The Odd Fellows Hall at 310–318 E Street is one of Old Town's most distinctive commercial buildings: a Second Empire structure with a classic mansard roof built in 1883, also known as the French Empire Mansard Building. It is among the best-preserved examples of the style in Northern California and sits in the heart of the historic district.
The building has housed various tenants over its history and is listed on the National Register of Historic Places. The mansard roof with its dormer windows and the cast-iron ground-floor facade are the details to look for. It is best seen as part of a broader walk through Old Town, where it stands out even among the other Victorian survivors.