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Thermal Mass and Coastal Integration in a Sustainable Timber Retreat

Authors:
Marin Petković, Laura Ibrahić
Thermal Mass and Coastal Integration in a Sustainable Timber Retreat

Project in-detail

Incorporating locally sourced stone and a steel frame, this cabin offers a seamless connection to its coastal environment while providing a multifunctional space for relaxation and outdoor living.
5 key facts about this project
01
Incorporates cross-laminated timber panels for structural efficiency and sustainability.
02
Utilizes charred wooden shingles for enhanced durability and fire resistance.
03
Features a bent A-frame design that optimizes natural light and views.
04
Incorporates locally sourced stones for thermal mass and aesthetic integration.
05
Designed for seasonal adaptability to ensure year-round functionality.

### Overview

Located along the Baltic Sea coastline, the cabin design project aims to harmonize human habitation with the natural environment. Its innovative approach caters to the diverse needs of users while responding effectively to the region’s climatic and geographic characteristics, including strong coastal winds and dense forests. The design prioritizes sustainability through the thoughtful selection of materials and a framework that respects its natural surroundings.

### Spatial Strategy

The cabin features a versatile geometric framework supported by an exposed steel structure and large wooden panels. This configuration allows for a variety of arrangements, accommodating functions ranging from a compact wooden tent to a more open, secluded space. The interior layout is carefully considered, with a central area designated for multifunctional use—sleeping and dining—with movable components to enhance flexibility. Additional spaces include provisions for outdoor cooking and storage solutions for water and equipment, which integrate utility and comfort.

### Material Selection

Construction materials are sourced sustainably to reflect the local context. Predominantly local timber contributes warmth to the cabin, aligning with traditional building practices. The steel framework provides structural integrity while facilitating expansive openings to enhance the visual connection to the surroundings. Additionally, stones collected from the beach are used strategically to create a drainage layer, improve thermal mass, and further integrate the cabin into the coastal landscape. This deliberate choice of materials emphasizes environmental sensitivity and responsible resource management.

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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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