for a symmetrical arrangement consider removing the wall between kitchen and living room, rearranging the kitchen and adding a central entry foyer and front doors and having wide entry stairs could avoid having to remove the central verandah post

Love the exterior, I note your plan seems to be missing a window on the side of dining.

If you want to move the kitchen, I would move it to the living and maybe incorporate a desk area under the window next to garage, as you don't have a study. Table where the kitchen is and lounge to replace dining. This puts your table as the centre piece.

Do you want open plan or any particular rooms?

For me, the very first thing that sticks out like a sore thumb, is the driveway running right past the front of the house, interrupting the indoor outdoor flow and so dangerous if you have small children.

Guests currently drive past your entrance, then have to walk back down the driveway to traverse the small stairs to get to your front door. I have to question why you want to move the front door even further down the deck, to centralise it?

You would be better off, moving the front door to the corner or short side of the lounge nearer the current garage.

HOWEVER, if it were me, I'd relocate the garage and the front door to the dining room end of the house. The main steps to the verandah are already in place, waiting for your guests and the window that I see in the photo could easily become the front door without too much expense.

That would free up your front lawn to allow for some beautiful outdoor entertaining options.

I would turn the dining room into a small cosy guest or family lounge.

I would then reconfigure the kitchen, so your breakfast bar becomes an island bench running along the front. The walkway between rooms is where the sink currently is.

The kitchen sink window and the current front door would then be replaced with big french doors leading to your new entertainment lawns. I would relocate the dining area into the lounge space. This would allow good space for your very large dining table to have the presence that you wish it to have.

Lastly, I would seriously consider re purposing the old garage so that it becomes your new lounge. The plans show that it is attached to the house, but the photo appears to show that it sits lower than the main floor. You would need to weigh up your options/budget to decide how to best achieve this [step down or raise the floor and roof heights] but I believe you should not rule out the added value and pleasure the extra space would provide.

I agree with Lynda Goulden's ideas about relocating the garage and re-configuring the kitchen. Another possible purpose for the the existing garage would be a master suite. The smallest bedroom could then become a study or den. Or you could make the existing garage a games room/teenage space. A lot depends on how your family is made up, and how you plan to live in the home. It looks like it has wonderful potential. Good luck!