True, there are plenty of spaces in the upper row, should get an RCD and 5 more breakers in. The lonely Neozed fuse looks weird, I only know them in groups of 3, at our hardware store they don't even sell single pole Neozed elements.
The number of breakers is quite high for such a house, as I mostly deal with very old wiring I'm still used to a scheme like 2 or 3 large rooms lights+receptacles on one circuit (for example our apartment: circuit 1: Bedroom 1, living room, bathroom. Circuit 2: Bedroom 2, hallway, kitchen and toilet (usually not located inside the bathroom but in a separate room). Circuit 3: Dishwasher. Circuit 4: Washing machine. 1 and 2 are 13A, 3 and 4 are 16A. All breakers 1+N, everything protected by 1 30mA RCD. 20A main fuse out in the stairway (there's usually one big main fuse box for all apartments on each floor), wired with 10mm2), maybe some 16A 3ph circuits for range etc. We never had a breaker trip from an overload.
