I noted the shower too. A friend in Stockholm's father recently downsized from the "big house" in the suburbs, where the now-adult children were raised, to a newly built downtown apartment. The laundry area, which is enclosed by walls but does not have a door off the hall, is adjacent to the bathroom. You pass through the laundry area to enter that bathroom (there is also a separate 3/4* guest bathroom elsewhere in the apartment)
*for non-US readers:
1/4 bath = toilet only (i.e. a closet with a toilet and nothing else)
1/2 bath = toilet plus sink (very common on the first floor of a two-story home)
3/4 bath = toilet, sink, shower stall
full bath = toilet, sink, bathtub or double-sized shower stall (a shower stall with a footprint of similar size to a bathtub).
1/4 bathrooms are not commonly seen, but they exist. My childhood friends around the corner lived in a large 1930s villa with a "shop" (workshop) attached to the house by an archway. There was a 1/4 bath (basically, a small room with a toilet and a window for ventilation), the door of which opened to the outside, across the archway from the workshop. While the 1/4 bath itself had no sink, there were two nearby sinks available: the laundry room, also with a door opening to the outside patio, but with no direct entry into the house, was next to the 1/4 bath, and the laundry room had a large sink. And the shop had a sink as well. The 1/4 bath, with its door opening to the outside, allowed children playing outside, or a gardener, or a maid, or someone working inside the shop, to use the toilet without having to re-enter the house itself (and tracking in dirt, etc.). In the case of a maid using the laundry room, the 1/4 bath was closer than the nearest bathroom inside the house. I have friends with a ranch out in the country with a tennis court. On the far side of the court is a 1/4 bath with no sink, the presumption being that you'd wash your hands after playing tennis anyway.