According to the dimensions of the plan and the required spaces, the layout and color of the space has been considered in such a way as to prevent the space looking smaller as much as possible.

For this purpose, the floor of the space is considered with one-handed material; bright stone. It also can help to space seems brighter.
The height of the space did not change and all the lights were selected as a surface. This method also helps to make the space look bigger.
We considered the space in front of the kitchen window, which is not possible to install cabinets due to the location of the boiler, as a peninsula. In this way, we can increase the length of the TV wall and make good use of this unused space.

Top row cabinets on two floors were considered as storage space. In addition, a long cabinet was considered next to the refrigerator, which can be used as a supermarket or with a suitable partition as a storage space, depending on your needs.
The living room is located at the end of the space and next to the window, which has both good light and also for corner, can use a larger, L-shaped sofa.

The dining table is placed next to the wall so that it does not obstruct movement. By removing two of the chairs and turning them into a bench, it takes up less space because there is no need for empty space behind the chairs.
Using a long mirror near the entrance, inside the main space and in front of the window of living room, makes the space look bigger and brighter.

Since we do not have any partitions and walls, and according to the dimensions of the space, using light green (pastel) color, the kitchen space and the entrance are defined separately. In addition to these, the use of natural wood colors for the TV table, part of the cabinets, entrance cupboards, etc., along with the use of warm lights, along with the proper use of plants, prevents the space from looking cold. And finally we will have a bright and cozy space.

I hope there is no ambiguity about the design and I hope I have been able to satisfy you.