@Jake175
A shared bathroom is not what guests want I am afraid 😞 but maybe you could build smaller apartments with the possibility to be booked separately or together.
Just for the idea, you can look at our floorplan, we have one 85 m2 apartment divided to studio + 2 bedroom apartment which can be booked separately or together. It works perfectly.
Our 2 bdr ap. is more booked then the studio, probably because there are more studios available in our city. During the high season, they are also often booked together as 3 bdr apartment with 1,5 bathrooms (both apartments share the same entry hall)
The whole place can be rented long term as well, to 1 or 2 groups of tenants.
Although our bigger apartment can accommodate up to 6 guests and studio can accommodate 2 guests, often just 3 or 4 guests will book both apartments because they want more privacy, or each wants his own room or they want 2 bathrooms.