Is there room to add a toilet?

The phone rings and it’s Ric on the line.
“Hey Tony, I just rented out the back on room via Airbnb and the boss is not happy that she’ll have a stranger in our part of the house using the bathroom!”“Can we put a toilet in the back bathroom or laundry?” he asked hopefully.
“Of course we can,” I said. “If you can stand the pain, I can stand the strain. Shall I grab my quote book and pop around for a coffee to see what we can do?”
“Hey Tony, I just rented out the back on room via Airbnb and the boss is not happy that she’ll have a stranger in our part of the house using the bathroom!”“Can we put a toilet in the back bathroom or laundry?” he asked hopefully.
“Of course we can,” I said. “If you can stand the pain, I can stand the strain. Shall I grab my quote book and pop around for a coffee to see what we can do?”