Double check what code is for ceiling height.

All set on ceiling height and egress windows, but thanks for mentioning!

No windows on the sides? I rally think you need more windows.

Whoops! I think those were on another layer when I took the screenshot. Here's the correct layout (and the second image above shows the windows on the gable ends).

I'm also debating whether the back windows should be TW24310 (2'4" wide by 3'10" tall) or TW2642. I like the idea of bigger, but worry about furniture placement as the sill height decreases.

Thanks, cpartist! I appreciate your input. I feel like the hallway is exceptionally short, but I guess it's better to have more room for door-swing into the bedrooms? The longer windows would give me a sill height of 27" vs 31", which means that I couldn't fit a desk beneath if I wanted it there. Though I think I could raise the windows a tad so that they are 28-30" sill height, but don't align with the door height. Would it make more sense for that height to match around the room?

One thing? I might consider flipping the tub and the linen closet in the bathroom. This way you don't walk in with a large bulky area right as you walk in?

So funny you say that! I just swapped them. I grew up in a house with the first layout, but I think having the space for the doors across from the toilet is much better! Or....should I put the shower and toilet on the same wall, and linen and vanity opposite? Toilet must stay where it is due to plumbing woes, but I think the others can switch.

We have two bathrooms in our house with the layout you have shown, but the linen closets each have a single door. One has to close the bathroom door to open the linen closet. I don't find it a big deal, but I've been living with it that way for 29 years!

I would put in a single sink, to provide more storage and counter space. Kids rarely use the bathroom at the same time anyway (at least my sons never did).

I wonder why they do it that way? Seems common, but also a bit annoying! I'll be thinking about the sink situation for a while. I would like 2, and they will have extra space in the linen closet, but I may not want to spend the money on extra plumbing. We won't be doing the bathroom for another few years, but I want to have it generally laid out before we start.

A nice big linen closet like that provides a lot of storage - but it isn't a great place for things like toothbrushes, combs, nail clippers, hair ties, jewelry, razors - all the small things that work really well in vanity drawers.

I do not recommend a ceiling less than 8'-0". There are many issues with the type of addition/remodeling you are considering. I do recommend finding a local architect to assist you in getting what you need.

Mark, we have already worked with a local architect, and we are comfortable with the ceiling height. Our first floor is only 7-9, so I feel like it will easily work for two kids’ bedrooms. Thanks for the thoughts though! We live in a desirable location north of Boston, so these types of homes and remodels are very common.