
Mastering the Move: The Complete Roomie-Radar FAQ for Life in Luxembourg
Everything you need to know about co-living, verification, and legal rentals in Luxembourg. Your journey with Roomie-Radar starts here.

RTL Luxembourg, the country's leading media outlet, has published a feature on Roomie-Radar. It's the third time a Luxembourgish outlet has covered the platform, after Paperjam and Luxembourg Times, and this time the piece goes into detail on the numbers and the business model behind it.
You can read the full RTL story in English here or in French here.
Javier Geisseler and Salvador Reynés arrived in Luxembourg as Spanish expats in 2021 and ran into a rental market marked by high rents, agency fees, and demanding guarantees from landlords. Many expats end up turning to social media to search for a room, often under pressure because they've already signed a job contract in Luxembourg and need housing fast. That urgency is exactly what online scams prey on. In mid-2024, the two founders launched Roomie-Radar as a direct response to that problem.
Nearly two years after launch, RTL confirms Roomie-Radar has passed 1,500 registered users, manages around 260 active room listings, and has received close to 2,000 applications from tenants. That growth rests on agreements with local landlords and co-living companies, who pay a flat fee to list their properties on the platform.
Searching for a room on Roomie-Radar costs nothing. The platform's revenue comes from the landlord side: anyone listing a room pays a flat fee for the listing. "People already struggle to find accommodation, we do not want to add extra fees," Javier told RTL, describing it as a matter of principle for the founders rather than just a business decision.
Fake listings and scams are a widespread problem on Luxembourg's property portals, and even legitimate platforms aren't immune to it. The Roomie-Radar team addresses this by visiting rooms and checking the profiles of anyone who signs up to list. With just two people running the project alongside full-time jobs, it isn't always easy: hiring staff isn't an option for now, since all profits get reinvested into developing the platform.
The platform already has a presence in Belgium, with listings in Brussels, Liège, and Antwerp, and is currently in talks with partners in Norway. The founders also want to establish themselves in Spain, a market they know well, though they stress that Luxembourg remains the priority. Long-term, their ambition is for Roomie-Radar to become the leading room-rental platform across Europe.
The RTL coverage puts numbers behind what Roomie-Radar has been building since mid-2024: a platform that stays free for anyone searching for a room, a business model funded by landlord fees, and an expansion that's already reaching beyond Luxembourg.
If you're searching for a room in Luxembourg, you can browse verified listings right now. Using Roomie-Radar is free.
Find your room at roomie-radar.com.
1. How many users does Roomie-Radar have?
According to RTL's coverage, the platform has passed 1,500 registered users.
2. How many room listings does Roomie-Radar currently manage?
RTL puts the number of active listings at around 260.
3. Is it free to search for a room on Roomie-Radar?
Yes, searching for and applying to a room on Roomie-Radar costs nothing for the tenant.
4. So how does Roomie-Radar make money?
Through a flat fee paid by landlords and co-living companies to list their properties.
5. When did Roomie-Radar launch?
The platform launched in mid-2024, following its founders' own experience searching for housing in Luxembourg.
6. Who founded Roomie-Radar?
Javier Geisseler and Salvador Reynés, two Spanish expats who arrived in Luxembourg in 2021.
7. Which other countries does Roomie-Radar operate in?
Beyond Luxembourg, it has active listings in Belgium (Brussels, Liège, and Antwerp) and is in talks to enter Norway, with Spain as a mid-term goal.
8. How does Roomie-Radar prevent fake listings?
The team visits rooms and checks the profiles of anyone registering to list a property.
9. How many people work at Roomie-Radar?
For now, just the two founders run the platform, alongside their full-time jobs.
10. What's Roomie-Radar's long-term goal?
The founders have stated their ambition to make the platform the leading room-rental platform across Europe.