Get inspired!

17,725 architecture projects

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

Circular Retreat Utilizing Laminated Wood and Zenithal Light

Authors:
Er-rouane Hamza, Chaymae Kriouile, Bilal Jall
Circular Retreat Utilizing Laminated Wood and Zenithal Light
Explore the full project presentation!
Subscribers only
Utilizing laminated wood and zenithal openings, this circular retreat center is designed to foster spiritual introspection while seamlessly integrating into its natural forest landscape.
5 key facts about this project
01
Circular structures enhance energy flow and promote tranquility.
02
Zenithal openings maximize natural light while connecting occupants to the sky.
03
Laminated wood provides both structural integrity and aesthetic warmth.
04
Adaptable photovoltaic panels optimize energy production throughout the day.
05
Rainwater harvesting system integrates resource efficiency into the design.

The retreat center in a forest valley in Portugal focuses on spiritual retreats, creating spaces that encourage personal reflection and growth. It is designed to connect people with nature while offering a supportive environment for therapeutic practices. Inspired by traditional clay cabins and local building styles, the design incorporates elements from human energy field systems, enhancing the holistic experience for users.

Circular Forms and Functionality

The center consists of several circular structures that accommodate two people each. These spaces are carefully arranged on a gentle slope, taking advantage of the natural landscape. Each structure serves two distinct purposes: the lower level is designed for therapeutic treatments, while the top level offers a private area for personal retreat. This setup allows participants to engage in both group activities and solitary reflection.

Spatial Dynamics and Light

A key feature of the design is its use of circular forms, which help to create a calm atmosphere. The dome-like shapes minimize stress by promoting a sense of balance and stability. Natural light plays an important role as well; zenithal openings in the roofs allow sunlight to enter and illuminate the spaces. This connection to the outdoors enhances feelings of peace and isolation, providing a comforting environment for contemplation.

Sustainability Features

The retreat center embraces sustainability through its design choices. Adaptable photovoltaic panels are installed to capture sunlight efficiently, adjusting their angle to maximize energy production. Additionally, a rainwater harvesting system channels water to storage areas beneath the building, illustrating responsible resource management. The use of laminated wood slats for the structure provides strength while maintaining a simple aesthetic.

Distinctive Architectural Elements

Every detail of the design is meant to resonate with the surrounding landscape. The circular shapes and natural lighting work together to create environments that inspire personal exploration. Each structure becomes not only a functional space but also a place for deep reflection, inviting individuals to engage meaningfully with both themselves and their natural surroundings.

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

Enter an open architecture
competition now

The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

`
Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

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

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 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

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 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
Early bird registration deadline 15 October 2025
Kinderspace

Design a kindergarten of tomorrow

Architecture for Children’s Development #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 16 October 2025
Buildner's Unbuilt Award 2025

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

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025
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
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

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