While I don't have this style of house, I have toured homes with this option and we decided against it because mold/climate issues and because there may not be access during times when the restroom was in use. My husband spends a good hour in the morning in the bathroom (with door locked) and I would not be able to access clothing, etc. Also, I didn't want to deal with times when I would need privacy and my husband might be locked out as well.

When we had our home built did not pay much attention that the closets his/hers were both in the master bath room it is really convenient. Regarding the doors, I opted to have swing in doors in both walk-ins so that they would not swing into the room and that works great. Now many years later and in hindsight I feel the pocket doors would have been better because makes everything more visible. Now the question regarding moisture, yes that is an issue even though I have fans and ventilation. Best solution is to not pack your clothes so tight that they prevent air flow between garments but I feel that is true in any closet. Have a well vented closet system, my preference is from the Container store which allows me to reconfigure any time without making new holes in the walls .Container Store closets

Having MBR located in the master suite is quite common in New Home Construction in New England. The only issue we come across is the deterioration of engineered wood composite product used in closet storage systems. Over time, the untreated edges attract moisture, which leads to expansion and a breakdown of material. We remove many of these systems along with wire systems and in repairing the wall surfaces, we've never found any moisture issues with drywall in closets. Great Closets of New England only uses a 100% real wood component product with maple edging and a veneer surface. Check out our projects listed on our profile. Best of luck in your new home.

Apparently I'm the only one who's had an issue with that. Our master bath is about 3 ft from the master closet. Both have doors and the closet is kept shut tho it has a vent over the door (the bathroom does not). We use the fan when showering and leave it on a good while afterwards but the clothes in the closet do get musty and leather shoes get spots. I can only assume it's due to poor placement of the fan. The fan is near the toilet in the far end of the bathroom, 2 ft beyond the end of the tub. The tub is closer to the door and has a narrow window above it (which is always open.) I replaced the fan years ago to increase the flow but obviously it still wasn't enough. We had the roof redone 5 yrs ago at which time I had them check to be sure there wasn't any blockage in the fan. Some day I'd like to get a vented solutube put in the bathroom by the tub.

I’m hoping his/her closet in the bathroom will no longer be a thing in the newer built homes and will be a thing in the past! I find it disgusting for several reasons, even with the door being shut most of the time. You will eventually be opening it. I Want to buy a newer home, but they all have this feature and I hate it! I do realize that I will just have to build a new construction home to get what I want.

Exactly orec3

I am retired and my husband is still working. Our walk-in closet is off our master bath. Would not have it any other way. He can get up and ready for work without waking me. Ideal! We have a WC in our master bath so privacy is not an issue. I would not buy/build a house without a WC. A great fan system on a timer that we use faithfully and have had no issues of mold or musty smells. A pocket door on closet entrance that we hardly ever use and a second door to the hall so he can exit without re-entering the bedroom.

All makes for a happy marriage!

It's definitely a very bad concept ... "Mold Course Ch. 2 Mold can grow on virtually any organic material as long as moisture and oxygen are ... Molds gradually destroy the things they grow on " Moisture may not show, but it's naturally present and can harm clothes like furs, leather, silk, natural fibers...(Other bad ideas you won't find in traditional homes in Europe but are the rule in U.S. houses especially the "most modern": glued carpets -- that can't be washed & dried in the sun true freshness; glued windows that can never open; and those upside-down-helicopter-like fans instead of proper chandeliers which even the poorest people sport in Europe). However, I've been told such architectural fallacies don't exist in truly expensive U.S. houses built to keep inhabitants healthy and esthetically happy.

Yes we are dealing with mold in our closets now because of leaving closet doors open in our bathroom that lead to mold growing now we have it behind the walls it been growing for six months now we found mold in our crawlspace right below the closet it going to cost us $ 8.200 hundred dollars

What orec3 said is a consideration. Or mainly, think his you use the spaces, like
CDR said. I think blanket pronouncements are not helpful, though pros & cons & experiences help.
What I work think about is “ dressing area”. Do you select your clothes from the closet and bring them to the bed and dress there? Is that where you have a full length mirror? Or maybe everyday clothes are in a dresser in bedroom. Or will your closet be a big walk-in with roomy aisle ? So even the types of clothing you plan to store makes a difference.
Then. how get ready for bed at night. Do 2 people end up using the space at once, bumping into each other?
I have small ( too small) walk-in closet opening from the bathroom which opens to the bedroom. Currently DH is still working and can use the bathroom/ closet to get ready without disturbing me if very early, or I don’t have to use that area until he leaves for work except rarely. There are a few other advantages for bathing & dressing using the rooms instead of separate rooms opening off bedroom. But some of that would be different if the closet were spacious as a dressing area, or if closet were reach- in in a larger bedroom.
Anyway, to me there are more variables in best design including where you can place windows, how it all affects the optimal layouts of bedroom, bathroom layout, closet. Some floorplan designs might be able to achieve “ everything “ but others might need to prioritize or have specific limitations.

Do you people not understand that this post is 10 YEARS OLD?

Even though it is 10 years old it is relevant to me. I appreciate the discussion because good points were made.