We have deliberately decided to buy a not so big house. Currently, the four of us have 125m² + attic. But apart from the fact that the desk is in the bedroom due to the lack of a 5th room, it is not too cramped for us. The attic consists of 2/3 old children's toys and children's clothes, which will all disappear during the move. An attic tempts you to accumulate an incredible amount of trash.
The more storage space you have, the more likely you are to forget things or buy items like cleaning cloths, trash bags, craft supplies, or baking items multiple times. We currently have two storage rooms and you wouldn’t believe what we found again while decluttering. We want to avoid that in the future. In the future, we will only have 105m² + 20m² loft (office + storage space), but that should be enough.
When I look at comparable new houses with 140m², there is significantly less storage space there and the hallway or utility room (we don’t have anything like that at all) take up a lot of space.