Chopinova 4, Cultural monument and residential home in Vinohrady, Czech Republic.

Chopinova 4 is a single-family home in the Vinohrady neighborhood of Prague, listed as a cultural monument of the Czech Republic. The building presents geometric forms and a plain facade that are characteristic of early Czech modernism.

Jan Laichter commissioned the house as the headquarters of his publishing firm combined with rental flats. Jan Kotěra supplied the design and builder Vojtěch Tuka carried out the work between 1908 and 1910. In 1937 a fourth floor was added, conceived by Pavel Janák and built by Josef Záruba-Pfeffermann. The Laichter family and their descendants still own the building.

The house sits on a residential street in Vinohrady and stands out through its plain, unornamented facade lines, which contrast clearly with the more decorated neighboring buildings from the same era. Walking past it, visitors can see how this approach to design marked a visible break from the older housing style of the area.

The house is located on a calm residential street in Vinohrady and is easy to reach on foot from the surrounding metro stations. As it is a privately occupied home, any visit is limited to viewing from the street.

The facade was meant to carry two statues by sculptor Karel Dvořák, but they were never made beyond small models because of money problems. The architect was Jan Kotěra, and the builder was Vojtěch Tuka. The house stayed in the Laichter family, and from 2000 to 2021 it housed the Paseka publishing house.