I have a lovely "Southwestern-ranch style house, just under 2300 sq. ft., built in the late '70s. It has lots of nice features, though some aspects would be considered out-dated these days by some, I imagine.
If I had my 'druthers', though, I'd have it jacked up and moved(not possible, because it is built on a concrete slab, the norm in this part of the country), and replace it with a small, passive solar!
My mother was an interior designer. She LOVED to pore over house plans, and I inherited her love of that, though I'm not at ALL into interior decoration per se, AND I don't have the financial resources, so the interior here is as it has been since we moved here. I like to 'play with' drawing plans for my 'dream' cottage, but don't think it'll ever come to pass, as I have acreage and horse facilities(barn, outbuildings, arena) that I would NOT want to part with!
Margo