Most places with round buildings (in europe anyway) tend to be associated with iron age (and earlier) settlements and you'll have a hard time finding maps, mostly because there isn't really much left to map except some post holes in the ground. Also they tended to be small with locations chosen for factors like defence (like crannogs and big hill forts) and nearby food/water sources, good land for farming etc.

And the shape of the buildings themselves doesn't lean to producing the traditional idea of a street plan.

I have looked up all of the above in the past and what you tend to find is examples of the buildings themselves rather than village plans or maps.