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Conical Retreat Crafted from Local Soil and Cement

Authors:
Letizia Spigarelli, Laura Zoppis, Kevin Kleyla
Conical Retreat Crafted from Local Soil and Cement

Project in-detail

Constructed with local soil and cement, the conical form of this retreat enhances natural ventilation and sunlight, providing a sustainable living space that integrates seamlessly with the Puglian landscape.
5 key facts about this project
01
Conical roof design optimizes light and ventilation.
02
Constructed using locally sourced soil, enhancing ecological integration.
03
Central millwork consolidates multiple living functions efficiently.
04
Incorporates a rainwater harvesting system for sustainability.
05
Outdoor spaces encourage interaction with the surrounding landscape.

The Solar Lantern is an architectural creation located in Puglia, Italy, designed as a retreat for young professionals. It blends the idea of sustainable living with elements of local architectural tradition. The structure features a tapered conic form inspired by traditional Apulian trulli, which helps create an efficient flow of natural light and air.

Architectural Form
The most noticeable aspect of the Solar Lantern is its conical shape. This design maximizes ventilation and allows sunlight to fill the space. The roof is angled to capture sunlight during winter months while minimizing heat exposure in summer. This thoughtful design enhances comfort indoors and serves as a natural indicator of the seasons, reminding inhabitants of the changing daylight throughout the year.

Interior Organization
Inside, a central millwork element defines how the space is organized. It combines essential functions such as the kitchen, bathroom, and living areas into one coherent layout. This centralization promotes efficient use of space and offers flexibility. Residents can adapt the area to suit different activities, balancing personal privacy with opportunities for social interaction.

Material Utilization
The structure uses materials that come from the surrounding area, specifically local soil, cement, and bricks. These materials connect the building to its environment and align with historical construction techniques. They are chosen not only for their availability but also for their ability to help keep indoor temperatures comfortable year-round. Using these materials also emphasizes a commitment to sustainability.

Sustainable Features
In addition to its basic structure, the home includes a rainwater harvesting system that supports efficient water use. This reflects a thoughtful approach to environmental responsibility. Alongside solar panels that can be positioned according to the sun’s path, these features allow the building to lessen its impact on the environment while providing necessary resources for everyday living.

Outdoor spaces play a crucial role in the design, encouraging residents to engage with nature. These areas serve as extensions of the indoor living space, providing room for relaxation and social gatherings. The open layout invites interaction with the natural surroundings, enhancing the overall living experience and connecting residents to their landscape.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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