You are going to want more than 32" for the toilet. 36" is standard (and perhaps even code in some areas???? Not here in Maine but I heard people saying that on other forums...) We have 34" and it feels fine but I dont think I'd want to go much tighter. You could solve that simply by flipping the closet and shower. So, have your shower -rotated 90 degrees and witha glass end wall- at the end of the tub (which is a nice setup you can see in many bathrooms, the tub deck can actually protrude under the shower glass wall and be a ledge or seat in the shower). Then the passageway moves to the left, and you can steal a bit of space from the other closet for the toilet. Either that of have a shorter vanity. 48" isn't a size I'd fight for. It's too short for a double vanity, really (unless you're using one of the new two-faucet 'trough" styles) so why not go down to 42" and have a better toilet area? For resale, though, you should consider a double vanity. Some people I guess expert truly huge ones, like at least 5+' long. But you CAN get smaller ones, Ikea has some great ones for tight spaces. But if you're not selling anytime soon, do what YOU like!! (But I still think you'll want more toilet space...)

Lovely! I like the classic white tile and porcelain and how you used furniture pieces in the bathroom. I love that the storage at the end of the tub has pull-outs that can be reached from the toilet. Your custom sink and backsplash and counter are unique and beautiful. Yours may be the first bathroom sink I have seen in which a small or medium dog could be washed! That is a good thing! I showed your pictures to my DH because I am thinking of classic tiled walls with a chair rail for when we redo our bath in a couple of years. He liked it! I was expecting him to say, "too old fashioned." He did not, he said it looked nice. From him, nice is a compliment. He even liked your rows of listello. I was just at the Tile Shop's site the other day looking at the Hampton tiles because someone was selling some on Craigslist. I am hoping to do as you did and get what I can cheaper there, and fill in the rest from the store. I can see that you worked very hard to secure all of your materials - and then cut the floor tiles to size and culled the Hampton tiles, too! You succeeded very well in getting the look you wanted while saving money along the way. Congratulations, and thank you for the pictures and great detail and supply list.

Thank you everyone for the suggestions. Really appreciated. @Carrie B I don't want families, couples, or kids. I am targeting people in their late twenties/thirties with whom I have things in common. I am very selective. 99% are people visiting the universities for a few months or travel nurses. Currently, I have a Pediatrician (last year of residency), a lab technician, and a travel nurse. And I am % sure in Gainesville you do not need a permit if you live in the house and you are homestead, I asked the city. @palimpsest it is my house, I am renting rooms just for a few extra years. The closet can be smaller, I can extend the bathroom toward the closet. Having a 5'x8' or 5'x7' bathroom on that corner is not an option, it would ruin that beautiful room @Greg GN Builders., That is a good point, but I can enlarge toward the bottom of the drawing and move the sink to create space for the person to walk. @latifolia Below is the entire floorplan Going back to the original question. I want to figure out if I can get this 4th bathroom in a way that it will increase house price values and do not look weird. What is the minimum depth of the bathroom that you think would be enough? See below the full floor plan. As you see, on the top right, there is already a 34x34 shower in the previous master bathroom (the part on the bottom of the drawing is a 2008 addition the previous owner made, the part where I live). The upper two-third of the drawing is the old house (1959). No one complained about the 34x34 shower or small bathroom and everyone was happy to pay $1400 a month for that room. Questions again are: 1) can I make the wall (which separates room from bathroom) 2.5" thick by rotating 2x4 studs (so 1.5" stud + 2x0.5" drywalls) or just using 2x2s? That would bring the bathroom shower to 34x34. 2) Can I do a pocket door on a 2'5" wall? 3) With the same studs, I could bring the wall between the proposed bathroom and the room on its left down to 2'5". Which would bring the new bathroom up to 36" of depth. 4) If I need an even deeper bathroom, I could move the wall by 5" into the next room. As you see the window is off-centered by exactly 5" in that room, moving the wall by 5" would bring the depth of the bathroom to 39" or 41" depending on executing only (1) or also (2). Honestly, I would prefer not to move that wall, it is an extra cost. What do you guys think?

I'll be a contrarian. I would never knowingly rent a room with a shared bathroom in the hall. That would be a complete pass - I don't even like having to use a hallway bathroom in a sleeping situation in which I would share with friends and family because if I need to use it in the night I would have to wake up more/get more decently dressed and I hate having to shlep stuff to take a shower or perform normal grooming stuff in a bathroom. I don't have the horror of viewing a toilet from a bedroom that some houzzers seem to have. It certainly wouldn't bother me on a temporary basis. I have a master bath in my home and I can't remember the last time I actually shut the door. I don't have issues with smells or humidity but perhaps that is because my Toto washlet has a built in deodorizer AND I have an excellent Panasonic fan which runs based on ambient humidity levels. I don't generally even have condensation on shower doors or mirrors after exiting let along huge amounts of humidity wafting through my bedroom. The question really is one of economics. There is a cost to installing the bathroom and OP would need to decide whether they would make up the expense by having increased rent and/or renting it out more frequently. Certainly any prospective renter would see a picture and determine whether they wanted the ensuite with a curtain in the room or use of a bathroom in the hall. Also resale value is a red herring. At such point that OP wanted to sell it would be relatively inexpensive to convert the bathroom into a closet if having the ensuite in that room was a negative.