Could it be redesigned with separate entrances by putting the door elsewhere?

How many other bathrooms are in the house?

I think a lot of this depends of how many people are in your household and whether there are other bathrooms or powder rooms in the house. I don't think I would feel comfortable using the toilet with someone so closeby in the other bathroom. But if it has worked for you...

There's another bathroom with separate tub and shower. No room to move the door. The kitchen is on one side of the wall and a bedroom on the other.

Taking a bathroom out of a house is a bigger decision with lots of things to consider - how many bathrooms total are in the house? How many bedrooms?

This looks like a powder room with an entrance into a main bathroom (but the main bathroom has a toilet of its own). Is that the case? And there's no other entrance into the main bathroom without going through the powder room? So yeah - need a larger floorplan to make a call on this one.

Well two bathrooms accessed by one door, if I understand you correctly, isn't really two bathrooms, it's one compartmentalized bathroom, so in a sense, you are devaluing your house by one bathroom regardless, from a real estate perspective, I would think. It's like houses with shotgun bedrooms. The walk through bedroom of the pair often will not count as a bedroom because it has no privacy. It's a glorified hallway to the other bedroom.

Is your child in the master bedroom?

Unless you're in a rare situation where you have too many bathrooms, It would make the most sense to squeeze in two separate bathrooms. If every thing is just right, maybe you could create two separate bathrooms while keeping the same waste lines...

Why couldn't you close the access between the two bathrooms?

Is there a way to reconfigure the sleeping arrangements? Reconfigure some other part of the house to change how the baths are accessed?

If that doesn't work, I would look into converting the space into two full baths.

Another idea is to replace the toilet in the powder room with a sink (double if it fits). That way, people can still wash their hands or teeth while someone is using the full bathroom, and these activities don't require privacy.

Someone turned a closet into a bathroom? That's the oddest thing I have ever seen. No way is it functional to walk through one bathroom to get to the far one. Resale would dictate keeping two bathrooms at all costs. BUT--well not like this. The best solution is find a way for both rooms to have their own access and close off the doorway between them. Hopefully the access for at least one of the bathrooms is in a hall so guests can use it w/o schelping through a bedroom. That is assuming you only have these two bathrooms? If this is bathroom 2 and 3 them maybe lose one for a larger single bathroom.

I need a floor plan and IMO to scale showing all the doorways where they lead any windows and the way these space relate to the whole house . I need context for sure.

The bedroom that connects to the bigger bathroom is the original master. I'm not sure where the powder room fits into the original floor plans. The previous owners added a diningroom, new master bedroom and new master bathroom. Making it 3 bedrooms and 2.5 bathrooms. There are five of us. The hallway entrance is a pocket door. There is a kind of nook area on the kitchen side of the wall that can possibly be used. It's 13 inches from the wall to the edge of the doorway. We're not opposed to just having two bathrooms, but we didn't want to possibly mess up the value of our house.

You should consult a realtor, but I think eliminating the powder and just expanding the main bath as your hall bath with a larger vanity will add more value than any funky layout to preserve 3 toilets.

I think you have the right idea after looking at your floorplan. Removing the door from the former master, leaving the tub and toilet in the same place and taking down the wall between the two bathrooms will allow you to have a nice 5 foot vanity.

A big improvement.

If you're open to it, you may be able to reconfigure the spaces to allow for both (depending on the size of the original primary and the location of the third bedroom). Consult with an architect.

If you are completely redoing everything could you leave a half bath attached to old master and full bath to hallway? i could see current set up being useful for young kids but probably doesn’t add much for resale.

I can't see keeping the bath off the hall. It is too small. 3 X 5 feet is not big enough for a powder room. Your other bathroom off the old master is probably a minimum size, but big enough. I think the 5 foot vanity is much nicer than a cramped powder room with a pocket door.

Maybe if the powder room was 7 X 3 feet it could work.