I like it too, very similar to what we are doing in our kitchen remodel. Your food will flow from pantry/refrigerator, to sink, to prep space, to stove. Classic "ice-water-stone-fire" (see thread if you haven't yet)

You might be happier with the dishwasher on the other side of the sink, between the fridge and sink. Also, I cannot tell which counter the microwave is going under. I'd suggest the island, on the end near the fridge. Kids as they grow, do a lot of fridge/pantry-to-microwave snacking during the afternoon (ask me how I know) and best to keep that out of the area where the "real" before-dinner work gets done!

Finally a 48" range is big. I know you have 4 kids and do a lot of cooking but you will probably be fine with 36. And venting a 48-incher requires a beast of a hood, if you are going to do it right.

Thank you @RappArchitecture & @gardengrl66 z5

RE: 44" aisle - I agree, it'd be better wider. I'm having the architect look at bumping out the left wall (enough to add cabinets on the interior wall), but I'm not optimistic that moving that exterior wall won't destroy our modest budget.

RE: DW placement, I had wanted full access to island cabinets for putting dishes away (no upper cabinets), but I could see how having the DW next to the fridge might allow better flow on the range aisle side.

RE: microwave - yes I think island side closer to fridge would be fine. Otherwise far right corner along top range wall would be my other preference bc it's out of the way over there.

RE: 48" range. I know it's huge. I'm enamored with having 2 ovens though. I hadn't considered the venting aspect, thank you for adding it to my list for consideration.

Any other thoughts?

You know, the other way to have two ovens is to have your microwave be a combination oven. we have a Miele but folks around here also like the Advantiums. Although it is not a full size oven, I don’t think the second ovens on the 48 inch ranges are either. As I don’t use two at the same time all that frequently (but am very happy to have the option when necessary) it is a good way to have flexibility without sacrificing space.

Above all else, I would suggest finding a kitchen style that reflects the era of your vintage house. Stay away from today's "current" trends. This way you will have a kitchen that remains true to your house and will stay in style.

I really think you should challenge your designer to do better than this layout. No matter what, your island will feel offset from your range or your range will feel offset from the room. Not meaning to seem rude or condescending but I noticed it immediately, this is a design mistake from a designers perspective. You simply cant have an L shaped kitchen with balanced windows range and island. It will always be out of harmony. Pic for reference(Please note I flip flopped the fridge and put a blind corner in instead of a lazy susan:

OTOH many feel that symmetry is overrated and that function is the primary consideration. I think only you can be the judge of that. But if you love symmetry then pay attention to it or it will bug you forever. If you love function then the lack of symmetry will not matter. And what "other people" notice is their issue, not yours :) (Unless you hang out with a bunch of professional kitchen designers!)

Btw I fully agree with @gardengrl66 z5 about symmetry. I also feel like their is a tipping point where the lack of symmetry is too close not to notice. Draw a line then make 4 dots close to one side of that line and it’s hard not to imagine them aligning.

The range is centered between the windows as shown. That symmetry is much more important than trying to force the range to align with the island. It also works better functionally. In a kitchen, function is more important than arbitrary symmetry.