I offer you one of my two guest rooms in our 125 m² flat built 1903, where me and my 16y.o. son live, together with our guests. ( the other room is available here: https://www.airbnb.com/rooms/712848 .
The standard of the flat is willfully functional, but nicely done up, not "modern" and not "perfect" , but charming! Microwave, refidge. cooking plate + water boiler are available. Your used dishes I will clean for you in my dishwasher. Bathroom and separate toilette are shared with us.