According to data from United Nations Environment Program (UNEP)the construction sector represented the 37% of global greenhouse gas emissions in 2022. Reducing the environmental impact of construction is therefore a priority to tackle the climate crisis. It is precisely in this context that the Pneumo Planet Earth Housea semi-underground house designed by the Austrian startup Pneumocell. The structure recalls the homes of the Hobbits imagined by JRR Tolkien, but is not limited to a simple aesthetic appeal: it is in fact conceived to be ecological, economical and fit for a low-emissions future.
Built without polluting materials, this house uses technologies that allow you to live without resorting to heating systems powered by the electricity grid, instead exploiting the natural resources available on site.
The Pneumo Planet Earth House is based on technology initially developed for a lunar habitat designed by Pneumocell for the European Space Agency (ESA). The structure is composed of double layer inflatable membranesmade of polyamide and covered in TPU, a light but resistant material, capable of guaranteeing insulation and stability.
The house is designed to be semi-undergroundexploiting the surrounding soil as a natural insulator. The internal pressure is kept stable through a ventilation system powered by solar energy or, alternatively, by a connection to the grid.
One of the strong points of this house is the modularity: it can be easily expanded, adding new rooms that can be customized in shape and size. A practical approach that makes it suitable for different housing needs.
Natural insulation: soil as a resource
One of the most interesting features of the Pneumo Planet Earth House is the heat management. The house does not require a conventional heating system: the surrounding soil acts as a natural accumulator of thermal energy.
During the summer, the soil stores heat which is then gradually released in the winter months. This, combined with solar energy collected by photovoltaic panels, allows a stable internal temperature to be maintained between 20 and 24°C throughout the year, without resorting to systems powered by the electricity grid.
To stabilize the structure and encourage the growth of vegetation, the soil in which the house is buried is reinforced with a small percentage of cement (2%). A minimal intervention, designed to respect the environment.
Compared to traditional concrete or brick homes, this house requires significantly less use of resources, thus resulting in more ecological and economical. According to data provided by Pneumocell, every square meter built with this technology saves up to 1,700 kWh of energyfor a total of 170,000 kWh on a 100 m² house.
Construction costs are also significantly reduced: the price per square meter is lower by around 1,000 euros compared to conventional homes. A detail that makes this housing solution accessible to a wider segment of the population.
However, the project is still in development. Pneumocell is looking for partners and investors to bring this idea to the market, making it a real housing alternative for those who want to live more sustainably.
