I’ve owned two central London mews houses, and I’ve known two people who lived in mews as well. Because I liked them very much , I viewed lots more with a view to purchase. I liked them because they were proper houses, no one else lived above or below me. They also tend to suffer less from traffic as they are usually narrow streets and not through roads. Of course they were freehold because they owned the space and the ground print they occupied.
I would like to know exactly what is below, if it is someone else’s garage I wouldn’t touch it, you don’t want someone revving their precious sports car below your bedroom at all hours.
Most mews are not like that in terms of their floor space, they are essentially converted stables which lead to narrow rooms ( carriage and stable dimensions). They are ‘quirky’ because they are not purpose built, people who own them tend to prioritise style over convenience. This one certainly ticks the ‘original’ box but it seems to be rather less liveable than most I have known, the living space is crammed into a very low loft.
I would say that most mews are more suitable for singles or couples, not families with children. Even though we don’t have kids, we moved on ( to town houses) when we got a bit older and started to prize convenience and space over being cool.