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7 thousand tires became a wall in the interior of São Paulo. Casa Orgânica, built in Joanópolis, transformed discarded waste into structure, insulation, and part of the water reuse system.
The project draws attention because it replaces traditional materials with 3 thousand PET bottles and 5 thousand aluminum cans, in addition to tires filled with compacted earth. The proposal combines housing, a studio, and a sustainable construction laboratory.
The result is a house that produces part of its own energy, reuses water, and reduces consumption by up to 60 percent, showing how urban waste can gain practical function in a large-scale construction project.
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House in Joanópolis uses 7 thousand tires filled with compacted earth
The structure of Casa Orgânica was designed to utilize materials that would normally be discarded. The used tires serve as the base for the walls, filled with compacted earth to provide weight, resistance, and stability.
In addition to reusing waste, this type of construction aids in thermal comfort. The large mass of the walls helps maintain a more stable internal temperature, reducing reliance on air conditioning equipment.
The idea gained traction by combining sustainability and a simple constructive solution. Instead of treating tires as an environmental problem, the project transforms the material into an essential part of the house.
3 thousand PET bottles and 5 thousand cans complete walls and roof
The PET bottles and aluminum cans were used to fill spaces between the tires and compose different parts of the construction. These materials appear in walls, stairs, slabs, and the roof.
Reuse reduces the need for conventional inputs and demonstrates an alternative construction method based on high-volume waste. The project also includes a green roof, a vegetable garden, and skylights to increase natural light entry.
As a result, the house combines material reuse, natural lighting, and lower energy consumption. The proposal does not depend on a single technology, but on the sum of several simple solutions.
According to Recicla Sampa, the house recycles water up to twice
According to Recicla Sampa, a Brazilian portal with information on urban recycling, Casa Orgânica reuses water up to twice and can reduce consumption by up to 60 percent compared to a conventional house.
The system involves rational water use and staged reuse. In practice, water that has already served one function can return to the cycle for uses that do not require fresh water.
This point is one of the most important aspects of the project. In a common house, much of the used water is discarded after a single use, while Casa Orgânica’s proposal extends its utilization before final disposal.
Own energy comes from the sun and reinforces the construction’s autonomy
Casa Orgânica was also designed to generate its own energy. The most cited solution is the use of solar energy, which reduces reliance on the electricity grid and strengthens the property’s autonomy.
The house also uses passive comfort features, such as skylights and a green roof. These elements help control temperature, ventilation, and lighting without relying solely on electrical equipment.
The combination of energy generation, lower water consumption, and waste reuse transforms the project into a sustainable construction showcase. The impact goes beyond the house and reaches the debate on low-waste housing.
Idea born from travels became a model of conscious construction
Casa Orgânica was conceived by Vera and Yuri Sanada, who gathered travel references and international experiences to create a space focused on sustainable living. The construction began to take shape in Joanópolis, in a rural area near the Jaguari dam.
The project was conceived as a house and studio, but also as a replicable example. The intention was to show that waste such as tires, bottles, and cans could be used in constructions in a functional way.
This model resonates with communities, municipalities, and initiatives seeking cheaper and less polluting alternatives. The house shows that sustainability can move beyond discourse and into the physical structure of a construction.
60 percent water reduction changes the environmental footprint of housing
The figure of 60 percent reduction in water consumption is the point of greatest practical impact for the reader. In a scenario of pressure on water resources, reusing water within the home ceases to be a detail and becomes a strategy.
Casa Orgânica also draws attention for the volume of reused waste. There are 15 thousand main items including tires, PET bottles, and cans, not counting other materials used in flooring, roofing, and finishing.
By transforming waste into walls, insulation, and infrastructure, the project shifts the idea of disposal. What would be an environmental liability becomes part of the solution.
Casa Orgânica shows that a home can reduce consumption, generate energy, and reuse materials on a large scale. It’s not just a different house, but an example that challenges the traditional construction model.
In the interior of São Paulo, tires, PET, and cans cease to be urban waste and become habitable structures. The initiative broadens the debate on waste, water, and energy and changes the strategic understanding of sustainable construction.
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