However, the density of most cities isn’t that high (most/median residential buildings are probably 4-5 floors or less, except Rotterdam). For comparison Mumbai has way more taller buildings than almost any city in the Netherlands except for Rotterdam, and Mumbai hasn’t had a lot of high rises due to FSI limitations.

On the flip-side, the Dutch attitude to their countryside (or let's say, non urban land) is pretty brutal outside of the national parks. There's not the fetishization of "country" living that you get in the UK.

About weight, you can see the strength of the soil in the historic buildings. Like Delft: 3 stories high. Zaandam: 2 stories where one is build from wood. Amsterdam is build on wooden piles allowing for 5 stories.

And you can also see wealth in the height of the building. The Hague is most famous for that (as they say you come from clay or from sand), poor areas were build on clay -> low buildings. Rich areas were build on sand, high ceiling heavy buildings. Living on sand was/is healthier also, another reason why the rich flocked there.

Usually known as terraced houses, townhouses or row houses in English.