I've been there. After living in Rome, Milan, Bologna, and Turin, I've developed a radar for bullshit. It's not just about finding someone who can pay the rent; it's about finding a person you can share a living space with without wanting to throw their dirty dishes out the window.
Let me tell you the truth: most roommate problems start with a mistake made right at the beginning, during the selection process. People only look at the wallet, not the compatibility. But you're not going to make that mistake, are you?
How can you tell if a roommate will be a good fit?
📷 cottonbro studio / Pexels
The answer is simple: you have to ask the right questions. You can't wait for problems to explode and then complain about them. You have to be proactive, almost like a detective looking for clues.
Think of the first meeting not as a job interview, but as a first date. You're trying to see if there's chemistry, if your "lifestyles" are compatible. If one of you is looking for a serious relationship (a quiet, tidy home) and the other is just looking for a one-night stand (a place to crash between parties), it's never going to work.
Here's the trick: prepare a mental list of questions. Not to interrogate them, but to guide the conversation and gather the information you really need.
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Secret #1: The Third Degree (The Friendly Version, Obviously)
Okay, "third degree" sounds a bit intense, but that's the idea. During that first chat, you need to go beyond "What do you study?" or "What do you do for work?". That's the basic stuff, but you need the real dirt.
The main sources of arguments, as all the research confirms, are always the same: cleaning, money, guests, and noise. So, you need to investigate these points, but smartly.
The key questions to ask:
- Cleaning: Instead of asking "Are you a clean person?", which is a useless question (who's going to say no?), try this: "In your current place, how do you guys handle cleaning the common areas? Is there a schedule, or do you just wing it?". Their answer will tell you everything about their level of organization and their expectations. If they say, "Uh, when it looks dirty, someone cleans it," they might not be the right fit for you and your Excel spreadsheet with weekly shifts.
- Kitchen Management: "Picture this: you get home, dead tired at 9 PM, and someone else's dirty dishes are in the sink. What do you do?". If the answer is "I'd just wash them, no big deal," you've found a saint (or a liar). If they say, "I'd shoot them a passive-aggressive text right away," you know what kind of communication to expect.
- Expenses: "How do you prefer to handle shared expenses like cleaning supplies, toilet paper, oil? A shared kitty, a cost-splitting app, or everyone for themselves?". This shows you their approach to sharing. If you're a Splitwise fan and they prefer to keep separate tabs on everything, you might have some friction.
It's not an interrogation; it's a way to see if you speak the same language. If you're on different planets on these issues, it's going to be tough.
Secret #2: The Ideal Roommate Profile (Which Starts With You)
Before you start looking for others, you need to know yourself. It sounds like something out of a fortune cookie, but it's the honest truth. If you don't know what you want and, more importantly, what you don't want, how can you ever hope to find it?
Grab a piece of paper (or open the notes app on your phone) and be brutally honest.
Are you a social animal who loves having people over, or a lone wolf who considers the living room a sacred temple of silence? Do you work at night and sleep during the day? Does loud music after 10 PM bother you?
Create your profile:
- Your 3 non-negotiables: Write down the three rules you would never compromise on. For me, for example, they were: no smoking indoors, clean the bathroom after using it, and no unplanned weeknight parties. These are your red flags: if a candidate doesn't respect them, you rule them out immediately, no ifs, ands, or buts.
- The 3 things you can negotiate on: Maybe you're not thrilled about overnight guests, but you can accept it if it happens once a month and with advance notice. Or maybe you're not a pet person, but you could tolerate a quiet cat that doesn't cause damage. Being flexible is important, but you need to know where your boundaries are.
- Your "social level": Are you just looking for someone to split the bills with, or are you hoping to find a new best friend to binge-watch TV shows with? Be clear about this from the start, both with yourself and with potential candidates. There's nothing worse than having mismatched expectations about the relationship.
I'm telling you from experience: when I started doing this exercise before posting an ad, the quality of people who contacted me improved by 100%. A specific ad attracts specific people.
Secret #3: The Roommate Agreement (Put It in Writing, No Hassle)
"Putting it in writing" sounds like some lawyer stuff—super formal and a total pain. But it's not. I'm talking about a simple shared Google Doc, a one-pager that sums up the basic house rules.
This isn't to punish anyone who messes up; it's to make sure everyone is on the same page from day one. It's a tool for clarity that prevents 90% of future arguments.
What to include in the agreement:
- Cleaning Schedule: A simple chart. Week 1: Luca does the bathroom and floors, Marco does the kitchen. Week 2: they switch. Done. No room for interpretation.
- Managing Shared Expenses: Decide on a monthly budget (e.g., €20 each) for shared products (cleaning supplies, salt, oil, etc.). Collect the money in a house fund or use an app to track expenses. For bills: set a deadline for paying your share.
- Rules for Guests: This one is key. You can decide together: "Guests are welcome, but if they stay for more than two consecutive nights, we let the other roommates-felici) know with a day's notice. Guests should be respectful when using common areas."
- Hours and Noise: Establish "quiet hours," for example, from 11 PM to 8 AM, during which everyone avoids using the washing machine, vacuum cleaner, or listening to loud music in common areas.
Presenting this "agreement" to a potential roommate doesn't make you a control freak. On the contrary, it's a sign of maturity and respect. If someone gets scared off by a little bit of organization, they're probably not the right person for a peaceful living situation.
Secret #4: The Litmus Test, a.k.a. The "Typical Night" Question
This is my favorite question, the one that has saved me from dozens of potential disasters. It's an open-ended, harmless question that reveals a world about the person in front of you.
The question is: "Describe your ideal weeknight and your ideal weekend night."
Let's analyze the possible answers:
- Answer A: "During the week, I get home, have dinner, watch a movie, and go to bed early. On weekends, I like to go out with friends, grab a drink, or go to a concert."
* Analysis: This is the answer of a balanced person. They respect the work/study rhythm during the week and enjoy their social life outside the house on weekends. They probably won't be hosting a rave in your living room on a Tuesday night. Great candidate.
- Answer B: "For me, the house is a gathering spot! I love having friends over for dinner, even during the week. And on weekends, it's long happy hours at home and partying till late."
* Analysis: Extremely social person. If you're like that too, you've found your soulmate. But if you're looking for peace and quiet, this is a red flag the size of a house. They're not a "bad" person, just incompatible with you.
- Answer C: "Honestly, I spend very little time at home. I just come back to sleep. I'm always out, both during the week and on weekends."
* Analysis: The ghost roommate. Could be perfect if you want maximum independence and aren't interested in bonding. The risk? They might be less involved in managing and cleaning the house, since they "barely live there." Worth digging into.
This simple question tells you much more about their lifestyle, noise habits, and view of common spaces than 100 direct questions ever could.
Secret #5: Plan Ahead and Use the Right Tools
The mistake many people make is looking for a roommate when they're already desperate, in a rush to sign the lease. Rushing is the worst thing you can do because it leads you to accept the first person who comes along just to fill the room.
The trick is to start your search well in advance, at least a couple of months before you need someone. This gives you time to do things calmly, meet more people, and make a real choice without the anxiety.
And then, use the right tools. Word-of-mouth and Facebook groups are fine, but they're often a chaotic mess. Dedicated platforms like Coinquilino are designed specifically for this. I always use them for two main reasons:
- Detailed profiles: Instead of vague ads, on Coinquilino you can create a profile where you describe yourself, the apartment, and, most importantly, the type of person you're looking for. You can include your habits (smoker/non-smoker, pets yes/no, schedule), and this already does a huge first round of filtering. Anyone who contacts you has already read your "profile" and likely feels they're a good fit.
- Smart filters: You can filter potential roommates by age, profession, and habits. This saves you a ton of time by avoiding conversations with people who are obviously incompatible.
A well-written ad on a serious platform is like using quality bait: it attracts the right fish and keeps away the ones you're not interested in.
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FAQ: The Questions You're Probably Asking (and My Answers)
### How do I write an effective ad to find roommates?
Be specific and personal. Instead of "Seeking roommate for single room," try "Hey! We're Marco (25) and Giulia (26), looking for a roommate for our quiet but social home. We love having dinner together but respect each other's space and quiet time during the week. If you're looking for a home that's a 'safe harbor' and not a 'party house,' get in touch!". Add nice photos of the apartment and of yourselves. People are more likely to trust someone who shows their face.
### What are the immediate "red flags" to look out for in a candidate?
If they only talk about money and don't ask any questions about the house or about you, they probably just see the room as a transaction. If they openly trash their ex-roommates, be careful: they might be the problem person. Another red flag is vagueness: if they can't answer simple questions about their habits, they might have something to hide or are just not very self-aware.
### Is it better to look for a friend or a "stranger"?
I've been there: moving in with your best friend can seem like a dream, but it can sometimes ruin the friendship. The dynamic changes when bills and cleaning schedules are involved. Sometimes, a "stranger" with whom you have a cordial and respectful relationship is the best solution for a perfect roommate situation. Fewer emotional expectations, more practical clarity.
### How do you talk about money without sounding like a vulture?
With transparency and ease. Put it this way: "Just to be clear from the start, the rent is X, and we estimate bills will be around Y per person per month for 2026. The deposit is Z. Is that affordable for you?". It's a practical question, not an invasion of privacy. It's better to be clear upfront than to find out a month later that they're struggling to pay.
### Does a written "roommate agreement" have legal value?
Disclaimer: I'm not a lawyer, so take this as advice based on experience. An informal written agreement between you doesn't have the weight of a legal contract, but it has enormous psychological and moral value. It serves as a reminder of the commitments you've all made. If someone consistently violates it, you have an objective basis for discussion, rather than relying on a vague "but we agreed that...".
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In the end, finding the best roommate is an art that mixes intuition, strategy, and a bit of luck. But you can definitely shift the odds in your favor. Stop being a passenger in your search and start driving.
If I were you, I'd start here: grab a piece of paper and write down your 3 non-negotiable rules and your ideal lifestyle. This little 10-minute exercise will give you incredible clarity.
Then, when you're ready, use that clarity to write an honest and detailed ad. Platforms like Coinquilino.app are perfect for this because they let you set the right filters and describe exactly who you are and who you're looking for. It's the best way to attract people who are already on your wavelength, saving you a ton of time and future headaches.