There are properties that are difficult to define by conventional standards. This extraordinary penthouse apartment is one of them.

The building was comprehensively renovated in 2011, equipped with new triple-glazed windows in 2023, and further upgraded in 2026 with high-quality appliances, bespoke oak carpentry work, and a new climate system.

Cathedral-like room heights, white-washed exposed beams, and generous glazing characterize the architecture. Daylight enters from three sides as well as through motorized Gerber-Vogt roof windows and reaches the living area via an open gallery and a glass element in the floor. A wood stove forms its centerpiece, while the characteristic five-sided skylight frames views of the surrounding treetops.

The apartment features two bedrooms and an open gallery. The master bedroom offers generous built-in wardrobes. The second bedroom, currently used as a music room, was restored in 2026 with a full-height oak partition wall and custom, sound-insulated sliding doors by Tschudin AG, and can be seamlessly opened to the living area or completely separated from it. The open gallery provides additional sleeping and working areas beneath motorized roof windows and a glass balustrade with views into the living space below. A discreet climate system ensures comfortable cooling throughout the apartment – a particularly valuable feature for a historic Basel penthouse.

The defining outdoor highlight is the private roof terrace of approximately 29 m² with panoramic views over the treetops and rooftops of Basel extending into the surrounding landscape. It is complemented by a kitchen balcony of approximately 6 m², whose complete renovation is scheduled for autumn 2026, already approved, and fully financed by the property owners' association.

Functionality is also impressive: The travertine bathroom with Villeroy & Boch fixtures features a rain shower and bathtub, while the kitchen features a one-piece black quartz cooking island and high-quality Siemens appliances. Oak wood floors with underfloor heating, integrated storage, washer and dryer in the apartment, and a restored goods lift with a load capacity of up to 250 kg complete the high living comfort.

The offering is rounded out by a private garage box with exclusive right of use to the access drive. It is separately registered in the land register and can be acquired together with the apartment for CHF 55,000.