I think your plan has potential, depending on your priorities and the conventions in your neighbourhood (how quickly is resale an issue, what are the local expectations of a MBr, closet, MBa, etc). It looks like it's time to do a little research/thinking. Your current 5th bedroom looks like it's 10 ft deep? Do you want a 10ft deep full laundry ROOM? Or would a closet with a stacking unit be enough? Do you need a walk-in closet? If so, what kind of dimensions are you imagining? In our current reno, we've decided to forgo a walk-in for a wall of deeper-than-standard closets. If you did a run of closets 3' deep by 14' along your back wall, you would still have a 14x20 bedroom, plus what would be more than enough closet space for us. Alternatively, how big is your current bathroom, and how much bigger do you need it to be? If you're only trying to make space for a separate shower, taking over the closets that surround the back of your current bathroom might make enough room. You could then put the laundry in the 5th bedroom at the other end, backing onto the hall bathroom, and this might leave you enough room in the bedroom for your office, and let you keep the closets you have. Even a 9x10 room is likely big enough for your small office, leaving you 5 x10 for your laundry... (unless the closets are part of your 10x14 dimension?)

Just a couple things I'd like if I were doing this. can you straighten the wall with the door? I'd bring that wall straight and enlarge the bathroom by that foot. The shower for me is too long at 7', unless you will be double showering. I have a 5' long shower and that is plenty. I have French glass doors on my shower that are 28" each wide and span the 58" space (60" rough space) nicely. You may not even need a door on the size you are working with. I would want a small sink in the toilet room. I don't know why that isn't done more often. I recently actually saw a commercial install done this way with their 2 toilet stalls, and a sink in the main room. "Thats what I'm talking about". Put an outlet in the toilet room in case you want an advanced toilet seat. You are probably aware, and may currently have,. tempered glass in the window at the shower/tub. You might need a louvered door on the laundry closet, so makeup air gets in easily for the dryer. If you are doing the whole room, I'd like to see what it would look like with the vanities at the window wall, and the shower and laundry at the wall where the vanities are now. It might not be possible, considering the scope of your project. But it would be fun to draw it up just to see. This plan would shrink the shower, and may not be what you'd want. With a smaller shower, there will be less issues with planning for doors. The window wall could allow for a full vanity with much more storage and counter space for folding. Also you could put in a pull out draw for hanging things, and a pull out draw/ironing board. I also don't like the shower in the location, because thats what you see when you walk in the room, and the person showering. The window in the shower blocks access to the woods and window IMO. if it was part of the counter, you are closer and feel more connected to the woods.

It’s a weird (tract home) layout. The interior laundry room dimensions don’t add up to the width of the wall between the laundry door and pantry. But there is 40” on the outside wall. But if I come in from the kitchen side, I worry about matching everything up. The pantry isn’t small- and the shelf heights work pretty well for what I do, and plan to do. I just tend to do a Costco / large grocery trip every 3 months and then weekly or every 10 days for fresh foods. (Pre-covid) and my pantry looks a little less organized as I’ve had to make do with what’s available. Also, the shelves have started to sag as I store many cans on them, so I had to move those lower to the ground. Ideally I’d have them higher for ease to grab. But that’s about 80lbs when all my boxes are full. I reuses the boxes from Costco and while it looks like I have a lot of corn, each box has different stuff. The paint on the shelves is also starting to wear from pulling in and out my flour / sugar containers and cans. One shelf (straight in) is about 26” wide and the one to the right with all the cans is about 35”. We have 10ft ceilings and I can put 3-4 more shelves above- which will help with storage. But since the lower shelves need work- I’ve been slow to add the others as I dont want to spend the time and money to add them, then need to redo the lowers. The weird corner wall- behind that is out water tank. I got a rough quote of $5500 to put in a tankless heater which would free up that space and then square it off (not included with the tankless price). I do agree my laundry room is overflowing with stuff and along with stuff I don’t use I have some things in there that should be elsewhere. I typically have 2 bins on the dryer. One for my daughters clothes and I don’t use paper towels (except for a few things- maybe 1 sheet a day) so I’m always going through my dish towels and hand towels and set them in the laundry to wash. Since putting in the shelves in my laundry room, my vacuum is no longer wall mounted so that stuff just gets thrown in there. One step forward 2 back. Absolutely getting rid of stuff is important. I have a huge kitchen, but some things are inefficient (super deep shelves that are only 10” wide under my island). I’m not necessarily looking to be able to put more stuff in, just make it more functional to use it. Whoever pointed out the added depth of the wall thank you, I didn’t know that would be the case. Overall it sounds like my area COULD be better designed, but I should audit what I’m currently doing. @KW- thanks! You commented on my master that I’m working on. My husband (who never suggests home upgrades) said “we should put a pocket door there” and I jumped on it. I’m still online shopping for ideas on that. And appreciate your input over there! And while overall I suppose it’s not a tiny laundry room, I did shoot with wide angle - and having the door off makes a big difference. I’ve since hung it back on.

I have a similar sized laundry room. The supply vent is in the floor approximately 2-3 feet from either wall. The problem it is constantly being stepped on and collects debris. Other than that is vent works fine. I suggest installing it away from the traffic flow as much as possible.