Communal living is a challenge. I was just reading a thread about triads on another poly-focused forum, and I thought this quote might be helpful to you:
". . . many people looking for "moresomes" have little experience with roommates, & that rarely recent. It's a sweet little fantasy, but the reality of opening up your house & your life to a new person minute-by-minute is far more difficult that mere sex."
Just be as prepared as you can for the possibility of unforeseen bumps in the road.
The world opens up... when you do.
Oh, oh, can't you see? Love is the drug for me. ~Bryan Ferry
"Love is that condition in which another person's happiness is essential to your own." ~Robert Heinlein