Week one is the cheap moment
The same sentence costs nothing in week one and costs a friendship in month three. “Can we agree the kitchen gets cleared before we leave it” is admin on day three. In November, after the third pan left to soak, it is an accusation with a name attached.
A rule made before anyone is annoyed is about the flat. A rule made after is about a person, and everyone hears it that way. Five short agreements, written where all of you can read them without asking, is the whole exercise.
1. Decide what clean means, room by room
You get in late and there is a pan soaking in the sink. For whoever left it, that pan is in progress. For whoever finds it at eleven at night, it is abandoned.
This rule does not prevent mess. It prevents the slow appointment of one flatmate as the cleaner. Whoever has the lowest tolerance threshold cracks first, wipes the worktop, and by week six is wiping it while keeping a tally nobody else knows exists.
Phrase it as an end state rather than an effort, because a state can be checked by anyone walking past. Three items per room at most.
| Shared room | What “done” looks like |
|---|---|
| Kitchen | Sink empty, worktop clear, nothing left on the hob |
| Bathroom | No hair in the shower or basin, surfaces wiped, no towel on the floor |
| Living room | Sofa and table clear, your own things back in your room |
Around month three the standard drifts both ways at once, and nobody announces the change. The repair sounds backwards: let it fall. A low bar all four of you hold beats a high one held by one person who is counting.
2. Split by cycle, not by count
Four of you share out the jobs and everyone takes two, which feels scrupulously fair. One takes vacuuming and the bathroom, another takes the washing up and the bins. Same arithmetic, and one of them now works forty minutes on a Sunday while the other works every day.
Daily work is invisible because it never finishes, so it is never completed in front of anyone. Nobody watches you empty the sink for the two hundredth time. They notice the evening you do not.
The jobs that cause the resentment are never the big ones. They are the ones that come back tomorrow.
Sort the jobs by cycle before sharing anything out. Daily: washing up, worktop, bins when full. Weekly: floors, bathroom, mirrors. Monthly: fridge, behind the machines. Quarterly: oven and windows. Everyone then carries part of the daily cycle, and that cycle rotates on the shortest loop you can stand.
Around month three a rotation loses its place rather than its fairness. Someone is away a week, someone swaps in their head instead of out loud, and it defaults to whoever minds most. So the next turn has to be visible before it arrives, and a swap has to be two named people agreeing.
3. Settle the shared money before the first argument
Toilet roll, bin bags, washing-up liquid, bulbs, sponges, salt. One of you has bought all six three times over and said nothing, because asking for the price of a coffee is more awkward than absorbing it.
What this prevents is the payer turning into the chaser. Whoever fronts the money most often becomes the person who brings it up, and that role corrodes a flatshare faster than unwashed plates. The more awkward the chasing feels, the longer it waits and the bigger the sum.
Three parts. A closed list of what counts as shared. One record, written the same day the money leaves. One fixed date in the month when you settle, whatever the total.
| Shared by default | Yours alone | Decide out loud |
|---|---|---|
| Cleaning products, toilet roll, bin bags, sponges, bulbs | Your food, your toiletries, your laundry detergent | Coffee, tea, oil, spices, Friday beers |
Around month three two drifts arrive together. Somebody buys the expensive version of a shared item and puts it in the pot, and somebody stops noting small purchases because it felt petty, which turns them back into the person who pays. Settle on the date even when the total is laughable. The date is the mechanism, not the amount.
4. Say where guests and noise stop being private
Someone’s partner is there five nights out of seven. They are perfectly nice. They also use the shower, the hot water, a shelf in the fridge and the washing machine, and they were never part of any arrangement.
Nobody raises it, because every available sentence sounds like disliking a specific human being. Cleaning can be discussed in the abstract, guests cannot, so it gets stored instead of said. By the time it is said it is not about the shower, it is about six months of not saying it.
Make it a threshold rather than a ban, and set it while there is nobody to apply it to. Pick the number of nights in a row after which a stay is mentioned in advance. Guests are the host’s responsibility, for the mess and for the supplies they use. On noise, agree what is normal on a weeknight and hold to whatever quiet hours already apply in your building.
Agree the guest rule while nobody has a guest. After that, every version of it has a name in it.
Around month three the threshold meets a real relationship, and the rule is being broken by someone who is happy. That is a change of circumstances, not a discipline problem. Name the situation, never the person: anyone staying more than three nights a week pays into the supplies.
5. Book thirty minutes a month to change the rules
The row happens over a sponge, and everyone in the kitchen knows within four seconds that it is not about the sponge.
Nobody raises a half-annoyance on their own, because alone it sounds petty. So half-annoyances stack up until something trivial gives them permission to come out at once, at volume.
Half an hour, a date everyone already knows, one question: what did not work this month. No general review, no round of feelings, just what jammed and what you are changing. Short is deliberate, because a two-hour meeting does not happen twice.
This is the rule that dies first, and it dies from being skipped once. Hold it in the months when nothing is wrong, which is when it proves it is not a tribunal. Rotate who calls it, or that person becomes the flat’s unpaid manager.
If a rule is already broken
Most people read this after the rota collapsed. Four moves, in order.
Say the arrangement failed, not the person. “The rota stopped working” can be answered. “You never do the bathroom” cannot.
Change one thing, the smallest one, usually the daily cycle or the settle date. Change five and you learn nothing about which one mattered.
Put a date on the check, two or three weeks, said out loud. “Let us see how it goes” has no end, so it quietly reverts.
Write the new version where the old one lived, and delete the old one. Two versions in circulation is how you got here.
The tempting move never works: the silent strike, where you stop washing up so they finally notice the pile, is read as you giving up too.
When the rules are not the problem
None of this works on someone who genuinely does not care. Rules coordinate people who want the flat to function, and they do nothing to someone who is fine with it not functioning.
The sign is not mess. It is a conversation that ends in complete agreement and changes nothing, three times running. At that point you are not negotiating, you are being managed.
Your options are real and none is satisfying. Shrink the shared surface, with fewer shared purchases and your own things washed immediately, which also reduces the flatshare to a corridor with rooms off it. Say it once, plainly, including what changes if nothing changes. Accept the level of the flat and stop spending energy on it. Or plan the ending.
One move reliably makes it worse, and it is the one people reach for: turning the housework into a score. Whoever stops playing first looks like whoever stopped caring, so a disagreement about the bathroom becomes a published verdict on a flatmate. The longer argument is in why gamification does not work for housework, and it is an argument, not a proof.
Where an app helps, and where it does not
We make Bunkly, a shared chore app, so read this section with that in mind. A shared list solves rules one and two, and nothing else on this page.
Two decisions from our own design notes matter for flatshares. Recurrence is anchored on the day a task was actually completed rather than a fixed weekday, so cleaning the bathroom on Tuesday instead of Sunday moves the next one to Tuesday, and one missed week never cascades into a wall of overdue items nobody opens. On the paid plan, rotation between members assigns itself, so nobody has to be the person who reminds everyone. A household caps at six, and the free plan is a complete single-person plan with fifteen tasks and three zones, so one of you can load the real list before anyone else joins.
What it does not do matters more. There are no points, no badges, no leaderboards and no mascot, which is a decision rather than a missing feature. It does not handle money, so rule three needs a shared note or whatever you already settle with. It does nothing about guests or noise, and it does not make anyone do a task. It makes an imbalance visible, which helps when you are working out what to say. The features page and the pricing page have the rest.
The point
These five rules ask nobody to be tidier than they already are. They ask for a few things to be written down, visible without asking, and open to revision on a known date. A flatshare that works is not one where people like each other more. It is one where nobody has to remember on everyone else’s behalf.