I live in a ridiculous place now, but I've lived earlier in two places I owned and two, maybe three others, arguably interesting re old construction.
Obviously I'm interested in all this and I got fairly adept in time, but I wish I'd paid attention to my interest in architecture before I got to be 40. But if I had, I probably wouldn't have keened onto landscape architecture, another whole world.
So, back to floors.
You have a tract house. You are changing it to beat the band.
In california, some of the houses in the san fernando valley are now worth millions for being themselves, or so I take it. I'm so old I remember as a child when they were being built.
I once owned three houses in Bakersfield for low investment. That was at about the height of my hating tracts. I went along with husband and advisor.
We sold, as we couldn't sustain commitment.
I read Venturi on Decorated Sheds, which didn't twist my thinking so much as it promoted my twisting.
Years went by in LA and much multimilliondollar silliness, and playful expansiveness.
It's your house, you are free to do what you want (I did), but I hope you start reading about architecture.