Neither plan shows a sitting room. If you want flexibility then you need a sitting room/living room. If the laundry is for the main house as well as the ADU then that area should be a Foyer with a door into the ADU as well as a door and not a French door into the main house. You need separation to the ADU. Can the bathroom location change or is this already set? A bedroom 10x12 with closet and a small den/bedroom 9x10 with a closet would be my choice. You always have the option of doing a sofa bed for an extra guest in the living room or a kids cot in the den. This would then work for a couple, or couple with a kid or a single person.

Neither work and why on earth a massive bathroom in a small space . IMO you need to first decide what you will use it for then plan the layout. Renting it out it s needs are much different and even the type of renting since then you have to make sure you can use it for full time rental too. a 10x11 bedroom will not be big enough to have even a queen bed comfortably and plan A where you walk throughthe closet to go from kitchen to bedroom is not a good plan and plan B not really workable for a rental at all. In fact a long term renat needs an actual kitchen . The whole W/D set up not workable either .If an elderly family member rents the bathroonm should be made to at least accomodate a walker and Ideally the whole unit should be ADA compliant. So my advice figure out what you will use it for .

Agree. You need a sitting space. That kitchen right outside the bathroom in your option is a really bad idea. Where will people eat the food they cook? On their bed?? You should do a one-bedroom with a sitting space and forget the 2 bedroom idea.

I think you need to decide if it is going to be a rental or a family unit first. Those can be two very different living situations, especially with just a french door seperating the unit from the main house.

I also think that of the two, the second one is slightly better. But I would make that a one bedroom- keep the one on the right and keep the whole of the closets and faced into the one bedroom. Leave out the wall and french doors on the left bedroom to open it to the kitchen area so it can serve as dining and sitting space.

I don’t think you need to decide if it’s for family or a rental. Both groups would like a room to sit and relax in. If they are family it is to get a break from the busy aspects of family gatherings. If they are renters it’s because it’s their only option. Shrink both bedrooms. They need to accommodate beds, dresser, that’s it. Bathroom can be smaller too but not too much as you do want people comfortable.

I agree that there's no living area nor is there a comfortable place to eat. There's also no other storage but a bedroom closet and there isn't even one of those in the 1st plan. Whether for a rental or a relative, a better, bigger kitchen is needed. The laundry room has a lot of wasted space. I think you need room for some kind of pantry closet in there as well. Where would anyone store paper towels, tissue, cleaning supplies, mop and vacuum? There's no need for a tub and shower in the 1st plan and there's no storage in either bathroom.

Neither , for many of the same reasons others have stated. I think you need to go back to the drawing board.