Get inspired!

17,725 architecture projects

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

Potato Power and Firewood Heating in a Mindful Retreat

Authors:
Panagiota Kyriakopoulou, Eirini Laina
Potato Power and Firewood Heating in a Mindful Retreat
Explore the full project presentation!
Subscribers only
Utilizing potato power for energy generation and firewood for heating, the design incorporates a urine-diverting sanitation system within a mindful retreat that emphasizes a deep connection to nature.
5 key facts about this project
01
Utilizes potato power for sustainable energy generation.
02
Incorporates a urine-diverting dry toilet system for sanitation.
03
Features a Trombe wall for passive heating and cooling.
04
Meditation spaces are aligned to the east for sunrise exposure.
05
Constructed with locally sourced firewood for heating.

The Way Up is a spiritual retreat set within a peaceful natural setting, designed to promote mindfulness and self-reflection. The overall concept focuses on creating a space that encourages a deeper connection to nature and the divine. By aligning with the rising sun, the structure positions its meditation areas toward the east, enhancing the opportunity for users to engage with the space at dawn.

Orientation and Spatial Experience

The design uses a deliberate orientation from west to east to allow individuals to meditate in harmony with the morning light. This thoughtful placement utilizes natural illumination to enrich the meditative state, offering users an experience infused with early-day energy. Upon entering, visitors are encouraged to transition by shedding clothing that symbolizes everyday life. This act fosters a psychological shift toward introspection, preparing them for a deeper engagement with their thoughts and surroundings.

Elemental Integration

The Way Up includes the four elements of nature within its elevations. The water element flows from the roof, guiding rainwater into the meditation area, representing a cleansing and restorative force. Fire is introduced through a cooking area and soft candlelight, creating warmth and intimacy. The earth aspect encourages people to feel connected to the soil and plants surrounding the retreat, while the air element is represented in an elevated resting area constructed of ropes, giving a sense of lightness and liberation.

Sustainable Systems

A Trombe wall is part of the heating system, supplemented by a firewood solution sourced from the surrounding area. This design helps maintain stable warmth, with tubes embedded beneath the floor to distribute heat effectively. The Trombe wall also allows for passive cooling by enabling the opening of lower windows. This method highlights a practical approach to temperature control in the space.

Energy and Sanitation Solutions

Lighting in the meditation area comes from LED lamps that operate without external power sources. The retreat utilizes a concept known as "potato power," where chemical interactions between metals and potato acids create energy. This solution reflects a commitment to sustainable practices. In terms of sanitation, the facility employs a urine-diverting dry toilet system that separates waste without requiring flush water, featuring ventilation pipes to manage odors and moisture. This setup demonstrates dedication to ecological responsibility.

The design emphasizes grounding elements that connect users to the earth. It invites them to interact with the natural surroundings, fostering contemplation and reflection.

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

Enter an open architecture
competition now

The Home of 
Shadows
The Home of Shadows
The light studies. Edition #4
The Next House: USA
The Next House: USA
20,000 USD Prize
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #5
Kinderspace
Kinderspace
Architecture for Children’s Development #3
The Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #3
Buildner's Unbuilt Award 2026
Buildner's Unbuilt Award 2026
100,000€ Prize / 2026

The Next House: USA — A Global Call to Reimagine the American Suburb

`
Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025

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
The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025
new
Iceland 
Slow Sauna

Design slow sauna in Iceland

project COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 26 November 2025
Concrete 
Pavilion

Design a concrete pavilion

Edition #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 27 November 2025
new
Pavilion Atlas 2026

Design a story of your country

ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 21 January 2026

Recurring architecture competitions

new
The Home of 
Shadows

Design a home with no artificial lighting

The light studies. Edition #4 ideas COMPETITION
Prize Monetary award
Eligibility OPEN TO ALL
Early bird registration deadline 5 November 2025
The Last 
Nuclear Bomb Memorial

Design a memorial that speaks to the cause of ending all nuclear weapons programs

Edition #6 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
Final registration deadline 13 November 2025
new
The Architect's 
Chair

Take a seat and make a statement!

Take a seat and make a statement! Edition #5 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 20 November 2025
Hospice - 
Home for the 
Terminally ill

Design a safe and supportive space to those struggling with a terminal illness

Edition #5 ideas COMPETITION
Prize 10,000 €
Eligibility Open to all
Final registration deadline 26 November 2025
Kinderspace

Design a kindergarten of tomorrow

Architecture for Children’s Development #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 26 November 2025
Museum of 
Emotions

Use architecture to create different emotional states

Edition #7 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
Final registration deadline 27 November 2025
Re:Form - 
New Life 
for Old Spaces

Choose a site—used, abandoned, or forgotten—anywhere in the world, and give it a new purpose

Edition #2 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 3 December 2025
The Architect’s 
Stair

Take a step and make a statement!

Take a step and make a statement! Edition #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 15 January 2026
new
Buildner's Unbuilt Award 2026

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2026 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Early bird registration deadline 26 February 2026

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

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

More information is available in our Privacy & Cookie policy