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Origin and history

The house Thermoc is a trapezoidal plan house located in Trévoux, in the Ain department, in the Auvergne-Rhône-Alpes region. Built probably in the late 15th or early 16th century, it has a characteristic architecture with four levels on its main elevations and five on Casse-Cou Street. Its bays, adorned with golden stone mouldings and cushions, as well as its snug and cross windows, testify to its late medieval style. Remnants of defensive elements, such as an archer and gunboat on Rue Casse-Cou, suggest an original protective function.

The original structure changed little, except for a possible elevation at the beginning of the 19th century and the alterations of the bays on the ground floor around 1960. In 1770, a report described her as "old, but good and solid, armed with iron," confirming her longevity. It is mentioned on the alignment plans of 1777 and cadastral of 1823, with an adjacent neighborhood well disappeared in the 20th century. Ranked a Historic Monument in 1933 for its facades and roofs, it was restored in 1967, as evidenced by a date engraved in cement.

Inside, a staircase in "meunier ladders" serves the floors, where medieval latrines with ceramic duct remain, illuminated by days overlooking Casse-Cou Street. This staircase occupies the location of an ancient latrinal venal, visible on the cadastre of 1823. The house, originally occupied by artisans (like the shoemaker Jean Verrier in 1770), illustrates the dense and functional urban habitat of medieval cities, combining commerce on the ground floor and housing on the floors.

Its partial inscription in Historic Monuments in 1933 concerned only facades and roofs, highlighting the heritage value of its gilded stone architecture, typical of the region, and its residual defensive elements. The Thermoc House remains a rare testimony of medieval civilian habitat maintaining its original structure, despite minor adaptations in the 19th and 20th centuries.

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