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Cylindrical Light Well with Clay Heating in Compact Microhouse

Authors:
Harun Sabljaković, Sabina Filipović
Cylindrical Light Well with Clay Heating in Compact Microhouse
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A cylindrical light well and built-in clay chimney define a microhouse that seamlessly integrates nature with functional living spaces, promoting sustainable off-grid living in a compact form.
5 key facts about this project
01
Cylindrical light well enhances natural light and spatial perception.
02
Built-in clay chimney efficiently supports heating requirements.
03
Modular "moveonetes" allow flexible organization of living spaces.
04
Circular openings frame views and connect indoor and outdoor environments.
05
Sustainable materials are sourced locally to minimize environmental impact.

The "Pinecone" microhouse offers a modern solution to living in harmony with nature, balancing function and simplicity. Located in a boreal mountain area, the design seeks to create an environment where residents can reconnect with the natural world while enjoying essential comforts. The structure draws inspiration from local plants, particularly the shapes of pine trees and pinecones.

Design Concept
The core concept features a cylindrical light well at the center of the house. This design allows for abundant natural light, contributing to an open feeling within the compact space. Surrounding the light well are various areas designed for specific purposes, such as cooking, bathing, and relaxing. This layout helps maximize usability and encourages flexibility for different activities.

Spatial Organization
The microhouse prioritizes a minimalist approach, minimizing excess furniture to enhance the connection between indoor and outdoor spaces. Large circular openings, inspired by tree hollows, frame views of the landscape and encourage interaction with the environment. These design choices promote a daily engagement with nature, enriching the living experience.

Material Use
The choice of materials reflects a commitment to sustainability and energy efficiency. A built-in clay chimney provides effective heating, contributing to overall comfort. Insulation techniques use local resources that help lower energy needs while maintaining a cozy atmosphere.

The design of the "Pinecone" microhouse is defined by the thoughtful circular openings that connect the interior spaces with the natural surroundings. These elements invite light and views into the home, creating a sense of warmth and clarity that enhances daily living.

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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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Design the next suburban home for the USA

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Early bird registration deadline 19 November 2025

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