The Garcia-Shapiro house is right across from the Flynn-Fletcher house. However, in some episodes, the house across from the Flynn-Fletcher house was shown to look completely different than what the Garcia-Shapiro house usually looks like. In "Voyage to the Bottom of Buford", it was blue and a lot smaller. In "Phineas and Ferb Get Busted!", it was a very pale shade of tan and had two stories. In "The Great Indoors", it looked almost exactly the same, only it was all blue.