Get inspired!

16,979 architecture projects

Learn from past Buildner architecture competition participants through our extensive project library, curated over more than 15 years!

Earth-Sheltered Longhouse Crafted From Volcanic Ash Concrete and Cross-Laminated Timber

Authors:
Ana Belčič, Klara Prošek
Earth-Sheltered Longhouse Crafted From Volcanic Ash Concrete and Cross-Laminated Timber

Project in-detail

Crafted from volcanic ash concrete and cross-laminated timber, the sunken longhouse integrates seamlessly into the Icelandic landscape while providing communal living spaces designed for social interaction and relaxation.
5 key facts about this project
01
Crafted with volcanic ash concrete for enhanced thermal performance.
02
Incorporates charred wooden shingles for weather resistance and aesthetic appeal.
03
Sunken design reduces visual impact and harmonizes with the landscape.
04
Features a bent A-frame structure for structural efficiency and spacious interiors.
05
Emphasizes communal interaction through strategically designed shared spaces.
The Granhalle project is an architectural design located near Lake Mývatn, Iceland. It aims to merge contemporary design with traditional building techniques. The project emphasizes community interaction and sustainability, facilitating social engagement through shared spaces and sensory connections to the surrounding environment. Each element of design serves a specific function, fostering both communal and private experiences.

The Granhalle comprises several distinct areas: a communal kitchen, living quarters, and recreational zones, all oriented to encourage social interaction. The layout mimics the traditional Viking longhouse, featuring long, linear spaces that provide a natural flow. The building is partially sunken into the landscape, allowing it to integrate with the earth while minimizing visual impact. This approach not only enhances thermal performance but also creates a unique spatial experience that connects occupants with nature.

Integrative Design Approaches

The use of locally sourced materials sets this project apart. Volcanic ash concrete is formulated for durability and environmental sustainability, while cross-laminated timber provides structural integrity and insulation. This choice not only reflects Iceland's natural resources but also preserves its architectural heritage. The triple-pane glass windows are strategically placed to frame views of the stunning landscape, optimizing natural light while maintaining energy efficiency.

The Granhalle's design uniquely emphasizes community living through its architectural elements. The inner hearth, serving as the central hub, is designed to encourage communal activities, from cooking to dining. This space enhances social cohesion among inhabitants, reinforcing the project’s objective of communal engagement. The diverse configurations of sleeping quarters balance privacy with the spirit of shared living.

Environmental Considerations

The architecture of Granhalle carefully considers environmental impact. By utilizing local materials and traditional methods, the design minimizes energy consumption and aligns with sustainable practices. The sunken design reduces the need for extensive heating and cooling, further adding to its ecological efficiency. The seamless integration of the building with its surroundings promotes awareness of the landscape's beauty and ecological importance.

The Granhalle project represents a thoughtful blend of tradition and modernity, providing a model for future architectural practices focused on community and sustainability. Exploring the architectural plans, sections, and details will offer additional insights into the design and functionality of this unique project. It is worth reviewing these elements to appreciate the complexity of ideas that contribute to the overall design philosophy.
Noticed a mistake?
Highlight the text and click on
Noticed a mistake

Enter an open architecture
competition now

The Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #2
Denver Affordable Housing Challenge
Denver Affordable Housing Challenge
Affordable Housing Series 19th Edition
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #4
MICROHOME
MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
Kinderspace
Kinderspace
Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025

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

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

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
Early bird registration deadline 22 May 2025
To view this project in detail,
please log in with your
Architects’ Network Plus account.
Subscription instantly unlocks all the architecture projects plus other member-only benefits:
  • Access the 16,979 Concept Library
  • Professional tools including file transfer, email, portfolio management, and more
Register now
Already a member? Log in

This website uses cookies to improve user experience and gather usage statistics.

More information is available in our Privacy & Cookie policy