Brazilian architecture studio Hersen Mendes Arquitetura was commissioned to design a single-family home located in the Cerrado ecoregion, a vast savanna area in central Brazil.

The home is immersed in the dense vegetation of this Brazilian biome. The House of the 7 Trees is born from a direct relationship with the natural environment, generating a sequence of open and closed spaces that allows for constant transparency and transition between interior and exterior.

Hersen Mendes Arquitetura's proposal uses the seven pre-existing trees as the basis for the development of the project, allowing for easy integration with the surrounding nature and allowing the interior space to extend into hybrid spaces towards the exterior, in a direct relationship with the Cerrado vegetation. The project is formalized through a careful process, paying special attention to detail to shape the patios, intermediate spaces, corners, and natural ventilation systems.

The program prioritizes the location of the library as the heart of the home: a hybrid space that connects other spaces and is accessible from different points. Furthermore, the home pays special attention to the two residents' hobbies: cycling and sewing.

Compressed earth blocks are part of the project's materiality. Although they are manufactured 200 km from the home, they are made using earth from the Cerrado, thereby reducing the carbon footprint. The architecture adapts, embracing the natural landscape as an essential part of its identity.

7 Trees House by Hersen Mendes. Photograph by Joana França.

7 Trees House by Hersen Mendes Arquitetura. Photograph by Joana França.

Description of project by Hersen Mendes Arquitetura

Brasília, 2025 - Located on a plot within the Brazilian Cerrado, the 7 Trees House, developed by the Hersen Mendes Arquitetura firm, was designed to integrate indoor and outdoor spaces, providing shelter without losing connection with the surroundings.

"We want to enter the house and feel as if we are stepping outside," was the clients' request. With this premise, the project was based on the natural vegetation of the land—especially the trees, which were mapped, preserved, and incorporated into the architectural design. The residence's name honors the seven trees that guided its placement.

Taking advantage of the natural slope of the terrain, the house was positioned in the flattest area, gradually advancing as the gradient changes. In some sections, the structure stands out from the ground, creating a dynamic interplay of advancing and retreating in sync with the landscape. Soil permeability was prioritized to maintain the natural water flow and preserve local fauna and flora. During construction, moments of pollination were observed, reinforcing the harmony between the building and the environment.

7 Trees House by Hersen Mendes. Photograph by Joana França.
7 Trees House by Hersen Mendes Arquitetura. Photograph by Joana França.

At the highest point of the land, the resident's studio, dedicated to art and sewing activities, is completely suspended on two tree-shaped pillars. It connects to the social area of the house via a walkway with yellow metal louvers, which provide sun protection and contribute to the project’s identity.

In addition to integrating with nature, the project prioritized the use of local materials, such as eco-friendly bricks produced without firing, minimizing environmental impact and maintaining a dialogue with the cerrado. The house also features a photovoltaic energy system to complement its energy consumption.

7 Trees House by Hersen Mendes. Photograph by Joana França.
7 Trees House by Hersen Mendes Arquitetura. Photograph by Joana França.

Inspired by the organic spaces of Frank Lloyd Wright, the project aimed to create fluid and versatile environments without rigid boundaries. Some walls function both as interior and exterior elements, reinforcing continuity between indoor and outdoor spaces.

The interiors were designed to accommodate a diverse curation of furniture and artworks. Natural materials, such as Beige Bahia marble flooring, along with earthy, green, and neutral-toned finishes, compose the house’s welcoming atmosphere.

A standout feature is the TV wall, suspended from the floor, which conceals a cabinet and is complemented by a fireplace at its base. Meanwhile, the bedroom headboard and kitchen counter volumes, which do not reach the ceiling, contribute to the spatial fluidity.

7 Trees House by Hersen Mendes. Photograph by Joana França.
7 Trees House by Hersen Mendes Arquitetura. Photograph by Joana França.

The library became a central element in the project. Rather than being an isolated room, it spreads throughout the house, with bookshelves distributed along the ground floor, allowing different reading spots to be chosen. The shelves are made of Corten steel, the same material used for the staircase and the lavatory door.

The lighting design was conceived to be functional and discreet: in the dining room, metallic strips direct light downward; in the TV room, lighting highlights the slab, creating a cozy environment.

Every detail was carefully planned to balance the natural and the built, resulting in a space that establishes a unique relationship between the house and the cerrado landscape.

More information

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Architects
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Hersen Mendes Arquitetura. Arquitectos.- Matheus Mendes, Anastácia Hersen.

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Project team
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Thiago Sales and Ana Catarina Trindade.

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Collaborators
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Construction Management/Coordination.- Hersen Mendes Arquitetura.
Engineering Support.- Eng. Maurício Assunção.

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Area
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512 sqm.

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Dates
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Design Year.- 2022.
Construction Year.- 2024.

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Location
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Botanical Garden, Brasilia - DF, Brazil.

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Photography
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Joana França.

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Hersen Mendes Arquitetura is a studio founded in Brasilia, by Matheus Mendes and Anastácia Hersen, in 2016.

Anastácia Hersen and Matheus Mendes are architects recognized in Brasília, Brazil, and abroad, with a consolidated career in architecture, planning, and design. 

Anastácia and Matheus met at the Faculty of Architecture at UNB and pursued distinct careers in the field. Their professional paths converged in 2016, combining complementary expertise to establish Hersen Mendes Arquitetura. The firm integrates all stages of planning, design, coordination, execution, and delivery of spaces and buildings in one place. 

Both professionals stand out not only for the aesthetic and functional quality of their projects but also for their commitment to sustainable practices and innovation in contemporary architecture. 

Among their most recent projects in Brazil are the renovation of the Official Residence of the British Embassy in Brasília; the design and construction of Casa das 7 Árvores, which preserves the existing cerrado vegetation; and the Apartamento dos Arcos, which won first place in the 2023 IAB Award by the Institute of Architects of Brazil in the Design and Interiors category. 

Internationally, their notable work includes the renovation and requalification of Colégio Pio Brasileiro in Rome, Italy, as well as residential projects in Germany, Austria, and the Netherlands.

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Published on: August 7, 2025
Cite:
metalocus, SARA GENT, PABLO GARCÍA-BLANCO MANSILLA
"Embrace biomass. 7 Trees House by Hersen Mendes" METALOCUS. Accessed
<https://www.metalocus.es/en/news/embrace-biomass-7-trees-house-hersen-mendes> ISSN 1139-6415
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