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Octagonal Microhome Constructed With Structural Insulated Panels for Sustainable Living

Author:
Donald S Springer
Octagonal Microhome Constructed With Structural Insulated Panels for Sustainable Living

Project in-detail

Constructed with structural insulated panels, this octagonal microhome combines energy efficiency with modular design to create an adaptable living space focused on sustainability.
5 key facts about this project
01
Constructed with structural insulated panels, ensuring high energy efficiency.
02
Utilizes a unique octagonal footprint to maximize interior space and natural light.
03
Incorporates a rainwater harvesting system for sustainable water management.
04
Features modular design options that allow for flexible living arrangements.
05
Integrates passive heating and cooling strategies through operable transoms.

## Project Overview

Located in Westport, Connecticut, the Microhome architectural design project addresses the urgent need for affordable housing by integrating principles of sustainability, community cohesion, and adaptability. Spanning 6.5 acres, the site is well-positioned among single-family residences and natural preservation areas, with convenient access to public transportation, facilitating connections to urban amenities.

## Spatial Efficiency and Design Intent
The Microhome features an octagonal layout that emphasizes efficiency by minimizing exterior surface area, leading to reduced energy consumption and construction material usage. The design allows for ample natural light through strategically placed windows, enhancing the living environment while decreasing reliance on artificial illumination. Interior spaces are adaptable, with a multifunctional living area, energy-efficient kitchen solutions, compact bathroom facilities, and flexible sleeping arrangements that maximize utility based on individual needs.

## Sustainable Materials and Environmental Strategies
Sustainability is a cornerstone of this project, employing Structural Insulated Panels (SIPs) for structure and insulation. The walls are 450mm thick and include triple-glazed windows and vented light monitors to optimize daylight and minimize thermal loss. Additional strategies involve the integration of rainwater harvesting systems, Trombe wall systems for solar heat capture, and passive heating and cooling methods. The inclusion of photovoltaic panels on the roof further enhances energy efficiency, while considerations for using 3D printing technology in prefabricated components illustrates a commitment to innovative material practices.

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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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