This small apartment building for rent is located in the middle of a block of the urban fabric of the Provenza neighborhood in Medellín. The typical lots in this area of the city have party walls and are elongated. In this case, the principal and narrow faces of the lot are oriented east-west, with greater solar incidence. Therefore, we proposed a single apartment for each floor with deep facades and intermediate spaces - balconies, terraces, gardens - at the ends, allowing cross ventilation, natural lighting, and shaded areas. The lateral and elongated facades feature small windows, in accordance with urban regulations. On the first level of the building, we located the lobby, vertical circulation, and a double-height restaurant connected to a technical basement. In the following four levels, we proposed one apartment per floor, locating the social area on the eastern side, the bedrooms on the western side, and the kitchen in the middle. The last apartment, with access to a private terrace and pergolas, enjoys a distant view of the city. For the main façade, we proposed a system of six exposed-concrete structural arches, creating six rectangular and six curved openings. Finally, we designed the rear façade to express the structural concrete frames, generating deep balconies with perforated metal floors and planter systems.