Plečnik House, architect's house and museum in Trnovo, Ljubljana, Slovenia

Plečnik House is a group of houses at Karunova ulica 4–6 in Ljubljana's Trnovo district, where architect Jože Plečnik lived from 1921 until his death. He added a cylindrical annex on the west side in 1923–1925 and a winter garden on the south side after buying the neighbouring house with its large garden in 1928. His drawing studio occupied the large round room upstairs in the tower, with big windows overlooking the garden.

The first house at Karunova ulica was bought in 1915 by Plečnik's brother Andrej, a priest, while Jože was teaching in Prague. Jože moved in in 1921 after joining the new architecture department in Ljubljana. He added a cylindrical annex in 1923–1925 and a winter garden after buying the neighbouring house with its large garden in 1928. After his death in 1957, his nephew Karel Matkovič kept the plans and correspondence; the city bought the estate and opened it to the public in 1974.

The house bears Plečnik's name and reveals how an architect shaped his own living space. The rooms display his personal furniture and objects, reflecting his careful craftsmanship and attention to detail in everyday life.

Visitors enter through the reception set up in 2001 at Karunova 6, while the older houses at Karunova 4 hold the study centre and exhibition rooms. The visit covers the vestibule, hallway, kitchen, bedroom with bathroom, small reception room, round staircase, the studio upstairs and the winter garden. The complex reopened at the end of September 2015 after the 2013–2015 renovation.

Plečnik's friend Fran Saleški Finžgar, a writer and priest, lived next door. Their gardens touched, so the two removed the fence between them, and Plečnik remarked that fences between friends are superfluous.