My previous house was marketed as link detached, but was built with 2 bedrooms above the carport, and neighbour's was the same.
Was fine for the first 10 years when we didn't use the rooms, then the neighbours had kids first, but we didn't notice as we never used the rooms (one was a storage room. the other a guest room). When we had kids, they started moaning about all the noise we were making and would bang on the walls and accuse us of deliberately making noise to annoy them and their kids! We pointed out we could now hear them too, but they were having none of it. Things escalated. We moved to a detached house! Some people don't seem to look properly at house layouts when buying. Before finding this one we looked at a few "link detached" houses that had rooms attached to the neighbours house! Bloody estate agents.