How to Find a Good Housemate (and Spot a Bad One Early)

Most people screen housemates on whether they seem nice. Nice is not the variable. Plenty of pleasant people are hopeless at paying on time or cannot sleep through noise.

What you are actually testing for is compatibility on the handful of things you cannot compromise on later.

Write a listing that filters

A vague listing gets you volume. A specific one gets you fewer replies and better ones, which is what you want.

Include the boring facts up front, because leaving them out wastes everyone’s time:

Weekly rent and what it includes
Bond amount
Whether bills are included or extra, and roughly what they run to
Room size and whether it is furnished
Lease length and the earliest move in date
Who already lives there, roughly, including ages and what people do
House rules that are non negotiable, such as no smoking indoors or no pets

Then add the part most listings skip: what the house is actually like. “Three of us, all work full time, generally quiet on weeknights, we cook together maybe once a week” tells the right person to apply and the wrong person not to bother.

Ask questions that predict behaviour

Ask about the past, not about intentions. “Are you tidy?” gets a yes from everyone. These do better:

“Walk me through a normal weekday for you.” You learn their hours, whether they work from home, when they shower, and whether they are around during the day. This one question resolves most practical compatibility.

“What did you dislike about your last share house?” Enormously revealing. Listen for whether the problems were structural or whether every previous housemate was somehow unreasonable.

“How do you usually handle rent and bills?” Someone with a clear answer has done this before. Vagueness here is worth noticing.

“What happens if your hours get cut and money is tight for a month?” Slightly awkward and very informative. You are looking for someone who says they would tell you early.

“How often do you have people over, and do partners tend to stay?” Ask now. This is the most common unspoken grievance in share houses and the hardest to raise later.

Warning signs worth taking seriously

Cannot provide any reference from a previous housemate or landlord. One awkward exit is normal. None at all across several years is a pattern.
Vague about why they are leaving their current place, particularly if the move is urgent.
Wants to move in immediately with no notice given anywhere else.
Pushes back on the bond, or wants to pay it in instalments without saying why.
Every previous housemate was terrible. The common factor is standing in front of you.
Cannot commit to a viewing but keeps asking to secure the room.

None of these are automatically disqualifying. Several together, or one with a bad explanation, is a reason to keep looking.

Meet in the house, with the house

Do the viewing with everyone who lives there if you can. People perform differently one on one, and your housemates will notice things you miss.

Afterwards, get everyone’s read separately before discussing. Groups converge quickly on the first opinion voiced, and you lose the useful disagreement.

Practical checks before they move in

Confirm identity. A driver’s licence is enough.
Ask for a reference from a previous housemate or landlord, and actually contact one.
Take the bond before handover, not after.
Put the agreement in writing. Rent, due day, bills, notice period. Nothing elaborate, but written down. Our guide on what to include in a share house agreement covers the specifics.
Add them to your shared records on day one rather than three weeks in, when everyone has already lost track of what they owe.

The thing that matters more than screening

Even a well matched house drifts into conflict if the money is murky. Most share house arguments are not about character, they are about six weeks of ambiguity over who paid what.

Set up the boring infrastructure on day one: agreed rent per person, agreed due days, a visible record of what is paid and what is outstanding. Mates on Rent does this in a few minutes, and you can invite a new housemate by phone number before they have even downloaded the app.

Get that right and ordinary compatible people live together fine. Get it wrong and even good matches end up resentful.