With a woodland backdrop and the horizon ahead, Baroneza House is set into a
careful reading of the topography of a sloping site. Designed in the Quinta da
Baroneza condominium, in the countryside of São Paulo, for a family that values
togetherness, the residence redefines the traditional logic of site occupation and
inverts the usual programmatic arrangement. By placing the social level on the
upper floor — the highest point of the site — the design fully takes advantage of the
privileged dual view, allowing the space to open continuously toward the
landscape.
Two large volumes are articulated by a central reflecting pool, while expansive
sliding glass panels promote air circulation throughout the interiors, contributing to
cross ventilation and the natural cooling of the house.
Above this fully integrated floor, a glulam (glued laminated timber) roof unfolds into
two sloping planes in a design reminiscent of open wings. The structure was
conceived to maximize the entry of natural light while ensuring shading and thermal
control. Rarely seen in Arthur Casas’s work, the use of a roof form explicitly
associated with traditional pitched roofs becomes one of the central elements of
the project, requiring rigorous technical development to define alignments, wood
tone, and construction precision. In addition to its environmental performance, the
timber structure enabled a dry-assembly system with prefabricated components,
providing greater agility during the construction process.
The materiality of the house reveals itself differently in each overlapping volume.
The upper body appears in exposed concrete, crowned by the timber roof — the
most expressive element of the project. The lower volume, partially embedded in
the ground, also combines concrete and wood, though in a more restrained way
and more integrated with the terrain. Natural stone flooring extends from the
interior to the outdoor areas, establishing visual continuity and directly dialoguing
with the pool, which is also clad in stone.
On the lower level, glass bricks allow zenithal lighting into the stair hall that
provides access to the suites, organized around a garden protected by a retaining
slope that separates the house from the street and public sidewalk. This
configuration ensures abundant natural light, privacy, and a direct relationship with
greenery without exposure to the immediate surroundings. The layout prioritizes
clear and efficient circulation, with smooth transitions between collective spaces
and more private areas.
In the living room, the furniture is arranged to preserve spatial flow and visual axes.
Embaúba (Studio Objeto) and Brasiliana (Jorge Zalszupin) sofas, PL61 armchairs
(Percival Lafer), and pieces designed by Arthur Casas — such as the Galo, Belterra,
and Ettore side tables — structure the environment. Adi coffee tables and jacarandá
pieces dialogue with artworks, including the sculpture Cabeça Jesus, by the artisan
Nicola.
In the gourmet area, the Amorfa table, designed by Arthur Casas, is paired with
Alagoas chairs by Michel Arnoult and the Sênior armchair by Etel. In the home
theater, the Match sofa, side tables, and signature lamps by Studio Objeto coexist
with the Mole armchair by Sérgio Rodrigues and Aiso coffee tables, composing a
more intimate environment. The game room and outdoor areas bring together
pieces by Jorge Zalszupin, Arthur Casas, and furniture designed especially for
outdoor use.
Casa Baroneza thus establishes a direct relationship between architecture,
structure, and landscape. By inverting the traditional program, exploring passive
environmental comfort strategies, and adopting a high-performance timber
structure as a central design element, the residence proposes a way of living that
combines technical precision, constructive clarity, and an intense use of collective
spaces, integrating consistently with the site and its natural surroundings.