House M.D. echoes Sherlock Holmes through House’s apartment number, 221B. The number references 221B Baker Street, the fictional London address associated with Holmes and Dr. Watson.
The Holmes connection extends well beyond this address. Gregory House resembles Holmes as an exceptionally perceptive investigator who solves puzzles through observation, deduction, and unconventional reasoning. James Wilson parallels Watson as House’s closest friend and a more socially conventional companion. House’s surname also resembles Holmes’s, and the series includes additional references to Doyle’s stories.
The medical cases function like detective mysteries. Symptoms act as clues, false diagnoses resemble misleading leads, and the final diagnosis provides the solution. House often violates ordinary expectations, just as Holmes uses methods that appear strange but are supported by evidence.
The apartment number is a specific clue rather than the name of a hospital or medical department. It is sometimes confused with the real-world address 221B Baker Street, which is now associated with Sherlock Holmes museums and tourist history. In House M.D., the number belongs to House’s fictional residence.