I think an ideal place for a washer/dryer is close to the bedrooms and bathrooms -its much more time efficient. The majority of your laundry goes to the bedrooms and bathrooms. As you age, its also easier on the arms and legs. Since you are building a new home, why not put a a washer/dryer behind closed doors in a kids bathroom? If you are worried about noise, put a small inexpensive stacked unit there for small kids loads - leave space to later put a full size unit in if you decide you like the set up. Build a normal laundry room in the basement. If you hate the laundry upstairs - you can turn that space into storage - no mater how much we have we always need more storage. If you love the upstairs laundry - then you can bring your larger machines upstairs and the smaller ones downstairs. I think if you can give yourself options you will be happier in the long run. Its harder to change things once they are built. Take precautions and install the recommended floor drain. If you don't want to purchase two washer /dryers start them upstairs and be prepared to move them if you are unhappy into a space downstairs that is already set up. Having the washer/dryer near where your clothes and towels are stored will make your life so much easier IMHO.

I speak from experience when I say, the 8x10 bedroom is going to be narrow. If you could make it just 1 foot wider (at the expense of the other bedroom's length), it would be better. 10x would be even better/optimal, imo/ime. If you turn the hall bathroom 90* so you can move the wall between the 2 extra bedrooms to get a 10x wide bedroom, I think it would be better. You can rob the space from the master to be able to turn the hall bath. You could also move your laundry and take some of that space to better allocate space to the bathroom so you get 2 decent sized extra bedrooms. Currently, there is too much unused space in the master, for my liking, with such a limitation in that other bedroom. (though, something is off, now that I have typed all that and look again). You have a 10' marking on the master bedroom side that cannot be 10 feet if it is drawn to scale. Please verify.

All these notes are based on the second version of your plan. The second version of the master closet is really not much smaller in functional space than the first...the first plan has the entry incorporated into the closet plan, but it is not useful space. What I would consider is giving up two feet of space in the office, and creating a wall of storage between the closet and the office. I'd divide it into three sections... the two on the ends would belong to the closet, and you could build in shelving for shirts, shoes, sweaters, purses...all the things you don't hang up. The center section would belong to the office, and would provide a storage closet for that room, which I don't see on the current plan. Since that's the bearing wall of the house, you need load-bearing vertical supports in that wall anyway, so dividing it between the rooms would allow for that as well. You could include alcoves high in the wall for luggage. Your hanging clothes would run around the other two sides. Then you'd have room in the center for your packing counter. And in the master bath, if you make the laundry room wall into your linen storage, you can eliminate that linen closet, put the door to the john where the closet door is shown in the plan, rotate the shower 90 degrees and stretch it along the wall that now shows the entry to the john,stopping about 2 feet short of the end of the wall to keep the entryway wide enough. Its door would face the laundry room wall. Then you'd get your tub and your big shower, you'd have room just inside the new door to the john for a small hand sink, you'd have even more knee room and privacy in there, and you wouldn't have to go back into the bathroom to wash your hands.

Sounds like a good idea. Now, consider one sink instead of two. They will almost never be in there at the same time, and even if they are they'll be bumping elbows as they brush teeth and mousse hair. But they do each need their own storage space for orthodontia and "health and beauty aids". So one sink gives them more counterspace and more drawer storage, one whole bank each. Would you have a window? Even a high window for privacy over the toilet would still bring in natural light. in bedroom 3, consider either taking the closet to the wall, or swapping the bookshelf/desk space to the other side. I worry that tucked in the corner a desk will become a dumping ground, and bookshelves would be tucked deep, not so conducive to book-browsing.