Tree houses are not non-traditional enough?

I like shell-houses and houseboats! Also, coral reef styled houses and igloos would be fun too. Biome specific housing is a great idea.

I was under the impression they mentioned different biomes provide different resources that would be used for this kind of thing? OR did I just hear what I wanted to? :)

They did say that different biomes would be made with the resources in those biomes. But i think the general layout will still be the same, i doubt they'll have elevated buildings for a biome on the coast for example.