The project is located in the Palermo district, and is part of the so-called PH houses, of "horizontal property", a typical Buenos Aires residential typology of the 20th century. It is a set of low housing units with patio served by a central axis of common circulation.

The redevelopment work carried out by Kohan Ratto Arquitectos involved the old caretaker's house, of only 30 square meters, located on the outer edge of the block. It firstly consisted in returning the patio to the housing unit, completely transformed over the years, and then in building several levels each dedicated to its own use.

Each floor of the house searches for different occasions of intimacy with the courtyard and relationship with the city. The ground floor, with the living room and kitchen, establishes a fluid and seamless relationship with the patio. The study on the first floor, set back to generate a double height with the ground floor, looks at the patio through the void. On the second floor the bedroom offers a splendid view of the city, while on the roof you can contemplate the urban landscape sheltered by a large poplar tree from the garden terrace.