Guest Post by Sackerson.

James Higham reproduces a graphic from Amfortas re house size in selected countries:
 

... which got me thinking.

I looked up the ratio of arable land per person (average of 2009-11), and then added Amfortas' statistics:
 

As you see, the smaller the amount of arable land per capita, the smaller the house - except for Australia, which is still a young country in terms of immigration and development, and also has limited water resources.

Taking it one step further, I divided the house size by the arable land per person:

We now have two outliers, Australia and the UK. The real story here, I think: Britain is far too crowded and dependent on imported food.