I imagine plenty of toilets are off-centered by that kind of amount, given that joists are rarely exactly where you might wish. I usually put my bathroom trash on the larger side. :)

All that matters is code.

Code is 15" , to an obstruction/that's what you do. Code doesn't mean the most pleasant, it simply means no LESS than.

Your drawings show "pre fab pan" meaning a shower.

You are asking bathtubs, Which and which in each? Because if one is a SHOWER you don't want less than 36 inches width in 99% of all cases.

Whether the toilet is centered is a NON issue.

I would drop the ceilings down to nine feet MAX

Both rooms are way too small to support a ten foot ceiling. Its an elevator shaft: )

Thank you acm and Jan Moyer. Sorry, looks like I attached older pic, I have bathtub in both bathroom, not shower.

How many tubs in the house? No more than maximum two is needed or even desirable. Children grow.......guests are not children, usually.

4 tubs, 1 in master, and other 3 in kids bath.

4 tubs! That's a lot. Is this bathroom an en suite or would guests be using it? I would make it a shower using the 36" dimension. The location of a toilet is often not perfectly centered between a tub and a vanity so I wouldn't worry about that.

Good luck!

Far too many tubs! You will end up ripping.

Yours and another great.

Yours and two more is a stretch.......

If you have eight or nine baths? Up to you. But a tub in every kid room is very short sighted

You may want to show ALL your plans, up and down.

I would not be concerned about an off-center toilet. There is no need for it to be centered and no design principles will be transgressed if it isn't. I have four bathrooms, and only one toilet happens to be centered because it is tucked into a 32" wide space with a pony wall on one side and a full wall on the other. My other toilets are just fine being off-center, and having a larger space on one side means I have room to place a waste basket without it being squashed. As long at the toilet has proper side clearance, let other considerations drive the design of the bathroom. Toilet space symmetry is way down on the list of things to be concerned about.

Didn't know there is a rule about "too many tubs." We have three and never considered ripping any out. And as others have said, worrying about an off-center toilet is a waste of energy.

And btw, do NOT post all your floor plans unless you want to open up a can of (design) worms.

Thank you all for taking the time to provide your feedback! So, looks like 4" offset is not that bad. One question I still have, do you think 36" tub is too big for 5x9.5 bathroom? In one bath I may have to go with that size.

I would not put a tub that wide in a space of that size. I also would remove some of the tubs in the house. That is a lot of tubs.

If the 36" tub fits and allows the proper on-center distances for the toilet, I don't think the wider tub will have any negative effect on the size of the bathroom, because it is at the "end" of the bathroom, and it may be a more comfortable tub for someone to use, compared with the narrower one.

If you do not have a walk in shower, I would probably replace one of the tubs with a walk in shower of the same size as the tub. It's easy enough, doesn't change the plan, and may be useful if someone breaks an arm or a leg, or has trouble climbing over the rim of a tub. Or standing in a tub to take a shower: sometimes the bottom of a tub is not flat enough or wide enough for someone who has balance issues.

Actually, I think it is good that you have 4" extra between the tub and the toilet. It gives you a bit more room to dry yourself.

Assuming you will have a shower curtain on a tub, you can easily have double hooks or double rod and put a decorative curtain on the outside of the tub with a liner inside. You could keep the curtain to the left side of the tub and it will fill in that 4".