This sounds ambitious and amazing and I can't wait to hear more, if it happens.

Wet ground makes sense! That's much less terrifying.

I am considering 1) site-poured epoxy, 2) large scale (34x34" or larger) traditional cement tiles that need site grinding/polishing/sealing, and 3) epoxy tiles that don't need the grinding but may not finish quite as flawlessly?????

The regional average prices aren't as crazy as one might think. If I go with a large shipment of #2, I could have everything for around $10/sqft, though.

No need for creating a running stream through your house. Fritztile or Nurazzo.

I hate how small Fritztile is. It looks like a high school to me. :(((((. Nurazzo is better, but I'm considering Daltile's quartz tile, too. It's bigger. Tilebar is the same as Nurazzo--up to 24x24". Nice price for quartz.

I like the durability of quartz and the stain resistance but am concerned about getting a PERFECT installation, in terms of tile height. It needs to LOOK ground in place although it isn't.

I should add that at minimum, this material will go in the entry and the basement foyer, too. So I have old construction imperfections to deal with. I have every confidence that my framing guy will get the new floor to 1/16" tolerance across the whole floor.

The price will frankly determine how much of that floor I do. If I can do it for $10/sqft, the whole floor gets it. If I can't, then just the kitchen and entry.

A 24”x24” tile needs flatter than that. And a heck of a lot stiffer than the typical creaky 70’s joists. One thing that could work would be a quarry tile mosaic. Or black slate hexagons. Very period appropriate and much more forgiving of flex in subfloors.

I don't have a flex problem. My deflection numbers are good for large scale tile. I have issues with perfect square and levelness.

I can easily rip up and stiffen the floors as needed. But PERFECT leveling is a bit beyond what I want to deal with!!!!

Tuscan leveling system!!! I forgot about that. There's an easy way to get it perfectly flat.

Real terrazzo is doable in an inhabited house, it's just expensive as hell. That's why they don't do it much any more; everyone wants more square footage and fancy window treatments instead of a timeless floor.

It's not horrific regionally. Weirdly, it's cheaper here than in the Midwest OR the South. (Nuts, right????)

But a poured floor MUST be done all at onc and before the cabinets go in. That is a serious, serious problem because we will still be using the old kitchen on the same level.

And I've decided I really do want to finish--really FINISH, not "get all the mechanicals and the expensive stuff right and worry about permanent finishes later"--at least this floor.

This is an insanely complicated project. The most complicated one I have ever overseen. I think that poured terrazzo just isn't going to be practical. I'm looking at various large tiles now--site ground or not.

I am doing this kitchen to a highly finished level--even though I'm not always using the priciest materials in the world for it! It's going to be a whacky ride, for sure!

Milly Rey what did you ever decide to do with your floors? How did they turn out?