My inspiration for our last small master bath remodel was a very high-end hotel bathroom, with neutral finishes, light and shiny surfaces. I still adore it. Light neutral glazed Porcelanosa tile (large rectangles in the frameless shower, large squares laid diagonally on the floor), a furniture-looking vanity in a rich cherry with a matching large mirror, a built-in bench in the shower (which I use all the time), traditional Hansgrohe faucets in polished nickel. I kept all the fixtures in polished nickel, even the knobs on the vanity and the toilet lever. Used a light beige granite remnant for the vanity top and two shelves in the shower niche. A nice painting, soothing sage green walls. It feels like a spa to me when I walk in, even after 8 years. We had a limited budget, but I'm so glad I upgraded the fixtures to the polished nickel - made a world of difference. I did find a few items (like the Ginger grab bar in polished nickel) on eBay. We're now planning a move and adding a small master bath - I will probably take the same theme with me.

We kept our mbath smaller with no tub. Instead we did use electric radiant flooring which is so nice...we're in the NE so cold is an issue much of the year. I also insisted on a towel warmer. I love it. Not only does it warm the towels for me so I can wrap up in them after my shower, but it acts like a radiator and helps warm the bathroom too. We made our shower a steam shower as well. Nothing like steaming after shoveling snow in the freezing cold. It's also supposed to be good for you as you sweat out a lot of excess salts and toxins and especially if you have respiratory issues. We added a seat in the shower to sit on while we steam, and we put a light under the shower seat so we don't have to sit in an "operating room" environment while we steam, but can instead enjoy soft, indirect lighting. We used corian as everyone said granite gets and stays too cold to sit on. We also used corian for our countertop as it is softer and warmer than granite or natural stone, plus I love the integrated sink...so much easier to clean. We also put in a sound system so we can listen to news while we're getting ready in the a.m. or listen to relaxing music while we steam (though it has to be pretty loud as the steam generation is pretty noisy). We built the shower with a 2nd handheld by the shower seat. This was done with the idea of aging in place. It came in handy when I broke my ankle and had limited mobility to be able to sit and wash. I'm also a barefooter in the summer and I love being able to go into the shower, sit and wash just my feet before I go to bed. We have 2 sinks with a center column for storage. At the bottom of the column is an "appliance garage" with an outlet built inside. We use this for electric tooth brush and water pik so we each have access from our sinks and don't have cords hanging out all over the place. The other big thing for DH was to design the bath so the door didn't hit you when you were standing at the sink. That was a big bugaboo for him. We also built in a narrow cabinet next to the pot for tp storage and anything else. We did not do a separate WC and we are glad that we designed the area in front of the pot large enough to turn a wheel chair around...it was most helpful when I broke my ankle last year. The other big luxury for me was, we went with tankless hot water heaters and we have a 2nd one which does nothing but heat the water for the master bath. I told DH I didn't care what it took but I was NOT going to take another shower where, if he turned on the water, I froze. Now he can do laundry or dishes or flush or whatever while I'm showering and my water stays hot for as long as I want it.

Thank you Ron. The bid I received from my contractor to do this seems outlandish and I was trying to see if there were other options. I thought it might be more cost efficient to not have to open up the walls on two floors etc. I agree it looks better than having the conduit running horizontally up the house. But right now the bid is too prohibitive for the extra subpanel/circuit. The radiant floor itself is a minimal addition.

You can try a couple of things. Electric Radiant Heating...installed underneath flooring. https://www.warmlyyours.com/en-US#home You can add a towel warmer....surface mounted. https://www.warmlyyours.com/en-US/products/towel-warmers Possible Toe kick Heater...as the description say...installed under the toe kick of the cabinetry https://www.google.com/search?q=toe+kick+heater&client=firefox-b-1-ab&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiR45ejzarYAhUwleAKHbe1AysQ_AUICygC&biw=1536&bih=734