Oh, you sound so stressed! Other than the 3D rendering, I would recommend the old cardboard box trick to show how tight all the spaces are. Not only will you not be able to stand in front of your beautiful sleek drawers when you open them - you'll have to stand next to them - imagine coming in the door from the hall with a bag of shopping or your kids coming in with backpacks and then sliding through an 87 cm space. You need a lot more circulation space for a comfortable, working kitchen AND you won't be able to visually appreciate this island of your dreams where it is currently (as Jonathan said). Perhaps move the kitchen and island down in front of the internal bifold doors so you can see the island from a distance and gain more width and then have the seating at the end with the TV on the wall you already suggested, like this photo that J posted: Good luck!

We have a kitchen similar to your design with the big island and no dining table and find it great - we cook a lot and having a big island that works as a worktop and a table for meals is great, if difficult to keep uncluttered. I would add that we do have a big dining table elsewhere for when we have guests, so you may want to consider if you have space for it elsewhere. Islands also provide with good storage, and you can always put a sideboard or dresser where the armchairs are in that design of you really need more, so wouldn't really go for the design with no island and no table. Never had a peninsula but I can see how it may not be very practical in such a big space. Best of luck!!

I'm not being creative enough I think. Was hoping to have a little island in the middle of room but not sure I can get cupboards in towards sloping ceiling and have the island too. Floor to ceiling cupboards for higher section

Thanks for the replies I see the point of freestanding island, and I'll check articles and pictures, however I liked the idea of the hob on the island because I do a lot of cooking and it would be nice to not have to stare at a wall all the time, and instead be able to look into the room, watch TV or chat to people if they are in the same room (which is not often to be fair, and soon it will be just 2 people in the house most of the time so it is purely for my own pleasure). I think that probably the only thing I am certain of is that the hob on the island is a must for me, or no point having an island. Opposite the oven there is a bulkhead and enough space to have reduced depths units, possibly a midi or tall larder and a standard height double drawer unit (the door is for the 'under the stairs' space. On the adjoining wall to the fridge there is a door to the utility room and then a window. By the way, the floor plan shown here is not complete, it just shows the kitchen area. Opposite the kitchen 'room' there is the whole of what was the dining room, with fireplace, with patio doors on one side and sofa on the other. The island would only be 70cm wide, and maybe 160/180cm long, I am concerned it will look more like a long desk. I am concerned that with island and table it will look too cluttered, not much room to move around and too close to the table, and with no island I may not have enough work surface (once toaster, microwave, kettle, coffee machine are sited on available space) I wish there was one specific reason to push me for one option over the other. I think I favour the no island design, but then I see pictures of islands which make me rethink that it could work better with the island. I cannot even go with "no island" then add one if I feel like it, as behind the islands the units need to be half depth in order for the island to work so the decision need to be made before ordering the units. Thanks for taking the time to read!