Go through the entire process of "doing laundry," and you will realize that it doesn’t work that way.
It’s not just a matter of throwing the dirty laundry into the washing machine and taking it out again.
Laundry is collected, and I am particularly thinking of, for example, my husband’s sports socks, which definitely smell when dirty. Should you present this scent to the customer? In summer, you can hang laundry outside. What do you do in winter? Or when it rains? Carry the wet laundry into the apartment?
Where is the ironing done?
I don’t see a sink in the office (which I think is good!), so what do you do with the condensation water from the dryer? Carry it through the hallway to the guest bathroom, which is so small that it will probably be difficult to empty the container in the washbasin?
Laundry is not only collected but also sorted. At least I have light delicates, dark delicates, towels, etc. for 60°, boiling laundry. Okay, you have a collector in the office, but where should the other piles go when the dirty laundry has been sorted for washing? For me, the sorted piles lie on the floor waiting for their turn in the washing machine, but that will hardly be possible if the room is also used as an office.
I would make the office a bit smaller and add the gained square meters to the bathroom or children’s bathroom (the entire children’s bathroom, without a dividing wall to the WC, which has already been noted) and place the washing machine and dryer there.
Having them in the office is absolute nonsense.