Two Studios. One Address. Saint-Louis, Alsace.
Your private retreat in Alsace — minutes from Basel.
Studio 1 — Garden Level
A calm, private studio at garden level with its own entrance —
warm lighting, two beds, Nespresso corner. Perfect for two.
Studio 2 — Loft Studio
A generous loft studio with full kitchen, rain shower and room
for three — character, comfort and complete independence.
Saint-Louis, Alsace — At the Heart of the Basel Triangle
Les Trois Cœurs is located in Saint-Louis, just minutes from Basel’s city centre, EuroAirport, and the campuses of Novartis, Roche, and Lonza. TER train to Basel SBB in 7 minutes, Tram 3 and Bus 604 provide direct connections without a car. The TriRegio day pass covers all three countries.
Your Hosts
Les Trois Cœurs is our home, and welcoming guests here is
something deeply personal to us. We are Karima and Carsten,
and every part of the property has been thoughtfully shaped
to offer a calm, comfortable and genuinely welcoming stay.
We live and work on site and personally welcome guests on
arrival. We are always nearby should anything be needed —
while giving you the quiet independence and privacy that make
a place truly feel your own.
What Our Guests Say
★★★★★
“My stay could not have been any better. Carsten and Karima were so helpful and communicative. The space was absolutely lovely and had everything we needed.”
Noah, Houston TX · Airbnb · November 2024
★★★★★
“Everything in the apartment was thought out down to the last detail. It’s incredibly clean — it’s clear the hosts value comfort and love order. We highly recommend this pleasant apartment to anyone visiting Basel.”
Olha, Hungary · Booking.com · December 2025
★★★★★
“Very friendly and welcoming hosts. The welcome is warm, you get good tips about the area and all questions are answered quickly. The location is excellent — quiet, but right in the centre.”
Radomir, Switzerland · Booking.com · April 2026
Book Direct & Save
Book directly with us for our best available rate, without service fees or hidden charges. From your first enquiry onward, you communicate directly with us — the people who will personally welcome you on arrival.
Where is Les Trois Cœurs located?
Les Trois Cœurs is located at 17 Rue Vauban, Saint-Louis, Alsace, France — directly on the Swiss border, less than 10 minutes from Basel city centre by car and 7 minutes by TER train.
How far is Les Trois Cœurs from Basel?
Basel city centre is under 10 minutes by car. The TER train from Saint-Louis station reaches Basel SBB in 7 minutes. Tram 3 and Bus 604 provide direct connections without a car.
How do I book directly with Les Trois Cœurs?
Check availability on the studio page, submit a booking enquiry, and we will send a contract by email within 24 hours. Direct booking saves platform fees for both parties and guarantees our best available rate.
What is the minimum stay at Les Trois Cœurs?
Studio 1 has a minimum stay of 2 nights. Studio 2 has a minimum stay of 3 nights.
Do you welcome business travellers?
Yes — both studios are regularly chosen by guests working at Basel pharma companies including Novartis, Roche, Lonza and Bayer. Fast fibre WiFi, a dedicated workspace, and proximity to EuroAirport make both studios well suited to extended business stays.