Girls or Boys?

If you’re not going to have the extra door, consider flipping the layout with the vanity on the door wall then adding a separate shower. Leave 36 inches or so for the toilet, 66 for the tub and shower would be approximately 32x46 (4” walls, 4” from door opening). Or separate the toilet with a wall and add a separate sink… that would block the window, but you could use a frosted glass door or don’t bring the wall to the ceiling. Plenty of space left for tub, vanity and linen closet.

Since you have 3 kids who will share this bathroom, I would look at doing something like the plan below.

This will allow one kid to use the toilet or shower, and still let the other kids use the sink(s) to brush teeth, dry hair, etc.

I would consider adding a knee wall next to the toilet for privacy or a tower cabinet.

If you close off the jack n jill door, you could set up that space for laundry bins, so it's all collected in one location.

I think the idea of separating the sinks from the WC and shower/tub is a great idea. I might consider a pocket door to the hallway, which will make the space more spacious and allows easy access to whatever you would put behind the swinging door.

I’ve never quite gotten the tub/shower and toilet in a room together, within the bathroom. I don’t think any kid wants to be on the toilet and hear their sibling come in to brush their teeth.

My kids have double sinks in their bathroom, and never used the one closest to the door. Ever. What they really needed was to replace one of the sinks with more counterspace and second stack of drawers.

Using Chispa's idea, you could put a small pedestal sink in the toilet area and have just one sink with a large countertop where the double is now. You could add a walk in shower across from where the double sinks are now. That would allow someone to be in the toilet room (like your daughter) using the sink and a mirror in there with some privacy from the boys in the other area. It's probably doubtful all 3 will be in there at once as they age, but a shower enclosure with a curtain would even allow both sexes to be in there at once.

Moon to earth? @Joeylala

I won't comment on this thread, because you already have this other below, and five ways to do it.

https://www.houzz.com/discussions/6511335/master-bathroom-layout-help#n=13

I shall ask....

What is your budget? Do you have over a 100k you want to throw at your "Not forever" home in two baths? : )

AT the very least, which bath now and which much later? You noted the master bath shower was "falling apart"?

You still have no pictures of the Master Bath , for the link above/ current condition.....no drawing of the entire suite.

It sounds as if this home is very new to you, you have little kids, and I just got the feeling you are wee bit ahead of yourself?

What would help you most?

Post a layout of the entire living floor, I assume both baths are on this floor?

Neither bath lives in isolation from the rest of the house. The"Not forever" house.

I lied... I will comment

Go back to your primary.....use the tub layout

Swim the tiny littles in your tub. A kid as young as four can use a shower!

School years?

CHILDREN shower or bathe at evening before bed. Eliminate morning chaos. It's tooth brush and face wash and hair and GO to the bus

As to Jack and Jill? The whole concept is overrated cramping, doors banging thus.....YOU SHARE. Boys together, and daughter alone as they GROW.

Make ONE bath with room to move and a ton of storage. You have a powder room? It's a toilet for anyone who can't wait.

GET A DECENT bath. with a shower. The only tub in the house need be y.o,u.r.s

The other of the three threads......

Go back here to Primary

https://www.houzz.com/discussions/6511335/master-bathroom-layout-help#29617261

Do this

I always wanted the following with my 4 kids - huge long shallow sink (like at a camp) with 2 faucets. I could 1) bath a baby 2) the water from the kids would not get everywhere.

Ever wonder what you can't see in a remodel? Me too...like what's around the bath in question?

A crummy 26" extra would be nice. : )

I would get rid of the two doors into bedrooms, making this into a regular hall bathroom instead of a Jack and Jill bathroom. Kids often forget to unlock the other two doors when they leave the bathroom.

Keeping extra toothbrushes, toothpaste, and combs in a powder room can help with traffic jams on school mornings. All you need for toothbrushes, toothpaste, and combs is a medicine cabinet instead of a plain mirror in the powder room.