green building with running water & electric?

Hi all ive been interested in permaculture and green building for many months now and ive read a few books on straaw bale houses and im reading a book on cob houses now. What ive noticed all of these buildings have in common is small living quarters and no running water or electricity.

I geuss my main question is has any one ever incorporated grid electricity and running water into their green house?
If so can you show me or tell me how you did it?
Also I noticed the buildings were small, would it be possible to go large scale and make a building that is 3 or maybe 4 times the size of a normal green building? (this particularly pertains to cob as ive seen large straw bale buildings.)

Yes, I know this kind of goes against the permaculture ways but im a big baby and i'd like to have running water and electricity.