Wonde if you have room for a sideboard? You'll want 36" between the table and other furnishings. If a sideboard is 24" deep, you need 5' from table to wall to fit it comfortably. If you use a minimal 30" of space, and find a 20" deep sideboard, you still need over 4' from the table to wall. What are the actual measurements?

Perhaps that's why the (pretty!) cabinet is built in.

You could fit a tall narrow bar cabinet in the corner where you have the cart. Use the built in for additional storage.

You have no space for another storgae cabinet so use what you have or better yet use some storage in the kitchen. IMO you need to decide what style you like and work toward that. I would remove the built in since it really does nothing for the space or for a MCM look. BTW the rug is too small. I think if you do not want to remove that whole thing remove the top and add a piece of art above it .

@p banos yea solid point. I was concerned about space too. A taller/narrower bar cabinet would be preferred but have found most of those dedicate internal storage space to wine rack and steamware storage. We have some separate wine storage and most of our glasses are stemless. So at least sideboard would give us more flexibility in storage.

The space is 9ft wide on the side where built in is and 10.5ft wide on the other side of the room. The room is 14ft long. The table is 40” wide. And the rug allows for the min 18” on all sides of table. Any wider would have run into the built in which will not be removed.

126" - 40" = 86" which is 43" each side of table. You couldn't really squeeze anything over 12" wide in there. And that would be tight.

Is there room elsewhere for you bar storage? What's in the room with the windows behind the dining area? What space is available in the kitchen?

The rug is small, but you don't really need a rug in dining area. In a small room the rug can come closer to the walls.

I think the table,chairs and light work fine with the built in. You are living in a house that already had it's own personality, and I don't see the need to erase it. But I wouldn't introduce a cabinet with a really different style, so if you get one try to find something simple that will get along with existing furniture.

@p banos great advice, thank you! The other rooms visible from pictures are the living room which is also pretty tight on space and an open area in the kitchen that would have room for storage if we went the route of tall cabinet vs. wide. The only thing we have in that room is white cabinets in kitchen and small white tulip table and chairs (visible end table in picture is also just a placeholder) so it would be easier to introduce something new in there. If we don’t do any additional furniture in the dining room is there anything more needed, besides art and potentially a larger rug, needed to make the room feel cohesive given the variation of wood finish and furniture style in there, you think?

Love your built in! And I think it works well with your table, too. I would use IT as your bar. You could have some glass cut for the top surface of the built in to protect it. The upper cabinets are perfect for your assortment, I am sure, of glassware. The drawers below for napkins, etc. Utilize IT as your bar. (Even use puck lights beneath the top portion, and/or install a mirror in the back of the bottom, to bring light to the area.).

Possible to create a banquette for the table and move it to the long wall with three or chairs on one side on table?
Store bar items in your built in hutch. Move chandelier over center of table.

Look for a unit with sliding doors to minimize the clearance needed for a swing door. Room and Board offers custom designs, I would look there.

@ptreckel and @susan Davis I love these ideas! Thank you!

We also have a space issue in our dining room and went with a corner cabinet. This cherry is not your style, but you might be able to find something with a more modern feel. Ours is just 39” across the front face, and we chose this DR set 40 years ago because it was the only one to fit in our tight space. Good luck!