Taking into consideration all the comments and your pictures I might try the following. Put a ceiling to floor pantry cabinet in the spot where the current white base cabinet is, taking out the upper above. More consolidated pantry. I'd stack the w/d on the right of the window wall. Put a bench with a back under the window and run the hoses behind the bench back. To the right of the w/d you could even hang a drop leaf table, that could be lifted into place for folding. Or put the pantry in like I mentioned. Take all uppers down and put in a mudroom hutch/seat built-in, utilizing an opening for the heater below and room for shoes, and having storage above. On the wall with the water valve run a cabinet in an L shape with hanging rod incorporated into an upper set of cabinets if there is room. Still stack the set. The laundry could go into cubbies under the base cabinet open shelving along the water valve wall.

As an update, after spending some time with this over the holidays, we aren't really feeling the various iterations that would allow laundry--it seems like we'd really have to take out the lower lefthand window entirely to make that work and even then the flow wouldn't be ideal. The most viable spot seems to be where the coats and broom closet are if we move the door, so we'll keep that as a future option. That lands us with storage and a baking counter along the lower lefthand wall. (This is what is already there, except right now it's on freestanding shelves and carts.) This leaves a couple of dilemmas: length and depth of baking counter. We have 24.5" of clearance for a counter in the corner before hitting the bottom window (and only 20" if we want to clear the window moulding too, which would probably look better and be simpler). This feels too shallow to be useful for rolling dough, etc., so I'm considering keeping counters 20" deep on the ends with the section under the window coming out to 28" or so. Second question is the length. The window opening is exactly 36", and with the moulding, it's 46" long. So if we stick with stock cabinetry (which I would like to do from a cost perspective) this could be a 21"/36"/21" split along this wall, or a 15"/48"/15" (both with a couple of inches of filler on each end). The first feels like more useful storage, but will it look strange to follow the window opening vs. the moulding? As far as utility, this will all be drawers below with two 18" open bookcases on either side of the window, and much of what will be stored here is moving out of an existing 32" drawer bank, so the 36" seems more than adequate. Two 24" drawer banks would also work. Thank you!

Thank you all so much!! I love your vintage metal detergent sign. The chair is in the room so I can use it when I’m sewing. The cabinet doors open, so there’s plenty of space for my legs. Other than that, I don’t need a rod for hanging clothes. I don’t like to see laundry baskets, so would not add them to this space. I love your question about what make me go “wow!” I like nature (plants, flowers & birds particularly). Carefully chosen decor and well thought out color schemes that are traditional or transitional and harmonious me feel at peace. I really want to put something on the empty wall space, but do not want to clutter it with a bunch of small laundry signs.

Leave the appliances alone. They're fine. Install something like the Closet Maid products. Remove the existing shelf and install two pairs of standards, one pair over the washer and one pair over the dryer. Run the standards from below the appliance control panels to, say, a foot from the ceiling. Attach shallow wood shelves to the standards just above the control panels for detergent, bleach, etc. Install deeper wire shelves above those for other stuff. By using two sets of standards you'll have a lot of flexibility in how you arrange the shelves which you can move around anytime. If you buy the wire shelves at Home Depot, an employee will cut them to the lengths you need.