Vul. Fedorova, 23 – former residential building

17^th century – a Renaissance-style townhouse was built.
1863 – a reconstruction of a wing.
1872 – the courtyard was paved.
1773 – the shingle roof was replaced with a tin one, small roof windows were arranged.
1912 – the Renaissance-style townhouse was dismantled; a new one in the Art Nouveau style was constructed.
1944 – the Art Nouveau townhouse was destroyed.

The Leyzerivska townhouse (number 23) was built in the Renaissance style in the 17^th century. On the outside it had no stylistic decorations, apart from window and door stone trimmings. In the 18^th century it was by escheat transferred under Jewish administration, which explains its being owned by the burgraves and sub-voivodes of the Low Castle. It was in this house that the sub-voivodes took proceedings against Jews. In the documents this house is referred to as "the townhouse of the sub-voivode administration"; at the same time it served as quarters for the sub-voivode guard. In the second half of the 18^th century the Austrian government sold the townhouse to Lejzer Boruchowicz; it is from his name that its name comes from.

The oldest document in the townhouse building file dates back to 1863 and regards a reconstruction of the wing, carried out by master builder Josef Mühel. At that time it was owned by Jakób and Zlata Schleicher, Zelda Rappaport, and Rachel Horowiz. In 1865 the police building administration ordered the owners to pave the courtyard; during an inspection in 1871 the lack of required fire-fighting equipment was pointed out to them. According to a report of the landvogt's administration of the city's central part from 1871, the Leyzerivska townhouse was owned by the following persons: a half of the building belonged to the Jewish hospital administration, a quarter to Simche Rappaport, a quarter to Leib Schleicher and Reile Rapp, née Schleicher. In 1872 Simche Rappaport, the Jewish hospital director, pledged to pave the courtyard, which was in poor condition. In 1873 the high shingle roof with lucarnes was replaced with a lower tin one, with small roof windows in the raised façade wall. These works were designed by builder Josef Engel. In 1876 one of the co-owners of the building was Malka Kurzer.

Before the First World War the building parcel under conscription number 206 was purchased by Ferdynand Kasler, a well-known Lviv architect. In 1912 he had the Renaissance townhouse dismantled and designed a project for the construction of a new residential townhouse in the Art Nouveau style. An instruction from the Magistrate's building administration was added to the approved project with regard to the regulatory building frontage line, which was moved deeper. The townhouse was built in that same year.

The building was destroyed during the Second World War. Its depiction has been preserved in a drawing of Żydowska (Jewish) street, performed by Franciszek Kowalishyn in 1904. In 1944 Janusz Witwicki designed projects of reconstructing the lost buildings of the Jewish quarter in Lviv's historic center as of the 17^th century, including the house number 23. However, the site has remained vacant.