[analyzethis]

"Nordics" covers a pretty diverse area regarding climate and quality of local timber. Most houses in Denmark (southernmost part of "nordics") are built with bricks because wood has a tendency to rot in our climate. Also, we experience almost no earthquakes.

[henrikschroder]

Or because clay is cheaper than wood in Denmark.

[analyzethis]

Bricks are not just clay. Ask yourself: How does clay become bricks? Hint: it has a cost.