An informal gathering of filkers, usually in or near someone’s home. Activities and format can vary widely, depending on local traditions and preferences, but they usually last no more than a single day (or night). They often feature a filk circle, jamming sessions, perhaps a set from a visiting performer, and normal social activities. Many housefilks are held regularly, but possibly with rotating hosts.
Rainbowcon is an example of an event that straddles the border between a housefilk and a filk con.