Our smallest bathroom has the same layout as yours but it's 7-1/2 feet long. The vanity is about 34". It's a nice size with a smaller square sink that allows for enough counter space. If I had to lose 10", it might be tough. But I do think a 24" vanity for powder room is certainly workable/usable. I would not take space from a 10' x 10' bedroom nor your kitchen.

Thank you, ck_squared. This bathroom is currently heavily used, because our house is 1 level with very tiny spaces. Therefore, it's hard for me to imagine how little it will be used once the family bathrooms move upstairs. Going by current usage, we certainly found it to be on the smaller side, and so made the upstairs baths generously sized. If you can post a picture of your vanity, that would be really helpful.

Our main level hall bath also serves as a powder/guest bath. I think it is 5'x8' (to center of walls?). We have a 30" pedestal sink, with a glass shelf over sink and under med cab.

We have the same layout in a 5x7.5' main floor bath, but no bedrooms on that level. There really is only room for a 24" vanity, which doesn't leave much room for someone to spread out a travel case while getting ready. Our guest bath upstairs is a bit bigger with a 36" vanity. Still small, but with enough room to set some things down. I'd steal some room and go with the bigger size, if possible.

ck_squared - You're bathroom looks great! Where did you get your vanity? Is it 36"? Did you put a piece of filler on the right side to make it passed the door trim? I have a bathroom with the same layout that I'm getting ready to remodel. Thx!

For a full bathroom used by sleep-over guests that will also serve as a public powder room? I think the 24" vanity is fine, especially due to the constraints of the adjoining rooms. I wouldn't sacrifice space in daily family living areas because I think the bathroom space you've designed is more than adequate as-is.

With the bathroom being used as a common powder room, sleepover guests aren't likely to leave their personals on the countertop throughout the day. They'll being things in and out of the bathroom with them. So counter space isn't critical.

If you feel you need a bit more counter space, you could do a banjo countertop, though they certainly have their restrictions and you'd want to address access to the toilet tank innards. Personally, I'm not a fan of them.I'd rather see a wall shelf over the toilet than a banjo countertop.

You can get a bit more storage by adding a 10"-12" deep wall cabinet above the toilet. I have one in our public powder room. The storage space is appreciated.

FWIW, in my kids' bathroom (which is larger than your bathroom in question) they have a pedestal sink. No vanity. For added storage I built a deeper-than-stud-depth wall cabinet, about 5" deep. It's two stud bays wide, or about 34" wide, and maybe 4-1/2 or 5 feet tall. Think of a medicine cabinet on steroids. Because of the depth, it's a couple inches proud of the wall that it's inserted in. I put it in the wall right behind the bathroom door, so when the door is open the storage unit it hidden, but it doesn't interfere with the door swing. The lower shelves hold rolls of TP, paper towels, cleaning supplies, etc. The upper shelves hold my kids' grooming supplies.

They used that bathroom from toddler-hood through college. No tears were shed over inadequate storage.

Small bathrooms can work. Just add storage where you can.

Thanks, ybchat. The vanity was made by Plato Woodwork. Yes, there's a 1" filler piece on the right side. It's actually just shy of 33" (just shy of 34" with the counter).

Mongoct, thank you for sharing! Where can I get this "medicine cabinet on steroids" made? :-) That idea sounds fantastic. Also, I appreciate your insight that it's not the lack of space, but lack of storage that hurts.

Will ordinary cabinetry places be able to make that wide medicine cabinet? I do think Ikea has something similar but not sure if it's meant to go between the studs. Also, if the shared wall has electrical outlets etc. on kitchen side, will that mean that I cannot insert a medicine cabinet in there? Just checking!!

I absolutely would not take space from the kitchen or living areas to make the bathroom larger. I stay with a friend regularly - for years I used a small bedroom and tiny bathroom (graduated to a larger bedroom and larger bathroom when her kids moved out). I didn't stop visiting because the bathroom was small! IMHO your daily living counts for much more. Just make the small space as useable/inviting as possible.

sjhockeyfan325 - thanks! That's very nice of you to say that size did not deter you from visiting your friend! However, that said, did you think that the bathroom was in some way inconvenient while there? Did you think that a tiny vanity made it harder to wash hands and freshen up, etc? Did you feel more space you got later certainly made things more comfortable?

Some redesign on this plan will take place, notably guest closet will take some portion of current entry (which is rather large right now), so we do have a choice of having a larger guest BR, or a larger guest/hall BA. I do heed the advice though, that under no circumstances should we let the space be taken out of the kitchen -- I agree with everyone's advice here that what will be used sparingly should not come at the expense of what is used every day by every member of the family.

Thank you all again! After we go through next iteration of the plan, I will post a follow up. In the meantime, I would love to hear more perspectives if there are any!

If it's just a guest bathroom and I wanted to save space, I'd do a 3/4 bath with a corner shower. As my parents are approaching 70, I'm very aware of bathroom safety. The bathroom layout you're considering is a very standard layout, but the tub and not having the toilet next to a wall are not the best for folks with mobility issues. You could probably have a 30/32 inch vanity in this configuration:

You know, in Europe you'd have a powder room separate from the tub/shower room.

Benjesbride, you brought up a good point. Our bath will have a very small curb and shower, not a tub in this bathroom. We currently have a bathroom with similar configuration and it works for all of us, not just seniors. So the downstairs bath will be 3/4bath. (which, in local real estate speak, is Full Bath).

Nosoccermom, I'd gladly have a separate powder room if I had the buildable square footage for it. It just seemed like a waste of space and money given our various building constraints and expected usage.