It's very easy to walk in the relatively compact cities and towns of the Mediterranean; it is not as easy to do so in Mountain View, which shares the Mediterranean climate classification.
In terms of weather, the North is as mediterranean as Ireland or Paris. Soria's winters had more in common with Chicago than with Valencia, (Valencia would be closer to California). Canary islands have their own atlantic climate.
The "Mediterranean diet" tag is also a gross oversimplification.
In terms of population we are also one of the more diverse countries in Europe, an historical melting pot of catholics, muslims, jews and americans with a salt of hindi, therefore we grow free of many stupid food taboo's. We eat a lot of seafood and pork meat is culturally ok.
Having strong bonds with America, Europe and Africa gave us access to a lot of different exotic products. There is nothing mediterranean in chicken, milk, bananas, chocolate, tomato or potatoes. Neither bread or wine are "Mediterranean" products in the strict sense. Not exclusively mediterranean species or cultured exclusively in the Mediterranean. A diet based in bread, meat and wine should be named "castillian diet".
Any data to back this up? I've checked eurostats  and the numbers don't support this assertion: 66% of all dwellings are flats (there are no flats in spanish urbanisations), and only 12% are detached houses (the most common building type in urbanisations).
Also, notice that these numbers are the larger (for % of people living in flats) and smaller (for % of detached houses) in all of Europe!