We have a tiny kitchen in our London flat and I entertain all the time. The larder in our family home was bigger 😂
Can you afford to redo the kitchen? A dishwasher is essential IMO as there is very little space for drying washing up or to put dirty items while you are cooking. We have an eye level oven with a cupboard above and below. The ceramic hob is above the dishwasher. We only have an under counter fridge but it’s fine as I like to buy things fresh anyway and there are lots of delis, supermarkets etc nearby.
What other storage do you have? We have 2 walk in storage cupboards in the hall and I use one for a small freezer and kitchen equipment eg Kitchen Aid mixer, ice cream/bread maker etc. I could probably manage without all the gadgets though! Shopping bags are in the coat cupboard.
Laundry stuff, kitchen linen (napkins, tablecloths, tea towels), ironing stuff, a collapsible laundry basket are kept with towels and bedding in a built in linen cupboard.
We only keep a small amount of basic day to day crockery, glasses, serving bowls etc in the kitchen. The rest is in the dining room in a dresser and sideboard along with wine/alcoholic drinks. The fruit bowl is in the dining room. It looks like you have space for a dining area going on the measurements of the reception room. If you are short on space, Ikea have very narrow tall DVD/CD shelves that are great open storage for Kilner jars, glasses etc.
Pans hand on wall rails (again Ikea are good for wall storage, plate racks, cutlery holders, rails etc). I have very narrow open shelves for Kilner jars and spices so all the wall space is used. A friend uses picture shelves (a narrow shelf with a lip at the front) for the same purpose! You don’t have much unused wall space but you can have hooks on the door for shopping bags, mops, aprons, oven gloves etc and wall mounted light items like a kitchen roll holder or spice racks, even a small wall hung bin etc. Brands like Joseph and Joseph have lots of space saving stacking items. I keep rarely used items in lidded boxes in cupboards so everything can be stacked eg cake baking and decorating stuff. I also do that with under sink items so you can fit more stuff in but you don’t have to rummage through everything to find things. Under plinth drawers are also good, as a PP suggested.
I guess the trick is don’t keep things in the kitchen you don’t need to. Another tip would be to keep worktops clear as you have very little food preparation space. Do you really need a microwave or toaster? If you do need to keep things on the worktop, go for things you can move easily if you need extra space eg a bread bin, storage boxes/baskets. Get an over sink and over hob chopping board/cover to make extra space.