A mews is mainly a British term for formerly describing a row of stables which were usually carriage houses below with living quarters above, built around a paved yard or court, or along a street, behind large city houses in the 17th and 18th centuries in London. These days mews stables have been converted into dwellings and they are modernised and considered highly desirable places to live.
Here is a mews in Kensington that we walked down. Given the lack of gardens, people try to add curb appeal with window boxes and pots of plants by the front door.