Have a lot of space, so I can comfortably host in my home, and my current partners, as well. But I hear a lot of stories that some have to rotate if there is a parallel V, or have to meet in hotels because the family home is a sacred space. Which can be a drag and feel like you are a shag-buddy.
What have your experiences been so far, and what dynamics are you willing to accept? How do you feel if you're the only one that can host in the dyad, triad etc.? And vice versa, how do you solve it when you cannot host?
I guess I put it down to: people are unique. Some are fine with their nesting partner hosting in the home, some aren't. They have their reasons.
The first one is probably that they're new to poly and it just feels weird to know your nesting partner is on a date with someone else in your home, having sex, using your kitchen and bathroom... hearing them speaking in intimate tones or laughing, coming into a room and finding them embracing.
The next reason might be compersion or lack thereof. Some of us get actual pleasure out of knowing, and even seeing our nesting partner having a good time with another romantic partner. (And yes, some people find it an actual turn-on.) But you don't have to have compersion to be poly. So, you might want to not have that happening in your shared home. You might forbid it, and insist they go to the other partner's place, or to a hotel or whatever, or, you might want to go out yourself and give them a few hours to themselves.
While I have hosted guys in my home while my female nesting partner is here, it's just easier to do when she's gone over to her own bf's house, to have my guy here then. However, it took years to create this dynamic. But when Pixi and I first got this house, we in part chose it because it's got two floors. It's a ranch house with a finished basement. I could host someone on the main floor, and if she had no plans to go out herself, she could go downstairs to the family/media room, bringing any supplies, drinks and food she might need for an hour or two. Generally I would go downstairs when my date and I were done having sex, so she could know the coast was clear, and either he was leaving, or he was going to be hanging out and she was welcome to come up and hang out too.
The one guy I dated longest term who was actually married to a woman, and who had teenage sons, had built himself a small cabin/studio a little ways away from the main house. Guess you could call it a man cave. He used it to do art, play his guitar, read a book in peace, surf the net, and to host his poly partners. It had a minimal kitchen and a loft bed. Unfortunately, the toilet facilities were very primitive, and there was a shower set up outside that could only be used in warm weather. So while I did spend time there, I only ever spent one overnight there. But he spent most of his nights there, because it had come to a point where he and his long-term wife, while happily married, didn't enjoy actually sleeping together anymore.