In Balneário Piçarras – on the northern coast of Santa Catarina – just a few meters from the sea, the N9 Residential Building features a ground floor free of walls, elevated on pilotis, which houses the garages and vertical circulation, including stairs and an elevator. Each typical floor, consisting of just four floors, accommodates two apartments.

The selected plot, measuring 330 square meters, is located on a block facing the sea in the northern part of the city, with a width of 12 meters and a length of 27.50 meters. The layout prioritizes a unique view of the beach, in a neighborhood that remains predominantly residential with low buildings.

The project offers two types across eight apartments. The four apartments at the front of the lot, facing southeast, feature three bedrooms, while the northwest-facing apartments are smaller with two bedrooms. The design was configured based on an analysis of the site conditions, potential landscape views, and the area available for construction.

All units have their own private balconies, enhancing the relationship between interior and exterior spaces as well as the local landscape. The four front balconies are structurally cantilevered, while the rear balconies are integrated into the building’s structural grid and the formal design concept.

The independent structure of the building consists of reinforced concrete pillars, beams, and slabs cast in place. Due to its timelessness, exposed concrete is used as a finish in various parts of the building, including the ceilings of the apartments. On the ground floor, the concrete structure is fully visible: beams, pillars, slabs, and pilotis, with the plumbing installations painted black.

The interior walls are made of plastered masonry, while the volumes of the barbecues – a hallmark of the region – and some balcony walls are executed in exposed solid brick. Concrete cobogós, white masonry, and dark lead details also contribute to the identity. Cantilevered over the front setback, the balconies feature perforated aluminum closures in black, a material also used for the chimneys and all the building’s frames and gates, creating visual unity.

The straight and simple lines and the materiality of the architecture reinforce the intrinsic natural value of each material. The building's form is characterized by a rectangular block defined by the four typical floors and supported by the ground floor pilotis. The formal proposal is marked by horizontal beams that divide the floors and visually express the entire rational composition. An independent volume in exposed concrete, aligned with the sidewalk, houses the trash and gas central installations, ensuring that the simple volumes of the entire project stand out.