In the future you will grow your home

Popsci has an article about growing your own home, as does Physorg.

I have been talking about this for years. I always liked the idea of growing it from one seed or spore, similar to the way that a mushroom sprouts overnight from a spore to the top heavy structure that it is.
In my vision I see it growing very quickly and then hardening or petrifying to a usable structure.
You would have to feed it some sort of material perhaps some type of organic waste. (maybe soylent green)
Their process is probably closer to happening then my crazy idea. I think it would be a combination of bio-engineering and nanotech.

This is a different type of growing but in the same vein.

Contour Crafting will print one for you layer by layer.

squidoo post on Arborsculpture
Growing Home
The Chair that grew
Plantware
The man that grew his own chairs
Treedome