Full House has a plot hole that has confused fans for years: the presence of two staircases, one in the living room and one in the kitchen, that lead upstairs but only one can be seen upstairs. The Tanners' house also lacks an attic from the exterior, even though Becky and Jesse live there, and the living room is too small to accommodate large groups of people. Additionally, the house has no driveway, meaning everyone has to park on the street.

Although Full House is an iconic sitcom, its set design has some flaws that fans have noticed over the years.