Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

Glass walls enclose the courtyard of this concrete house in Argentina , designed by architects María Belén García Bottazzini and Ekaterina Künzel.

Casa Castaños is Belén’s home and is in a gated residential community about a 45-minute drive from the city centre of Buenos Aires. She designed the house for her and her family with Künzel , and it comprises a two-storey concrete structure with a flat roof and measures 236 square metres.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

When designing the project, which is on a 16- by 32-metre plot, the duo had to create a residence in accordance with local building regulations. It had to have a five-metre setback from the front property line, a 10-metre setback from the rear and three-metre setbacks from each side.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

In addition to observing these limitations, the goal was to create a home that did not look like a “bulky and heavy volume,” the duo added. As a result, they used a series of setbacks, outdoor areas and large portions of glass.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

“The project strategy consisted of breaking down the total volume of the house, in a way that none of the facades would express the total height of the building, to avoid showing a robust object,” the architects said.

The concrete upper storey projects from the four walls of the ground level below and is supported with black pillars at four corners.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

At the front of the house, an overhang forms a covered carport and the driveway has grass growing through its pavers.

By positioning the ground floor behind the carport, it becomes more private and protected – the team describe it as “visually hidden from the front by pulling back the entrance volume”.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

Much of the ground floor features windows, including glass walls that enclose a courtyard with a jacaranda tree.

The architects chose this ample amount of glazing to keep Casa Castaños naturally cool with cross ventilation. The vegetation at the centre of the home in the courtyard also creates a microclimate to help dissipate the heat in the summer months.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

“The shadow of the treetop (when fully grown) will do as an umbrella, protecting the house from solar impact,” the architects said.

“We have selected the jacaranda tree because, besides its beauty, it is a deciduous species which will be in full bloom during summer, acting as a sunshade, but will also allow the sun radiation to pass-through during winter.”

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

The main entrance is to one side of the courtyard, and a double-height, glass-enclosed hallway contains a staircase. A walkway on the right side of the courtyard passes a covered outdoor grill area, which is concealed by a volume that contains a laundry room from the carport.

The rear of the ground floor contains an open-plan kitchen, dining room and living area. Glass doors access a patio, garden and outdoor swimming pool. A concrete volume is suspended from the ceiling in between the living room and dining area and houses a fireplace.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

Upstairs contains three bedrooms and two bathrooms, which wrap around a walkway that contains a desk integrated into the walls. The master bedroom has a private terrace with a pergola for shade and overlooks the garden, while the two other bedrooms face towards the front of the house.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

Interiors are pared down with walls painted dark grey, other portions of exposed concrete, concrete floors and furniture in white, cream and wood. Kitchen cabinets and counters are black and relate to the black steel window frames throughout.

The first floor was designed by the architects however to have a “more traditional profile” than the cool, dark interiors of the ground floor and feature plastered walls painted white and pale wood floors.

Casa Castanos by Ekaterina Kunzel and Maria Belen Garcia Bottazzini

For warmth, concrete floors have radiant heat and the walls in the bedrooms have a layer of glass wool for insulation.

Casa Castaños is in the Nordelta district of Buenos Aires, and other projects nearby are a concrete sailing clubhouse on the Paraná River and Lamas House by Moarqs and Ottolenghi Architects .

Photography is by Daniela Mac Adden .


Project credits:

Building company: Constructora Correa
Site supervisor: Fernando Haller
Collaborators: Andrés Conde Blanco, Ariel Correa
Client: Martín Socstel

The post Architect builds herself concrete Casa Castaños on outskirts of Buenos Aires appeared first on Dezeen .

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