Looking to add a bathroom, have some questions

Looking to add a full bathroom to this home: https://www.zillow.com/homedetails/219-Ingleside-Ter-Kalamazoo-MI-49006/84494403_zpid/?

Will be renting by the room to college students. It's currently 1.5 baths, with 5 rooms. First obvious question, is it worth adding the extra bathroom, my thought is it will make it more rentable + some increase in value. 

Second, I know there isn't a floor plan, but how feasible is it to add a bathroom to that window door room by the living room? You can see it  in the 3D walk through and in the photos.

Thank you!