Living arrangements in CNM involve decisions that monogamous structures don't face in the same way. Who lives with whom, how space and resources are shared, and what happens when the cohabitation preferences of multiple partners conflict are practical questions with significant implications.

The options

CNM living arrangements vary widely:

Nested dyad with separate satellite relationships. A couple (or other configuration) shares a home; their other partners live separately. This is probably the most common arrangement. It maintains a clear primary residence and a clear domestic life for the nesting partners, while outside connections are kept logistically separate.

Solo polyamory with separate living. Some people deliberately maintain their own home throughout their CNM life, regardless of relationship depth or duration. This is a structural choice about independence and self-sovereignty rather than a statement about the depth of their connections.

Polycule households. Multiple partners (in some combination) sharing a home. This ranges from a couple and one nesting partner, to more complex arrangements. These are logistically demanding, require higher compatibility across more dimensions, and involve property and financial entanglement that has significant implications if the configuration changes.

Pod or compound arrangements. Multiple connected people living in close proximity but not in the same unit, adjacent apartments, houses on the same street, or intentional communities. These offer geographic closeness without full cohabitation.

What cohabitation decisions actually signal

In most Western cultural contexts, cohabitation is closely linked to relationship significance. Moving in together is understood as a major escalation on the relationship escalator. CNM complicates this in interesting ways.

For people in hierarchical configurations, the nesting decision often overlaps with the primary partner distinction. Who you live with tends to reflect whose life you're most practically integrated into. This can create pain for non-nesting partners, particularly if the cohabitation decision feels like concrete evidence of a secondary status they experience as limiting.

For relationship anarchists and non-hierarchical practitioners, the cohabitation decision is ideally decoupled from relationship status: you live with people based on practical compatibility and desire for proximity, not based on ranking connections. In practice, this is harder than in theory, since the practical implications of cohabitation (finances, shared space, daily domestic life) create interdependence that tends to make cohabitants more practically "primary" whether or not that's the intent.

Challenges specific to CNM households

Polycule households face challenges that coupled households don't:

More people means more compatibility requirements. Cohabiting works best when the people sharing space have compatible habits, routines, and approaches to domestic life. Every additional person multiplies the number of bilateral compatibilities required.

Relationship changes affect housing. When a relationship in the household changes, the housing situation changes. A breakup in a monogamous household is painful; a breakup in a polycule household can create immediate housing instability for multiple people. The question of what happens to the living situation if any relationship changes should be addressed before the arrangement is set up.

Finances become complex. Shared mortgages, leases, and bills create legal and financial entanglement. If these are shared with someone who is not a legal partner (in jurisdictions where relationship status affects these things), the situation may be legally precarious.

Visiting partners and domestic space

For nested couples with non-nesting partners, there are practical questions about how shared domestic space is used. When can a partner visit? Are they comfortable in the shared home? How does the nesting partner feel about a domestic space that's also used for their partner's other relationships?

These questions are often underaddressed in early CNM discussions, where the focus is on emotional and relational agreements rather than the practicalities. Having explicit conversations about how shared space works, before situations arise, tends to produce less friction than navigating them in the moment.

The home as a boundary

Some nesting partners feel strongly that the shared home is their shared space and set limits around when or how often other partners are present. Others are fully comfortable with the home being shared freely. Neither position is inherently right, but they need to be aligned.

A significant mismatch here, one partner wanting an open-door policy and the other wanting the home to feel like sanctuary from the CNM complexity, is a source of sustained friction that doesn't resolve without explicit conversation and probably some compromise.