The idea of enlarging is not wrong in itself. But it doesn’t have to be 30m².
The building was extended by 0.5m, which - in our opinion - allows for an ideal compromise.
Kitchen
- has 16m² with a square layout
- window (left side of plan) to the south was replaced by a sliding door
- currently a closed kitchen, therefore 2 dining seats (my wife’s wish)
- later conversion to an open kitchen possible
Living room:
- 3.40m sliding door (glass) to the south
- Swedish stove on the right side of the plan (corner)
Children’s room:
- window on the north removed
- large windows, 40cm above the floor
To be done:
- detailed bathroom planning
- kitchen planning (window centered?)
- living room window (east / bottom of plan) arrangement and size?
Unfortunately, I have to burst your bubble regarding your kitchen and the living/children’s room.
Our living room and kitchen also have an L-shape, but the L is open.
The dimensions of our living rectangle are 8.5m x 5.5m, and with the living room and dining room positioned the same, it does not look nearly as airy as your floor plan suggests.
The dining table only fits lengthwise so that one can get out comfortably and have walkways (keep in mind we have 1m more width).
Our bedroom (also same furniture positioning but the door is further left) is 4m x 3.6m with a 2x2m bed.
There feels like only 1m space between the end of the bed and the closet. In your case, half the room seems free despite bed and closet with almost the same dimensions.
The same applies to your kitchen.
Furthermore, those seem to be raw construction dimensions, so several centimeters will be lost with plaster and baseboards.
Do yourself a favor and draw your future furniture with actual measurements into the floor plan (meaning if the mattress is 180cm, there is also a frame plus baseboards plus plaster; a dining table is not only 160cm long, a sofa not 180cm; and a fireplace with chimney also protrudes about 1m) including free pathways.
But enough complaining. I think the planning for a bungalow is good. I briefly considered whether the private area could be separated by another door, but that would mean having to open yet another door, which is also unpleasant.