If you change it to a floating vanity you will not have any elbow room.

With that said, you think your bathroom is poor, look at this one

So enjoy the extra elbow room you have with the pedestal sink :-)

They make some shallow vanities and corner vanities that are pretty small and should work in your space. I wouldn't change the toilet type. Your not adding much space and moving the drain for the toilet is expensive.

https://www.wayfair.com/home-improvement/pdp/wade-logan-lulsgate-teak-17-single-bathroom-vanity-set-w001462930.html?piid=1384797447

Online shopping is the best. search ”small vanity for bathroom.” lots of choices.

By code, the toilet needs to have 15" of clearance on each side from the centerline. The widest your vanity could be is 20", less if the toilet is more than 15" from the side wall.

As noted above, moving a toilet drain is expensive. Ripping out all your floor, walls and tile to put the tank in the wall and waterproof for a lower shower curb could be $$$$.

Your bathroom looks very nice. Yes, it's small, but it sounds like a small home. Get a ballpark estimate from a contractor and then decide if the money and hassle is worth it.

This cutie is only 40 inches wide from tub to wall.

A vanity cabinet placed here will protrude forward, crowding the toilet even more unless you push it to the right corner. Have an adult sit on the toilet and measure from that person’s left shoulder to the right-side corner for a better idea of how wide the vanity can be. There will be some room inside the vanity for towels and supplies. Don’t move the toilet plumbing because you will hardly gain anything and it will cost money and require wall repairs.

Thanks everyone for your thoughtful comments! My main objection to the toilet is how clunky and bulky the tank looks. Perhaps there is a smaller, sleeker tank that I could retrofit on the existing bowl? And the small vanities that I have seen online appear to be builder grade. Does anyone know of a better quality (plywood or solid wood box, soft-close door, etc.) brand that makes this small size? It's used infrequently, but I really want to spruce up this space for visitors to the two guest bedrooms. Also, can I lower the height of the shower curb and just retile it, without having to replace the shower pan? The tile is from the 60's when the house was built, and has already been refinished once!

Its not expensive to replace the toilet

A concealed tank toilet would essentially require demolition of the bathroom. There is a frame that fits between studs in the wall, which may need to be moved, due to the position of the toilet, the outlet of the toilet is straight down through the wall.

The clearance for the toilet would be grandfathered even if it was less than 15" because you are not changing the dimension of the bathroom. The entire bathroom would have to be enlarged to meet current requirements.

Is this toilet fully wall mounted or does it have a base that both attaches to the wall and touches the floor?

A new, water saver toilet will be much smaller. You replace the whole thing, not just the tank. First you measure how far from the wall the drain is. 12" is standard, but some are 10". Check out the Toto website.

Please post a picture that shows how the toilet is wall-mounted. I am not trying to be a pest, but you will have Very Limited options for replacement of an old-school residential wall-mounted toilet, so any comment about how easy it is to change out a toilet and how many options you have will be completely irrelevant.

The drain already goes through the wall, nothing touches the floor. Good to know about grandfathering, because the toilet clearance is only 14" on the left side! I really like the Toto brand, but their website shows wall-mounted toilets that all have the tank inside the wall, no outside tanks. What do people think about the Fine Fixtures brand sold on Amazon, any experience with them? I'm thinking I want to keep the vanity white because the room is so small. And painted, not veneer, to avoid it peeling in the damp.

Fixture is American Standard, probably 60 years old! For some reason I can't seem to upload the photo, will keep trying.

I have watched and read a ton of stuff on plumbing from Terry Love and find his advice to be very solid advice. https://terrylove.com/forums/index.php

I just looked up replacing wall hung units and he has a video where he is replacing a 60s wall hung unit

"Replacing an old four bolt wall hung toilet from the 60's? Here is how I replace them with a new Gerber Maxwell Wall Hung toilet. 20-021, Terry Love"

https://www.youtube.com/watch?v=GodNN4Yjygs

https://terrylove.com/forums/index.php?threads/wall-hung-toilets.64084/

Our toilets are sleek & not bulky looking. They’re Toto’s, put in 3 years ago by previous owner ( MCM home ). As Lotifolia suggested, check out their website.

You could do a wall-mounted toilet that has the tank behind the wall. Or, simply get a round bowl instead of an elongated one, which lessens the projection into the room.

Personally, I'd keep the pedestal sink and get a train rack for over the toilet, instead, to house towels.

Atherton, CA New Home Construction · More Info

Unless you are committed to a gut remodel, which could then involve meeting certain minimum clearances and enlarging the footprint of the bathroom, which is definitely not a refresh, you may be limited to this American Standard Glenwall toilet, which is slightly trimmer than yours:

Thank you Jennifer Hogan for the excellent website referral! For anyone with the same problem, it looks like there are only two toilets on the market that fit my old-fashioned four bolt installation: the Gerber Maxwell and the American Standard Glenwall. Neither is particularly good looking, so I think I may just bite the bullet and install a tank in the wall. Toto is clearly the best, but it costs over three times what some of the other sleek-looking brands do. Has anyone had experience with a wall hung toilet that is modern/minimal looking, reliable, and less expensive than Toto?

I am having a wall-hung toilet, tank in the wall installed during my remodel. I did a lot of research and decided I wanted a toto. When my contractor came by and we got started he had me go to where he usually gets his supplies. I told them what I wanted. He later came back to me and said they could not get it. He said Kohler is good - so I let him order it. A few weeks later I had time to do more research. I was not finding good things about Kohler - with a small water spot that leaves skid marks so you have to feel like you have to hand your guests a toilet brush when they want to use the commode. So I talked to my contractor again, and he had me go back to the place he gets his stuff... turns out they CAN order what I wanted. So although it is taking 8 weeks from when they placed the order, I will be getting my toto. I still wish the water spot was larger, however, the toto doesn't have the same complaints as the Kohler did as I researched.