Separation under one roof

For the first four months of our separation, we lived in the same house. Not because we were ambivalent about the decision. Because the rental market in our suburb was running at one per cent vacancy and the cheapest two-bedroom within the kids' school catchment was twelve hundred dollars a week. The maths did not maths.

So we did what a lot of separated couples in this country are now doing. We slept in different rooms, we drew up a roster, and we kept the household running while we worked out how to actually unpick it.

This piece is about that arrangement. The legal status of it (yes, it counts), the rules that make it survivable, and the sign that it's time to actually move out.

Yes, it counts as separation

The first thing men in this situation worry about is whether they are "really" separated, in the eyes of the law, if they are still under the same roof. They are. Australian family law has explicitly allowed for what it calls "separation under one roof" since the Family Law Act came in, and the courts have been treating it as legitimate separation for fifty years.

The reason it matters is that the date of separation is the date the financial clock starts. Property acquired after separation is treated differently. The twelve-month rule for divorce starts ticking. Spousal maintenance arguments begin from that date. So you want the date locked in, even if you are still sharing a bathroom.

What the courts will look at, if it's ever questioned, is evidence that the marriage has actually ended even though the cohabitation has continued. The standard markers:

• Separate bedrooms. Different beds. Different rooms if the house allows.
• No sexual relationship from the date of separation onwards.
• Separated finances. Not necessarily fully untangled, but a clear shift. New individual accounts, the joint account no longer used for personal spending, a clear point at which the financial mingling stopped.
• Reduced or ended shared social life as a couple. You no longer go to the wedding together as a couple. You no longer present as married to friends, family, the school.
• Notification to Centrelink, Medicare, the ATO, and (for some) superannuation funds, where relevant. The paperwork shifts you from "partnered" to "separated" in those systems.
• A clear conversation, ideally documented, that you both consider yourselves separated. A text message will do. An email is better. A statutory declaration is best, and is what your lawyer will eventually want.

You don't need all of these. You need most of them, and you need them to be consistent. A man who tells the court he separated in March but was still going to dinner parties as a couple in July will have a harder time than the man who locked it down in writing on the day.

The household rules that actually work

The first month under one roof, we tried to keep it loose. "We're adults, we'll work it out." That lasted nine days. The fights weren't about anything. They were about the dishwasher being half-loaded. The bin not being put out. Whose milk was whose.

The fights were not about the milk. They never are. They were about the absence of structure in a structure that had always had structure. So we wrote rules.

Things to write down, on a single piece of paper, on the fridge:

• Sleeping arrangements. Who sleeps where. Permanent until further notice. No drift, no "just for tonight". The geography of the house has to be stable for the kids' sake.
• The kitchen roster. Who cooks which nights. Who shops which days. Who owns which shelf in the fridge. Petty? Yes. Necessary? Also yes.
• Laundry. Separate baskets. Separate wash days. You are no longer doing each other's washing. This sounds small until you find yourself folding her underwear in week three and feeling a wave of grief about it.
• The bills. Which ones stay joint for now (mortgage, electricity, internet) and which ones go individual immediately (phone, streaming services, gym). A spreadsheet. One source of truth.
• The kids' calendar. School pickups, sport, activities. Who's on which day. The fridge calendar that used to be implicit now has to be explicit.
• Visitors. Whether anyone new is allowed in the house. The conventional answer is no, for as long as you're under one roof, regardless of who initiated. Bringing a new partner into the marital home while the other parent is still living there is the kind of move that ends up in an affidavit.
• Money in shared spaces. Cash on the bench. Cards left out. The honest rule: don't touch each other's. Even if it's a twenty for the kids' lunch. The house has shifted from shared to roommate, and roommates ask.
• An exit clause. The condition under which one of you moves out. A date, a financial trigger, a behavioural trigger. We had one: if either of us starts dating, the other moves out within thirty days, on the leaving party's dollar. We never had to invoke it, but we had it.

Stick the page on the fridge. Update it when something changes. The page is not a contract. It's a structure. A house with separated parents in it is a house that has lost its old operating system, and a written rule list is the temporary one.

The kids and the boundary problem

The hardest part of separation under one roof is the kids. Not because they're confused (they handle it better than you'd expect, if you're consistent), but because they will try to use the geography to put you back together.

The seven-year-old will try to engineer a movie night with both of you on the couch. The ten-year-old will mention, in passing, how nice it was when we all had dinner together yesterday. The four-year-old will climb into the wrong bed at 3am and you will both lie awake about it.

The rule we landed on, after a few wobbles, was simple. We would do family things deliberately and rarely. Sunday dinner together once a fortnight, planned, on the calendar. Otherwise we ate separately. We did not do "spontaneous family" moments because spontaneous family moments are how the kids build a story that mum and dad are still working it out.

Other things we got wrong, and corrected:

• We tried to both put the kids to bed together. It looked kind. It was confusing. We split it. One parent on bedtime, one parent in the other room. The off-duty parent did not appear at the doorway for one last hug.
• We tried to be friendly in front of them at all times. The kids read the friendliness as ambiguity. We dialled it down to civil. Civil is honest. Friendly is a performance, and kids can clock a performance.
• We tried to keep weekends "as normal". They were not normal. The kids knew. We started naming it. "It's a bit weird right now, isn't it." The naming did more than the pretending.

The kids will be fine if the adults are clear. The kids will not be fine if the adults are running the old play with the new rules.

When to actually move out

You will know. That's the honest answer, and it's not very useful, so here are the markers.

You should move out when the under-one-roof arrangement is costing more than it's saving. Sometimes that's financial (you've found a place you can afford, the maths now mathses). Sometimes it's psychological (one of you is unable to date, to heal, to sleep, because of the proximity). Sometimes it's the kids (they have started believing the geography means reconciliation, or worse, they have started weaponising one parent against the other in the same kitchen).

Specific signs it's time:

• A new partner is in the picture, even if it's casual. Move out. This is not negotiable. The other person living in the house has a right to a household that is not actively being courted in front of them.
• The fights have started escalating, and the kids are hearing them. The walls in most Australian houses are not soundproof. If you've started hissing at each other in the kitchen at 11pm and the seven-year-old is mentioning bad dreams, the arrangement is over.
• One of you has started going out for "a walk" three or four nights a week to escape the house. That's the body telling you the arrangement has expired.
• You have a property settlement in draft and the only thing holding up the move is inertia. Inertia is not a reason. GO.
• Six months has passed. As a rough rule, separation under one roof works for three to six months. Beyond that, the arrangement starts to corrode in ways you stop noticing because they have become normal.

The musical chairs of the share-house arrangement only works while the music is paused. As soon as the music starts again (a new partner, a new job, a kid's behaviour shifting), someone has to move.

The house remembers

Living separated in your own house is the strangest thing I have done as an adult. The hallway you have walked down a thousand times becomes a corridor between two flats. The kitchen you cooked in together becomes a shared utility. The bedroom you shared becomes one person's room and the other person becomes a guest in their own home.

It is workable. It is even, in stretches, peaceful. It is not, and was never meant to be, a long-term answer. The arrangement is a bridge, and bridges are for crossing, not for living on.

Document the date. Write the rules. Cross when you can.