Let's see.
Do-it-Yourself Housebuilding by George Nash is a handy general reference, though it's more the build than the design
An old textbook of my husband's, Fundamentals of BuildingConstruction, Materials and Methods, was a help
The Complete Foudnataion and Floor Framing Book by Dan Ramsey probably wasn't neccessary, but he helped us be sure we weren't screwing up the fundamentals
Because of what we were building, we made pretty extensive use of a couple of Rob Roy's books on earth-sheltered housing, and another one that went into pretty exhaustive detail on calculating and designing around sun angles for passive solar heat gain. I can't find that one at the moment, but I'll add it when I do.
We also had a couple of old books of house designs, from maybe the 70s? The books were secondhand and inexpensive, and incidentally all the designs were "small" because of when they were done. I think we gave those away, unfortunately, or I'd offer them to you. But you might check Amazon and Ebay or the like, or, longer term, keep an eye open at thrift stores and library sales. That's where ours came from.
I'll have a look around and poke through the shelves in the man cave to see if I can't find more titles for you.