Wohnhaus, Architectural heritage monument in Lichtenfels, Germany.

The Sonnenhaus at Kronacher Straße 21 is a villa built in 1914 in the manner of late Jugendstil, designed by architect August Berger. It is a single-storey, gable-fronted building with a Frackdach roof, a polygonal bay and a dormer on the eaves side; the west side appears single-storey under the deep-drawn roof, though the house was built on four levels. The entrance area and staircase hold multicoloured painted leaded windows made by the Coburg workshop Bringmann and Schmidt.

The villa was built in 1914 by architect August Berger for the merchant and art collector Otto Bamberger, who lived there with his family until 1933, his relatives until 1938. It was listed as a heritage monument in 1994. On 10 November 1938 the house was seized and its collection of Expressionist art looted.

The name "Sonnenhaus" is documented in numerous contemporary sources, and mail addressed simply to "Otto Bamberger, Lichtenfels" reached the villa. The house was a cultural meeting point of the town: regular literary evenings were held here, attended by sculptors, graphic artists, painters, writers and art historians. Guests became fewer during the Nazi era because of the antisemitic discrimination of the residents.

The house can be viewed from the public street and is accessible throughout the year. The best view of the facade and architectural details can be obtained from the neighboring streets.

The villa was probably the only private house in the German Reich completely furnished with Bauhaus furniture, lamps and accessories in the New Objectivity style. Its leaded glass windows were made by the Coburg workshop Bringmann and Schmidt; one shows a beardless Hermes with winged helmet and caduceus.