Laneway house is a house that opens onto a back or side lane, particularly on a lot that has an existing dwelling.

“巷屋”是在向后巷或边道开门的房屋，尤指靠在现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. 

他们那栋有两间卧室、1050平方英尺的巷屋既豪华又节能，简直就是为了满足他们的需要而设计的。