I’m a sucker for Art Deco.
I would, however, rework the “Service Porch” downstairs to turn it into an office and knock out the wall between the kitchen and dining room. Upstairs, I would knock out the wall between the two bedrooms at the left and run a wall (with a door from the hall to the newly-enlarged bedroom) where the stair railing is on the left side of the hall.
At first I thought this was International style, but later saw you’re right about it being Deco.
Hey, Wait a minute…that Garage could be a Ballroom! 😉