I'm with Trek, dark flooring just shows up too much mess - over a large area it will even show dust, especially if it gets sun. I really can't understand the need to put tiles on kitchen floors, they are so hard and unforgiving, especially on your body and can lead to tired and aching legs if you are standing for long periods and even backache. Have you considered a lino floor? These days it is not cheap, but there are some good patterns in it that look like tiles or you can just get something reasonably plain but it is so much kinder to your body. Cork tiles are also another option as they come in many colours now. Otherwise, maybe look for a laminated or vinyl flooring that matches your existing flooring and rethink the colour for the existing flooring to match the kitchen.

Also love how you have reduced the plinth, I did that with our wall of pantry cupboards so that they wouldn't be too tall and difficult to reach things on the top shelves cheers

if i've understood correctly there's a driveway on the eastern side of the house? so my first suggestions is to make the deck as close to the boundary as allowed (hopefully about 1-5m from the fence will leave at least 4 m with stairs moved to the outside edge and create a drive through carport with potential access into the garage downstairs and a good sized deck space upstairs... i wouldn't change any of the sliding doors or windows and concentrate on making the best deck for the outside living area and use old dining room as a small TV room, old living as dining area (an extendable table can move indoors or out for big crowds) a generous new kitchen with island and open up the space between old living and kitchen without removing the whole wall

I’d go with timber or cork. Cork is great in a kitchen. Easy on your feet and joints and things are much less likely to break if you drop them. Especially as you age, tiles cause fatigue if you are standing in the kitchen for too long. Cork is now available in lots of different colours and styles including charcoals and greys that might compliment your slate. It’s not all 80s orange. Of course timber can look great too. Just make sure it’s ok for kitchen use.