Lee Yun-fei believes that the fact that these northern Hakka grew tea necessitated more frequent interactions with Southern Fujianese people. This, in turn, influenced the architecture of the northern Hakka. In the south, there was less interaction between the two groups and relations are more tenser.
李允斐認為，這是由於北客家種茶，與閩南交易互動頻繁，建築型態在不知不覺中也受到影響；相對地，南部閩客關係較為緊張，互動較少。