Or Paris, or Madrid, or much of the rest of Europe in which 3--5 storey townhouses are common. These might be single- or multip-occupant dwellings (e.g., a single family or household on multiple floors). Typically zoning is denser, though structures might be either attached or detached.

In either case, the land-usage intensity rises by multiple factors.

The option is not between 1-story quarter-acre development and a forest of Burj Khalifas. There is in fact considerable intermediate ground.