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Highlights

* Listed townhouse “Zum Helltor” dating from ca. 1899
* Impressive Gründerzeit architecture with historic facade design
* Listed both inside and out, with high-quality restoration work
* Facade and balconies recently and comprehensively renovated and upgraded
* Rare downtown lot of approx. 1,094 m² in Überlingen
* Located on the edge of the protected old town, within walking distance of Lake Constance
* Historic details such as high ceilings, a solid-wood staircase, stylistic elements, and murals
* Established vacation rentals with an excellent reputation and high occupancy rates
* Very good reviews on established booking platforms
* Partially leased as office space and vacation rentals
* Can be used as an investment property, for owner-occupancy, or as part of an operational concept
* A sale-and-lease-back structure for vacation rental operations is theoretically feasible
* Approved underground parking garage with approximately 8 to 10 parking spaces, depending on the design
* Exceptional parking convenience in a downtown location near the lake
* Attic conversion into an additional maisonette unit currently in the preliminary planning stage
* Potential for an elevator as part of the future expansion plan
* Courtyard and outdoor areas offering a secluded retreat
* Historic basement and ancillary spaces with further potential for optimization
* Smart combination of residential use, work space, vacation rentals, and investment

Property Description

Mühlenstraße 21 in Überlingen is a historic, landmark-protected townhouse with a striking presence, well-preserved structure, and versatile potential for use. Built around 1899, this multi-unit residential building combines prestigious architecture, historic details, and a current, established use with further development potential.

With approximately 638.82 m² of living and usable space, the property offers a combination of a commercially leased office unit, high-quality residential units and vacation apartments, as well as basement, utility, and ancillary spaces. High ceilings, a solid-wood staircase, wall and ceiling murals, historic stylistic elements, and lovingly restored details lend the building a unique character.

The vacation rentals have become very well established in the market and benefit from their proximity to the old town, their location on Lake Constance, and their historic ambiance. Continuing the existing vacation rental business is, in principle, possible. Other options include owner-occupancy, a traditional investment, or a combination of different uses.

A key added value lies in the development potential: A permit has been granted for an underground parking garage with approximately 8 to 10 parking spaces. In addition, there is potential to expand to include an additional duplex unit in the attic. An elevator is also planned as part of the future expansion concept. Thus, the property offers not only historical character but also a clear vision for the future.

Location

Mühlenstraße 21 is located on the edge of Überlingen’s protected historic district and combines a historic urban setting with proximity to Lake Constance. The lakeside promenade, the cathedral, restaurants, cafés, shops, and the weekly market are all within easy walking distance.

Überlingen is one of the most sought-after locations on Lake Constance and is known for its high quality of life, strong tourist demand, and excellent infrastructure. Supermarkets, pharmacies, doctors’ offices, banks, schools, a kindergarten, a train station, and bus service are all within easy reach. The B31 provides quick access to Friedrichshafen, Meersburg, Stockach, and Konstanz. The Meersburg–Konstanz ferry service also enhances regional mobility.

The location is particularly attractive for both homeowners and investors: the historic old town, lake access, tourist infrastructure, marina, Lake Constance Thermal Baths, city park, and diverse recreational offerings create a high quality of life and strong demand in the vacation segment.