 The SEARCH project (Sheffield Environmental and Archaeological Research Campaign in the Hebrides) on South Uist has been developing a long-term perspective on changes in settlement and house form from the Bronze Age to the 19th century.Organisation within Iron Age roundhouses appears to have been very different from 19th century "blackhouses" in which the dwelling was shared with stock.Stock sharing living space with people is often regarded as a traditional Hebridean arrangement reflecting Norse influence.