Zabytkowa Kamienica (Najwęższa w Warszawie), Warsaw

Zabytkowa Kamienica (Najwęższa w Warszawie) is a very narrow residential building and art installation in Warsaw. Its facade is only 110 cm wide, and the structure has been described as the narrowest house in the world.

Unlike a conventional townhouse, this two-story structure was designed as an art installation. Its unusual proportions are part of the work itself, making the building a distinctive landmark rather than simply a small historic residence.

What is the najwęższa kamienica w Warszawie?

The name refers to the narrow building known as Keret House. The tour material identifies it as a residential building with a facade only 110 cm wide, while the background description calls it a Warsaw structure and art installation described as the narrowest house in the world.

The 110 cm figure refers specifically to the facade recorded in the tour material. The background description gives different measurements for the structure's width: 92 centimetres at its thinnest point and 152 centimetres at its widest. These figures describe different aspects of the building, rather than one measurement to be reconciled.

How narrow is the building?

The facade is 110 cm wide, according to the description of the landmark in the tour. The background source records the structure as 92 centimetres wide at its thinnest point and 152 centimetres at its widest, so the building's form changes across its width.

That changing measurement is the physical detail to notice: the building is not presented as a uniformly sized rectangular block, but as a two-story installation whose narrow profile is central to its identity.

What is the history and design of the narrow house?

Architect Jakub Szczęsny designed the structure through the architecture firm Centrala. It is a two-story art installation named after Israeli writer and filmmaker Etgar Keret, who was its first tenant.

The combination of a named architect, an architecture firm and a first tenant gives the narrow building a specific artistic context. Its dimensions are not the whole story; the structure was conceived as an installation and given a literary connection through its name.

Where can you find it in Warsaw?

You find the building in a small square behind the Cathedral of St John the Baptist. It appears in the corner of the square as an unusually narrow residential facade, making that facade the clearest visual cue when you are looking for the landmark.

The landmark is stop 6 of 13 on Medieval Warsaw - Day in the Life of a Nobleman (Old Town), where the tour description suggests taking a picture of this unique find. Look for the 110 cm facade rather than expecting a conventional townhouse frontage.