What fictional address does House live at in the television series House?

House lives at the fictional address 221B Baker Street in House.

The address is a direct reference to 221B Baker Street, the London home traditionally associated with Sherlock Holmes. Gregory House is modeled in part on Holmes, so the address reinforces the show’s literary connection and its emphasis on deduction, observation, and unusual solutions.

Within the series, House’s apartment is presented as being in Princeton, New Jersey, rather than London. The borrowed address is therefore an allusion, not a claim that the character lives in the real Sherlock Holmes setting. The show uses many other Holmes-related parallels, including House’s name, Wilson’s Watson-like role, and House’s drug use and musical ability.

The distinction between 221B and 221A matters because 221B is the canonical Holmes address. It is also why this fact can be harder than identifying House’s hospital or profession: the address is a literary Easter egg embedded in the fictional setting.