We don't have a living room or a dining room either. Everyone eats by themselves at the computer or in front of the TV – sitting alone at the table is rather boring and there are hardly any shared meals because sleep and waking times are too different.
The new kitchen will have an island with seating (2 stools or similar). We don't have guests for meals, so that's absolutely sufficient.
Instead of a living room, which no one would use anyway, we have a playroom with PCs and consoles as well as a TV and some exercise equipment, and upstairs there is another TV room, also with a console and television, for gaming and watching [VoD]. However, it only has 11 sqm, so I wouldn’t call it a living room.
The kitchen is located on the upper floor, which basically consists of just one room, since the rooms have no doors and partly no internal walls. So you could say it is an "open kitchen" with passages to the hall, conservatory, and other unused areas.
I find this dissolution of rigid room assignments in the rental apartment style very refreshing. A sofa stands here, a shelf there, independent of room boundaries and strictly oriented according to the daily habits and needs of the residents. It goes so far that we don’t even have a bedroom, but a bed stands somewhere, some wardrobes elsewhere (to accommodate my need to sleep undisturbed at night without being woken up by rattling wardrobe doors and lights at three in the morning. So everything potentially annoying is outsourced towards the bathroom area – also not a room but a kind of "car wash" with pearl string-like arranged stations and doors/airlocks in between, so that noise disturbs as little as possible at night).
Certain "mandatory furniture" like sofa corner, dining table, wardrobe are not found in our house, as they do not meet the needs of the residents. Fortunately, the floor plan of our old building was so open that we can realize all our ideas. That’s usually not the case with buildings from the 70s. Most houses we looked at had small rooms, narrow layouts, and fixed arrangements, e.g. where the kitchen or bathroom had to be. In this respect, we have found our dream house for modern, open living away from any standard ideas and also have more than enough space for everything we have always wanted.