靠在現有住宅旁所在位置的房屋，英文有沒有對應詞匯？來看看laneway house吧。

Laneway house is a house that opens onto a back or side lane, particularly on a lot that has an existing dwelling.
“巷屋”是在向后巷或邊道開門的房屋，尤指靠在現有住宅旁所在位置的房屋。

For example:

Their two-bedroom, 1,050-square-foot laneway house is sleek and energy-efficient, and designed to meet their exact needs.
他們那棟有兩間臥室、1050平方英尺的巷屋既豪華又節能，簡直就是為了滿足他們的需要而設計的。

（中國日報網英語點津 丁一）