"A House in the House on Lake Constance - Duplex/Maisonette Apartment in Altnau"
Address
Unterdorfstrasse 18, 8595 AltnauTravel time
- 15 min.Station: Altnau
Surrounding information
School
10 min.Sekundarschule AltnauSupermarket
10 min.VolgPublic Transport
7 min.Altnau Zentrum
Times refer to the route on foot.
Price
- Net rent:
- CHF 2,500.–
- Add'l expenses:
- CHF 250.–
- Rent:
- CHF 2,750.–
Main information
- Availability:
- Immediately
- Type:
- Maisonette / Duplex
- No. of rooms:
- 5
- Floor:
- 1
- Number of floors:
- 3
- Surface living:
- 142 m2
- Year built:
- 2026
Characteristics
Pets allowed
Balcony / Terrace
View
Child-friendly
Parking space
Garage
New building
Documents (1)
Description
Exclusive rental in Altnau on Lake Constance
A house in the house on Lake Constance - a 5-room duplex maisonette apartment with 142 m² of living space. The apartment spans three floors in a newly built multi-family house with only three residential units. Enjoy modern living comfort at the highest level - like in an owner-occupied apartment. Charming sloping ceilings in the attic give the apartment its very special character - ideal for all those who are looking for something out of the ordinary and appreciate the special.
Location
The apartment is located on a quiet side street in Altnau and offers a small view of Lake Constance in some rooms. Through the bright, light-flooded entrance area, you enter the apartment either from the underground parking garage or the shared house entrance. A representative staircase takes you from the ground floor to the 1st floor and further to the 2nd upper floor - here you will find a spacious, open room concept.
Equipment
✔ High-quality materials: solid wood parquet in all living areas (except wet cells and kitchen)
✔ Style-conscious color concept - you won't find any white walls
✔ High-quality kitchen: Equipped with Bora extraction, steam cooker, oven, and warming drawer - perfect for connoisseurs
✔ Two modern wet cells
✔ Two walk-in closets - never too little storage space
✔ Inner loggia (approx. 15 m²) - your outdoor room with plenty of light
✔ Full-value basement with space for storage or hobbies
✔ included - installation according to your choice in the basement or in the apartment
✔ Freecooling (floor cooling) included - the apartment remains cool even during heatwaves
✔ PV system - self-produced electricity
✔ Pet-friendly: Small pets like cats, dogs, or rodents are welcome (other animals on request)
Costs & Availability
💰 Monthly rent: CHF 2,500.– (excluding ancillary costs)
📊 Ancillary costs: approx. CHF 250.–/month (effective billing at the end of the year)
🚗 Underground parking space: CHF 120.–/month (use of an e-charging station possible by arrangement)
Interested?
This not-so-ordinary apartment is waiting for you. Contact us for a viewing appointment - we look forward to hearing from you.

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- Listing ID
- 4003565805
- Object ref.
- lt41s.ctqyc






