"There is a specific quality of intelligence in a building that refuses to compensate for its site. Most architecture negotiates. It compromises with the land, softens its edges, makes itself acceptable. Casa Xingu does not negotiate. It cantileveres. It hangs over the slope as though gravity is a suggestion it has chosen to consider and decline. This is not bravado. It is the result of a studio — Tetro Arquitetura, Belo Horizonte — that understood from the first site visit that the correct response to this land was not to sit on it, but to argue with it. The argument is won. The score is perfect."

— Daniel Stanford · Editor-in-Chief · MODUS · On Casa Xingu

The site chose
the architect.

Carlos Maia and the Tetro team were brought in before there was even a site to build on. The client — whose name, wisely, remains private — approached them with a brief that was both impossible and perfect: find me a plot in Nova Lima with "abundant nature." Together, they searched. Together, they found a hillside in the forested southern suburbs of the city, occupied by a rundown house, divided by old stone terrace walls, threaded through with native forest, and possessed of mountain views that would make a lesser architect immediately start sketching windows.

Tetro did not immediately start sketching windows. They looked at the walls. The original house was demolished — as it had to be — but the stone walls dividing the landscape into terraces were kept. This single decision is the foundation on which everything else is built: not architecturally, but philosophically. To keep the old walls is to acknowledge that the land has a history that predates the commission. It is to refuse the blank-slate arrogance that ruins most contemporary residential architecture. It is, in the precise sense of the word, an act of taste.

"The back embraces the jungle, while the front hangs towards the view over water mirrors." Tetro's own description of their building is more precise than anything Wallpaper managed in two thousand words. Twelve words. Every one of them doing work.

— MODUS Editorial · On Tetro's project description

The geometry
is the argument.

The house is organised around three wings held by six faceted concrete pillars. The pillars are not decorative. They are structural and they are philosophical — they announce that the building is elevated, held, chosen to be above the ground rather than resigned to it. One pillar contains a lift. Another contains a stairwell, its roof light transforming the climb from utility into ceremony. You do not simply go upstairs in Casa Xingu. You are ushered through a column of light into another register of the building.

The primary living wing is fully glazed and projects over the landscape. Below it: reflecting pools, outdoor living and dining, a swimming pool, the old stone terraces. The concrete palette is brutalist in material but not in attitude. There is no rough aggregate, no performative rawness. The concrete is poured with the precision of a tailor — poured to follow a logic, not to announce one. This is the distinction that separates Tetro from the hundreds of studios currently producing concrete houses for clients who want to feel serious. Tetro does not want you to feel serious. They want the building to be serious, which is a different and far more difficult achievement.

What Wallpaper Got Right — And Where They Stopped

Bell's piece correctly identifies the cantilever as the defining gesture and notes that Tetro "started with a completely blank slate." Both are accurate. But the piece never asks why the blank slate produced this specific result — what it is about Tetro's sensibility, their relationship to Brazilian modernism, their understanding of land and material, that made this building rather than another building. Wallpaper covers the what. MODUS covers the why the what matters.

Brazilian modernism
is not a reference. It is a bloodline.

To understand what Tetro built at Nova Lima you have to understand what Brazil did to modernism. When Niemeyer and Costa delivered Brasília — when Lina Bo Bardi built the MASP on its red concrete pillars above Avenida Paulista — they were not applying European theory to a new geography. They were doing something more radical: they were insisting that the formal language of modernism could carry heat, vegetation, colour, the specific quality of Brazilian light, the specific weight of Brazilian earth. They succeeded. The result is a tradition that is not derivative of European modernism but is in conversation with it, often winning the argument.

Casa Xingu is an inheritor of this tradition. The cantilevered volume over the landscape is Niemeyer's gesture updated by forty years of structural engineering and thirty years of ecological awareness. The retained stone walls are Lina Bo Bardi's insistence on the historical object as something to be preserved and inhabited rather than cleared. The cave — the literal grotto in the hillside that will house the wine cellar and cheese-making room — is Brazil's refusal to separate pleasure from architecture, to treat the sensory life of a building as secondary to its formal agenda. It is not secondary. At Casa Xingu, it is primary.

"The cave is where the wine lives and the cheese is made. That single sentence contains more architectural intelligence than most buildings deliver in their entirety."

— MODUS Editorial · On the Xingu grotto programme

The score.
Why perfect.

MODUS scores on five axes: Timelessness, Spatial Intelligence, Material Conviction, Site Responsiveness, and Cultural Depth. Casa Xingu scores ten on all five. This requires explanation, because a perfect score is not a superlative. It is a statement that the building has fully resolved the problems it set itself — that the gap between intention and execution has been closed, that the building is what it intended to be, completely.

Timelessness: the building will not date because it does not reference a trend. It references a hillside, a forest, a tradition, and a material. These do not date. Spatial Intelligence: every transition in the house — from approach to entry, from entry to living, from living to the cantilevered primary suite — is a considered act of spatial argument. Material Conviction: the concrete, the glass, the stone walls, the reflecting pools are not a palette. They are a position. Site Responsiveness: the building cannot be anywhere else. It is specifically and irrevocably this hillside in Nova Lima. Cultural Depth: the grotto, the retained walls, the relationship to the Atlantic forest — Casa Xingu knows where it is in Brazilian history and in Brazilian nature. It has an answer to both.

The drafted version of this review withheld one point — the logic being that perfect scores should require a flaw. We reconsidered. The flaw in that logic is that it makes the score about the reviewer's need for nuance rather than the building's achievement. Casa Xingu does not have a weak argument. Awarding it 49 to preserve our critical posture would be the kind of gesture Wallpaper makes. We are not interested in that gesture.

50 / 50.

Casa Xingu · Photography: Nelson Kon · Tetro Arquitetura

Casa Xingu — cantilevered living wing over reflecting pool — Tetro Arquitetura
Casa Xingu — concrete pillar structure — Nova Lima Casa Xingu — glazed facade and outdoor living — Minas Gerais
Casa Xingu — interior living — Atlantic forest view Casa Xingu — swimming pool and terraces — Nova Lima, Brazil
Casa Xingu — retained stone terrace walls — Tetro Arquitetura Casa Xingu — concrete detail and forest edge
Casa Xingu — stairwell light column — Nova Lima Casa Xingu — kitchen and dining extending to terrace

Casa Xingu · Tetro Arquitetura · Nova Lima, Minas Gerais, Brazil
Architecture: Carlos Maia / Tetro Arquitetura · Photography: Nelson Kon
Images courtesy Tetro Arquitetura · tetro.com.br/casaxingu · Published MODUS Issue No. 1 · © 2026

Studio Profile · Tetro Arquitetura

The studio
Belo Horizonte
built quietly.

Tetro Arquitetura works from Belo Horizonte — a city that has been producing serious architecture in the shadow of São Paulo and Rio for decades, producing it without the attention either city commands, which may explain why the work is so good. Without the pressure of a global spotlight, studios in Minas Gerais have been free to develop a practice grounded in material intelligence, site responsiveness, and the specific quality of light in the Brazilian interior.

Casa Xingu is described by Tetro themselves as their most accomplished private residential project to date. MODUS agrees with the assessment and adds a qualifier: it is not just their most accomplished work — it is one of the most accomplished private houses built in Brazil in the past decade. The lineage is clear: Niemeyer's floating volumes, Bo Bardi's insistence on the historical object, the Paulista school's relationship between inside and outside. Tetro has absorbed all of this and produced something that is not a homage to any of it. It is a continuation.

A studio worth watching with the seriousness this building demands. MODUS will return to Tetro.

Studio Facts

NameTetro Arquitetura
BaseBelo Horizonte, Minas Gerais, Brazil
PrincipalCarlos Maia
FocusPrivate residential · Brazilian modernist lineage
SignatureSite-embedded structure · material precision · programmatic intelligence
MODUSWill return. This is not the last review.

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The Author

Daniel StanfordEditor-in-Chief

Founder of MODUS and principal of Stanford Emporium Inc., Montréal. Twenty-five years in luxury branding, fine art, and editorial direction. Every score on this site is his.