thanks to all who have posted so far, especially Eric. We can probably save/budget down the road for a kitchen redo, or do part of it ourselves. Additions would be a little harder for us except finish work (floors, tile, etc. Can do drywall even but would need to find time to do it). What that kitchen has is a U shaped layout, not too bad except there are overhanging cabinets between a small dining/family space and the kitchen. It's a counter/pass through kind of setup where someone can sit at stools and talk with the person in the kitchen....except the cabinets hang down so the person in the kitchen has to look under them. We would likely tear those out and relocate the stovetop to the perimeter wall and make that pass through an island. Then that entire space could become kitchen/dining. It is possible we could still move out a wall on that (kitchen) side of the house down the road too, we are in Hawaii so all the construction costs are much, much higher than mainland. So jealous of all the posters here who can put on a large extension for less than 50K. Plan A or Plan B will cost us about the same. We don't plan to sell and move anytime soon, but should we need to we're leaning toward sq. footage instead of just extending current bath and upgrading the kitchen. Our neighborhood is about 20 years old so people are beginning to redo those rooms as the fixtures and appliances are ageing. We redid all the appliances about three years ago with stainless finishes, new faucet/sink, and redid the countertop Corian, so the kitchen is livable - just need to clear out some clutter and make smarter usage on available storage space. We could paint or restain the cabinet doors to freshen it up. A few neighbors are creating the "big bang" kitchen now but I'm not certain a 70K upgrade will improve the value that much as a new neighborhood is planned about 5 miles away within the next couple of years. Would we love to live in a "WOW" kitchen, of course. But as with most people we have to make a decision on where it is best to spend the money for now. We could feasibly also add on a 2nd story in future years, but we prefer the single story and if we age-in-place as planned, the new bath will include wide accesses and no-curb shower.

Looks like bullnose on an outside corner? Tough to say what would structurally stress an area like that. A shower rod? Good news, it's on the edge of the installation. Removal and repair would not be difficult. And the location minimizes the effective compromising of any waterproofing membrane that might be underneath. Often times cracking of tile occurs on joints. Joints in framing. When new framing settles, or where new framing meets old. Differential movement within the wall. Near the top corner of an exterior window, etc.

I think 10ft is too narrow for a master bedroom personally, however you do have that sort of pinch point in the existing bedroom as well. I think I would consider moving the bathroom to the outside corner instead of the closet and have a walk through area for his/hers closets and you can have more light in the bathroom at least. Also would be closer to the dresser when getting ready than current arrangement. It would be further to walk though to the toilet, but less noise to travel in the middle of the night too. All trade off only you can decide on. If one of you would love to use the tub on a regular basis then I'd keep the tub. Yes more expensive, but if regularly used and appreciated then it might be worth it. The other tub seems like the kind that is great for bathing little children and not for an adult to soak in. Only if you have plans to remodel that room and add a deeper tub would I skip a tub in the master.

New additional bathroom... Farm house/cottage design Sun porch renovation... open raftered ceiling