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Crafting Space with Rammed Earth and Bamboo Shutters in Rural Portugal

Author:
Ana Lacerda
Crafting Space with Rammed Earth and Bamboo Shutters in Rural Portugal
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Rammed earth walls and strategically placed bamboo shutters define a residence that harmonizes with the rural Portuguese landscape, maximizing natural light while creating distinct spaces for both privacy and communal living.
5 key facts about this project
01
Rammed earth walls provide thermal mass for energy efficiency.
02
Bamboo shutters allow for customizable light control and privacy.
03
Central skylight enhances daylight distribution throughout the house.
04
Design features clear delineation between private and public spaces.
05
Located in the scenic Douro vineyard region, integrating landscape with living.

The Linear Shadows House is located in the countryside of Portugal, near the Douro vineyard region. It combines thoughtful design with a focus on light and space. The residence features a clear distinction between private areas, such as the bedroom and bathroom, and public spaces, which include the kitchen, living room, and access to the courtyard. This arrangement not only serves the varying needs of its occupants but also encourages a connection to the surrounding natural landscape.

Concept and Functionality

The house emphasizes the relationship between sunlight and shadow. In the morning, light streams into the private areas, creating a calming atmosphere suitable for quiet moments. As the sun climbs higher in the sky, the public spaces bathe in warm light, fostering an inviting environment for gatherings and daily activities. Through the careful placement of openings, the design facilitates a smooth flow between spaces while taking full advantage of natural daylight. This approach enhances the house's comfort and usability.

Materials and Construction Techniques

Construction methods utilized in the Linear Shadows House reflect respect for local traditions and sustainability. The exterior is built with rammed earth and adobe, materials that provide insulation and stability. Inside, the design employs the tabique technique, combining timber and earth to create lightweight walls that promote air circulation. Using these materials demonstrates a commitment to ecological practices and strengthens the connection to the region’s architectural heritage.

Light Manipulation and Spatial Experience

The design features functional elements that greatly impact how light influences the spaces. Bamboo shutters allow for adjustable light and privacy control, giving occupants the ability to create different moods throughout the day. A central skylight highlights the importance of natural light, illuminating the interior and enhancing the overall atmosphere. This manipulation of light shapes the experience within the home, gradually merging indoor and outdoor spaces.

The Linear Shadows House showcases a thoughtful integration of its inhabitants with the natural surroundings. As one moves through the various spaces, the interplay of light and shadow creates a layered experience, demonstrating how the environment can inform and enrich daily life. Each design detail, from the control of light to the construction methods, underscores the house’s response to its context.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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Early bird registration deadline 19 November 2025

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