For chair scoot and sit space, I'd follow the guidelines for a rug - 4' all around. Then you want to be able to navigate around the table while people are seated, so add another 18" all around. Are you locating the table at the end of the galley? Maybe you could use a banquette on one side or in the corner https://www.houzz.com/photos/3rd-street-bungalow-traditional-kitchen-austin-phvw-vp~214425

Wow, that was awesome Mark, thanks for that and everyone else. I thought about the desk facing the other way actually, to avoid feeling enclosed I do have really great views there so I thought about a small couch and maybe a bookshelf on the back, but having the dining table in front is probably not the best either.... complicated :( Here are a couple more pics, today was a beautiful day so I managed to get more of the views

There is no common link, no continuity that each dwelling share. i would introduce an element to both structures, borrowed fm the other, so for example the red brick and windows are the most striking design elements in the house, however the rendered garage with a parapet and no visible roof may as well be from another planet, I would brick up the front piers aside the door, with matching red brick, and then I'd install some post and beam rafters that could extend over beyond the garage door, almost like a flat eave, however just beams, no roof, and paint it chacoal, I'd then link a path from th garage to the house, and create the same detail at the porch entry of the home, same beams, colour and materials, so it looks like they belong on the same property. also, perhaps a little scary to consider, i would render the wall in between the door and the first window only, and paint the front door in the matching blue. Windows I'd go charcoal as per th beam structure, and apply a stained timber batten to the flat parapet above the garage, so paint that black, then fix timber battens vertically wh enough spacing to see that black shadowline, it will modernise it, emphasising the elongated design, which is both contemporary and popular, and tie this timber detail into the house with a generous deck. Both timbers will link, over scale th deck, perhaps stagger a step or two, as the garage is over scaled also. remove the fence, and landscape the corner with over scaled shrubbery, a meandering path to help invite ppl between the two structures., the visual disconnection is the fence, but it translates into everything else. if a fence must be, then consider a half height one, or an informal row of sleepers as uprights, to softly define the yard.

These spaces can look awkward but yours is quite inviting with those windows. It could become a retreat space, that allows someone to be near the action without being in it. Seating or lounging would work with the very low head height. I could imagine it would be a great spot for a couple of cool beanbag seats, a small funky bookshelf and a sleek retro lamp, or if you have children to cater for a games setup with storage in a retro ottoman.