Get inspired!

17,725 architecture projects

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

Geothermal Integration and Lavacrete Cladding in a Sustainable Coffee House

Author:
Zechariah Fung
Geothermal Integration and Lavacrete Cladding in a Sustainable Coffee House
Explore the full project presentation!
Subscribers only
Using Lavacrete cladding and cross-laminated timber, the design embraces the volcanic landscape while providing a sustainable gathering space for visitors to enjoy Iceland’s unique geothermal environment.
5 key facts about this project
01
Emphasizes geothermal integration through Earth-sheltered design.
02
Uses Lavacrete, crafted from local aggregates, for sustainable cladding.
03
Incorporates cross-laminated timber for rapid construction and energy efficiency.
04
Mimics traditional turf homes to connect with Icelandic architectural heritage.
05
Features large openings to enhance natural light and landscape views.

The Iceland Volcano Coffee Shop is located within Hverfjall, a large volcanic crater in northern Iceland. The site is characterized by its unique landscape formed by volcanic and geothermal activity, which has shaped its surroundings over time. The design of the coffee shop reflects a commitment to connect with this environment while drawing inspiration from the local architectural heritage. The building serves both as a gathering space for visitors and as a representation of the region’s cultural identity.

Architectural Inspiration
The design draws from traditional turf homes, known as Torfbaeir, which have deep historical roots in Iceland dating back to the Viking age. These homes were built using local materials, such as uncut stone and timber, and were designed to protect against the harsh Icelandic climate. The coffee shop reflects this traditional approach by using forms that integrate with the landscape, effectively minimizing its impact on the environment while enhancing thermal performance.

Materials and Sustainability
At the core of the design is the use of cross-laminated timber (CLT), a pre-fabricated building system that offers structural benefits and sustainability. CLT is the main framing material for the coffee shop, allowing for quicker construction and providing insulation that improves energy efficiency. The design of the panels helps maintain a comfortable ceiling height and contributes to overall energy-saving features.

Connection to the Landscape
The exterior of the coffee shop is clad with Lavacrete, a composite material developed on-site that blends well with the volcanic surroundings. This choice of material highlights environmental considerations, as it uses local aggregates sourced from the construction site. By doing so, the building reduces its carbon footprint and visually connects with the natural landscape.

Functional Layout
The layout of the coffee shop is thoughtfully designed to create clear areas for different activities, such as a reception space, coffee bar, and roasting section. This planning promotes easy movement throughout the building and enhances the overall experience for visitors. Large windows and openings allow plenty of natural light to enter, encouraging a connection with the landscape outside while creating a welcoming atmosphere.

The integration of these design elements allows the coffee shop to frame views of the surrounding crater, fostering a strong connection to the unique geological and cultural aspects of Hverfjall. Visitors can engage with the natural beauty of the area while enjoying a space that reflects both the past and the future of architecture in Iceland.

Noticed a mistake?
Highlight the text and click on
Noticed a mistake

Enter an open architecture
competition now

Kingspan MICROHOME 2026: Building Less to Create More

`
Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

Open architecture competitions

  • Closest deadline first
  • Project competitions first
    Selected winning projects have the potential to be constructed
  • Ideas competitions
    Experimental competitions with the focus on pushing the boundaries of creativity
New York High Falls 
Riverfront Market

Design a New Riverfront Market in Rochester, New York

ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 7 October 2026
Valli Wine 
Tasting Room

Design a wine tasting room in Italy

project COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 8 October 2026
The 
Quiet 
Tower

Design an observation tower in Latvia

project COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 15 October 2026
Vancouver 
Tall Challenge

Design the future of Vancouver’s skyline

Building higher downtown ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 29 October 2026
The Oak 
Moon 
Pavilion

Design a yoga pavilion in Italy

project COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 5 November 2026
Portugal Long Table 
Restaurant

Design a slow-living restaurant in Portugal

project COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 9 December 2026

Recurring architecture competitions

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026
Kinderspace

Design a kindergarten of tomorrow

Architecture for Children’s Development #4 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 28 October 2026
Museum of 
Emotions

Use architecture to create different emotional states

Edition #9 ideas COMPETITION SILENT CONTEST For this competition, NO DESCRIPTION TEXT is allowed. The architecture ideas must be communicated strictly with visuals.
Prize Monetary award
Eligibility Open to all
Advance registration deadline 12 November 2026
The 
Architect's 
Chair

Take a seat and make a statement!

Stockholm Furniture Fair Edition #6 ideas COMPETITION
Prize Monetary award + Exhibition at Stockholm Furniture Fair
Eligibility Open to all
Final registration deadline 3 December 2026
new
Buildner's Unbuilt Award

Celebrating your unbuilt architecture visions with a 50,000€ prize

50,000€ Prize / 2027 ideas COMPETITION
Prize 50,000 €
Eligibility Open to all
Early bird registration deadline 4 February 2027

Media, partners and clients

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 17,725 Concept Library
  • Professional tools including file transfer, email, portfolio management, and more
Register now
Already a member? Log in