Where do you live? It must be warm if you are thinking of having the shower exit to the outside. Is there a particular feature you would access from the shower? It seems impractical to me.

The bathroom plans seem very large to me. I also think the showers in your last 2 plans look too big. Would they be 10 feet long? I have a 3x5' shower and it is plenty big enough for me, as a single shower.

id ask what do I want from this space.

its late, but I'll look at this tomorrow and hope others comment too.

Hi Enduring, thanks for your thoughts. I do live in the northeast, so we wouldn't be using the screened in porch about 3-4 months per year. The door would go out to a hot tub. The more I think about it, the more I am leaning away from this idea though, as it would create a privacy issue that is no concern for me and my partner but could be problematic for a family who would live here in the future. We'll be here for alert 5-7 years.

What do you think about the other plan, without the door? I want the bathroom to feel spacious but still well planned.

Is the 10x25' rectangle on the left of the plan the new addition? Is the other part of the plan existing?

I think the spaciousness could still be accomplished but that shower is very large IMO. Some people have commented on GW of feeling cold in a doorless shower or one that is too large. The area just cant get heated up. But I don't have direct experience with that. I've seen recommendations for minimum sizes for doorless showers, and 5x5 rings a bell, but don't quote me on that.

Several things about your plan is that the elements look spread out, and don't relate to one another.

Vanity. Situate this as a lovely focal point.

Toilet. I would like to see a pony wall around the toilet on one side, somewhat isolating it from the rest of the room. You still could make that area totally enclosed but I personally like some open area for toilet. I love having a sink near the toilet for hygienic reasons. It could be a powder room type corner with in the larger context of the bathroom. My carpenter built his own home several years ago and he placed his toilet so it looked out the window. Raehelen who used to post here showed her toilet with a side window looking out to the beautiful flower garden she had.

White Rock · More Info

with sink near by, could be smaller space. But kind of powder room vibe:

Lightning Bug · More Info

Tub. Situate as a lovely focal point. This could be 45degree angled at the corner where the windows are. It could be nearer the shower. Some have made showers with a tub within the shower, so that you walk through the shower area to access the tub at the far end. Could be lovely and functional.

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Bathrooms · More Info

Farmhouse master bath · More Info

Spaciousness. You could cluster the bathroom elements closer together and have a sitting area in the room with a fire place. I think sitting furniture could be very nice. With a fire going that would feel nice in the tub :)

Transitional Bathroom · More Info

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The Uplands, St Leonards on Sea · More Info

Laundry. I see you removed this feature. Laundry if you put it back
should be against a load bearing wall rather than in the middle of a
joist span. It might bounce like a trampoline otherwise. In your
original plan if you go with that I would have another door from the
closet to the laundry room so you are efficient with clothing
management. You might need to do a stacked set in that case. But the
placement of the set against the outside wall will be more stable and a
straight shot for the dryer ducting.

In my larger bathroom I did 2 years ago I put in a small laundry setup along with a shower, vanity, and toilet. The space is 8x10. I am happy with my space. Trying to find a small bench to fit in there though, so I can sit down instead of sitting on the closed toilet lid.

Wow--thank you so much for all the food for thought. Based on your suggestions we laid out a modified plan and I'll post it soon. I'm traveling now and can't upload drawings or type much. In particular, I really appreciate the idea of the pony wall around the toilet because I'm not a fan of the enclosed toilet room but still like a bit of privacy, and the idea of keeping s sink close to the toilet because that just makes so much sense. Thanks again for your suggestions, I'll update this tomorrow or Monday.

Also look at this thread:
What was Your Best Bathroom Remodeling Decision?

And a more recent thread:
What was Your Best/Worst Remodeling Decision?

some things I thought of over the last few days:

The bathroom is more complected to build than a kitchen in my option, because of the techniques involved with installing the elements. Of course layout and flow are considerations just like a kitchen. But in a bathroom there is the toilet and shower that can get difficult. If these two features have problems, you have problems. You are constantly managing water in a variety of forms, liquid and vapor, but hopefully not ice, lol.

As you probably are well aware form follows function. Decide what you need to have the bathroom accomplish. I see that you have a walk in closet. Some people do put them in the bathrooms. I don't know how that works. There are several articles in the Houzz side of this site that are written on closets. They are informative and inspirational.

I would try to have a W/D somewhere close to this area of the house. There is no reason you can't have 2 sets, one near your bedroom and one in the basement, or were ever. Over on the Laundry forum there is a lovely example Linus from Sweden posted on their laundry "rooms". Here is a link for fun:
Showing My Laundry Room in Sweden

1) where are you putting exhaust fan/s? Besure to have enough gap under the door for "makeup air" so the fan can work effectively. You'll need to calculate how much ducting you'll have because that will impact what CFM fan you'll use. I call Fantech and they helped me figure mine out. They are reportedly good. There are other companies too.

2) Electrical outlets. I have one by my toilet at about 12" off the ground for an advanced toilet seat which, if you have a choice, is a must. Also electrical outlets within the vanity to accommodate hairdryers, etc. I have an outlet in my medicine cabinet too. I also have one in my small laundry surround so I can use an iron with the small pullout ironing board I have.

3) Floor warming wires, for the winter. You will love it. It only goes in open areas. Be sure to run it under the toe kick so you don't get cold toes. It does not go under the tub, unless they've changed specs. It is to be safely margined away from the wax ring of the toilet rough-in. Get the 240v, and lay an extra thermostatic probe under the tile, in case one goes bad, you'll have a spare. It just gets wrapped up and tucked in the box, ready and waiting for the first to fail.

4) If you are tiling your shower I would recommend porcelain over marble or other stone. The new porcelains are gorgeous and do not absorb moisture. Natural stone will take more upkeep. I used epoxy grout in my bathroom. It is not porous. Others have used cementous grout without problems. I would not use HD standard Custom Blend line for anything. People have had quality control issues, with color, etc. Laticrete is a great brand. There is Bostik that is very good. Mapei is good to I believe. If you have any detailed tiling questions, they can be answered by some on this forum, but it seems those members are not frequently posting any longer. They stop in from time to time. Go to the John Bridge Forum, for tile help professional scope. Be sure to know how a shower is put together from the studs out. You will need to know this! This is the biggest issue I have noticed on GW. People are always posting about dysfunctional showers and the poor tilers that do them. You need to do this homework before you hire it done or your GC hires it. Do not let work continue that is not to code or not to what you know to be standard work in the tile industry. There are standards and they need to be followed. You don't want to have to tear out a shower because of piss poor workmanship.

5) Benjaman Moore Aura Bath and Spa is a very nice paint. I've really liked the matte, velvety finish.

6) Plan your vanity to do what you want it to do. I keep my underware in mine. with my W/D being in the same room it made sense. DH gets his put in there too.

Here is a link to my recent reveal that is long in coming, as the bathroom has been done for 1.5 years.
My West Bathroom Reveal from Project in 2013-2014