he had said to him and wishes to have him back. When Luigi does return, he and Mario apologize for their fight earlier and make up.
Later, in "One Ring that is better than a Compass," the Mario Brothers watch The Lord of the Rings in the house. However, Luigi is unable to enjoy it as Mario repeatedly expresses his hateful thoughts and opinions on the film, bothering Luigi and ruining his first experience with the film.
The house makes its final appearance in Season One in "It came from Ash's Toilet." At the end of the episode, Mario and Luigi furiously leave Ash's house and go back to their own house, where they put on some uniforms, ready to get new jobs and quitting their former jobs as plumbers (due to the hassle).
Mario's house makes its second appearance in "A Day in the life of Mario." In the episode, Mario is in his room sleeping when his alarm goes off and he gets ready. Later, Mario, Luigi, and Link play Super Smash Brothers Brawl in the lounge.
The only other appearance that Mario's house made was in "Who is Scott Masterson?", in which Mario and Luigi are doing their auditions for Johnny Mushroom and the Kingdoms in their house again. Later, Mario gets sick and goes back home.
Mario and the gang decide to earn money in a variety of different ways, as Mario didn't pay rent and his house was about to be foreclosed.
- In real life, Mario's house is Chris Muller's. In an FAQ video, Muller mentions that it is on a ranch, thus explaining the Orchard and the chicken coup.