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Claudio House, or Casa do Claudio, is a 1987 family residence that Cláudio Bernardes designed and built on Palmeiras Island in Angra dos Reis, Rio de Janeiro, Brazil. Its 300 m² plan is inseparable from the island: numbered timber parts were brought by water, the house stands on a rough-stone base, rainwater is stored in a large cistern, and an open ground floor allows family life to flow between shade, breeze and sea views.
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The project is often reduced to a “tropical” image, but its more useful lesson is practical. Construction logistics, structural decisions, passive comfort and social use are treated as one problem. The result is a loose, generous house assembled from timber, stone, thatch, bamboo and simple ties rather than a sealed object imposed on the site.
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Where is Claudio House by Claudio Bernardes?
Casa do Claudio is on Palmeiras Island, in Angra dos Reis, in the state of Rio de Janeiro, Brazil. It was Bernardes’s own family residence rather than a commissioned public building. ArchDaily identifies the project as completed in 1987 and gives an area of 300 m²; a 2021 retrospective by Casa Vogue also dates the home to 1987 and describes it as the place where the family gathered and lived informally. ArchDaily’s project feature and the Casa Vogue retrospective archived by Bernardes Arquitetura are the principal published accounts.
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Palmeiras Island matters architecturally because ordinary mainland assumptions did not apply. Materials, equipment and people had to move by boat; fresh water was scarce; and the building needed shade, airflow and protection from heavy rain without depending on a fully serviced utility network. Bernardes answered those constraints through the building’s structure and section, not by adding mechanical systems after the fact.
Project facts at a glance
| Item | Documented information |
|---|---|
| Project names | Claudio House and Casa do Claudio |
| Architect | Cláudio Bernardes |
| Location | Palmeiras Island, Angra dos Reis, Rio de Janeiro, Brazil |
| Completion | 1987 |
| Area | 300 m² |
| Primary structure and materials | Timber/eucalyptus, rough stone, thatch (sapé), bamboo and natural-fiber ties |
| Water strategy | Rainwater collected from the broad roof into a large cistern below the stone foundation |
| Known access status | Current ownership and public access are not established by the cited accounts |
How did the island construction work?
The house was not assembled from a standard mainland delivery. Components were numbered, floated to the island and towed by a trawler. Casa Vogue’s account specifically recalls eucalyptus logs arriving by water, while ArchDaily describes the numbered timber pieces and the rough-stone base. Numbering the parts would have allowed a remote building site to function more like a carefully planned kit: pieces could be identified, staged and put together in sequence after the boat journey.
This logistical story is also a structural story. A heavy, highly finished construction would have demanded more transport capacity, storage and site machinery. Bernardes instead used a relatively direct palette—wood, stone, bamboo, thatch and fiber lashings—that could be handled in island conditions and visibly express how the building was made. The stone base anchors the house against the ground while the timber frame rises above it, keeping the occupied level open and lightweight.
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The rough stone does more than provide a picturesque plinth. It establishes a durable contact with the site and creates the volume beneath the main living level where the cistern is located. Above that base, timber members define the roof and mezzanine structure. The construction is therefore legible in section: a massive, water-holding foundation below; a breathable, occupied frame above; and a broad roof that mediates between the two.
The sources do not provide a complete structural calculation, species schedule or measured construction sequence, so it would be misleading to infer a tested load capacity or a quantified environmental performance. What is documented is the relationship between transport, material choice and assembly: the island journey shaped the building before the first room was occupied.
What is the spatial organization of Casa do Claudio?
The ground floor is open on all sides. It contains two living areas, a dining area and a bar-kitchen, with no conventional corridor dividing the social rooms. This arrangement makes circulation part of daily life: people can move around the central activities, look through the building and choose sun, shade or breeze without passing through a sequence of enclosed rooms.
Open social ground floor
An open plan on an island is not simply a visual gesture. It reduces the amount of conditioned or mechanically ventilated interior that would otherwise be needed and allows air to pass across the occupied level. It also supports the family’s informal use of the house, recalled in Casa Vogue’s family-centered account. The article quotes Thiago Bernardes, Cláudio’s son, saying, “A arquitetura dele era muito humana. Ele costumava dizer que não a fazia para ser premiada, mas para proporcionar o bem viver.” In English translation: “His architecture was very human. He used to say that he did not make it to win awards, but to provide good living.”
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The bar-kitchen belongs to this shared field rather than being hidden as a service room. Dining and lounging can overlap, and the house can accommodate a gathering without relying on a large enclosed hall. That social flexibility is one reason the plan reads as a family residence rather than a formal showcase.
Two elevated mezzanine platforms
Private rooms are lifted above the social level on two mezzanine platforms. One holds the guest suite and the other the master suite. Raising the bedrooms creates separation without turning the house into a stack of closed boxes. From the living floor, the platforms remain part of the larger volume; from the suites, occupants retain a connection to the roof, structure and open surroundings.
The mezzanine strategy also concentrates enclosed sleeping space while leaving the ground floor porous. It is a compact response to the competing needs of privacy and collective life: bedrooms are defined, but the principal daily territory remains continuous and adaptable.
How does the roof control sun and rain?
A high, expansive thatched roof dominates the house’s section. Its eaves extend three metres, according to ArchDaily, creating sheltered space beyond the nominal walls. The roof therefore acts as both environmental equipment and additional living area: it shades the open floor, reduces direct exposure to driving rain and provides a covered perimeter where people can remain outside during changing weather.
Thatch, also called sapé in the accounts, is not presented as a decorative finish. Its thickness and high profile help separate the occupied level from the hottest roof surface, while the open sides allow warmed air to escape and breezes to enter. The sources establish the roof’s dimensions and protective role, but they do not report indoor temperature measurements, rainfall interception rates or a formal energy simulation. Those performance figures should not be invented from photographs or from the material palette alone.
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The eave as an outdoor room
The three-metre overhang blurs the boundary between interior and exterior. Instead of treating the veranda as a narrow attachment, the roof makes a deep zone of shade around the house. This is especially important when the walls are open: the eave is the first line of defense against wind-driven rain and the main device that lets the ground floor remain exposed to air without becoming unusable in wet weather.
How did Claudio House use daylight and natural ventilation?
Daylight and natural ventilation were central to the design. Casa Vogue notes that these qualities were available even before a generator was installed. That chronology clarifies the design intent: the house could support ordinary daytime activity and air movement without waiting for a dependable electrical supply.
Open sides, the elevated sleeping platforms and the high roof work together. Light reaches the broad social floor from several directions, while air can cross the plan instead of being trapped behind deep partitions. The strategy is passive in the precise sense supported by the sources: it relies on orientation, openings, height and shade rather than a documented mechanical-conditioning system. It does not prove a particular energy saving, comfort percentage or year-round temperature range.
Bernardes Arquitetura’s official Cláudio Bernardes Memory Project biography places this approach within the architect’s wider residential work, describing his attention to generous spaces, light and shade, ventilation and function. The biography also records his interest in earth, bamboo, straw, vines, wood and stone, alongside craft techniques and newer materials. Claudio House is a particularly direct island expression of those concerns because the building’s environmental behavior is visible in its section and materials.
How does Claudio House collect water?
Fresh water was limited on the island, so the house uses its broad roof as a collection surface. Rain runs from the roof into a very large cistern below the stone foundation. The cistern is not an accessory hidden somewhere on the property; it is integrated into the building’s response to the site’s infrastructure.
This arrangement links the most conspicuous architectural element—the expansive roof—to an essential household service. The roof provides shade and rain protection above while supplying stored water below. The cited sources do not state the cistern’s capacity, filtration method, treatment regime or the number of days of autonomy it provided. It is accurate to call the system rainwater harvesting for island use; it is not accurate to claim a quantified level of self-sufficiency.
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What materials were used in Casa do Claudio?
The material palette is deliberately tactile and comparatively small. Timber, including eucalyptus, forms the principal frame and arrived with the other numbered components. Rough stone makes the foundation. Thatch or sapé forms the roof. Bamboo and natural-fiber ties contribute to the lighter construction and crafted character. Casa Vogue additionally describes colored masonry and partitions made from small logs or louvers.
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- Stone: the rough base that supports the house and contains the cistern below.
- Thatch (sapé): the expansive roof covering and its deep, protective eaves.
- Bamboo and natural fibers: lightweight, craft-based elements and ties associated with the building’s assembly.
- Colored masonry, small logs and louvers: secondary partitions and surface elements described in the retrospective.
The combination is not a shopping list for reproducing the house. Materials behave differently according to species, detailing, exposure, maintenance and local labor. The documented point is that Bernardes made their origin and assembly part of the architecture rather than concealing them behind a uniform finish.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How does the house reflect Cláudio Bernardes’s architectural ideas?
Bernardes was born in Rio de Janeiro in 1949 and died in 2001, according to Casa Vogue’s retrospective. His office biography presents a practice grounded in natural materials, craft and the practical qualities of space: light, shade, ventilation and use. Claudio House demonstrates those themes without turning them into a style formula.
Its openness is functional as well as expressive. Its timber is tied to transport and assembly. Its roof is tied to rain, shade and water storage. Its mezzanines are tied to the need for private rooms inside a shared family volume. In that sense, the house’s visual identity follows from decisions about living and infrastructure.
Casa Vogue also records Andrés Gálvez, an architect who worked with Bernardes, saying: “Não se pode entender a linguagem dele sem compreender o seu conceito estrutural.” The English translation is: “You cannot understand his language without understanding his structural concept.” Claudio House makes that observation easy to test: the architectural language is inseparable from the way the roof, mezzanines, open floor, stone base and cistern are organized.
What happened to the former fisherman’s cottage?
Near the main residence, a former fisherman’s cottage was renovated as four suites. Each opens onto a timber deck facing the sea. The smaller building extends the property’s accommodation without changing the main house’s open social logic: sleeping capacity can expand into a separate structure while the principal building remains a collective gathering place.
The sources identify the cottage’s reuse and the four sea-facing suites, but they do not establish whether those suites are currently rented, privately occupied or open to visitors.
Can you visit Casa do Claudio in Angra dos Reis?
Current public access is not established in the cited sources. Casa Vogue reported that the property had passed out of the Bernardes family by 2021, but it did not establish the present owner, operating status or a visitor program. Do not treat Claudio House as a public museum or assume that photographing it from the water, entering the property or booking a suite is permitted.
Anyone considering a visit should verify authorization and current local information directly before traveling. The absence of a documented access policy is different from proof that access is impossible; it simply means the published accounts do not establish a reliable route for the public.
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Claudio House is significant because it joins four normally separate conversations. It is a family home, an experiment in remote construction, a passive environmental strategy and a piece of structural expression. The numbered timber parts and water transport answer the island’s logistics. The open ground floor and mezzanines answer family life. The high thatched roof and three-metre eave answer sun and rain. The cistern answers the lack of fresh water. None of these elements needs to be treated as a symbolic afterthought; each performs a practical job while shaping the house’s character.
That combination also explains why “tropical house” is an incomplete description. The project does not rely on climate imagery alone. Its architecture emerges from a chain of decisions about what could reach Palmeiras Island, what could be built there, how people would gather, and how the household would obtain light, air and water. The building’s informality is therefore engineered, not accidental.
Further reading
For drawings, project facts and photographs, consult Eduardo Souza’s “AD Classics: Claudio House / Claudio Bernardes” on ArchDaily. For family recollections, construction details and the account of the former fisherman’s cottage, read Cristiane Teixeira’s 2021 Casa Vogue retrospective in the Bernardes Arquitetura archive. Bernardes Arquitetura’s Memory Project biography provides context for the architect’s broader material and residential concerns.
Casa Vogue also names A arquitetura de Claudio Bernardes, a 202-page book published in 1999. The retrospective described it as out of print at the time of reporting; current availability, edition and price should be checked with a legitimate architecture-book seller or library.
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