Get inspired!

17,725 architecture projects

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

Mushroom-Inspired Sanctuary for Mindful Meditation in Corporate Tokyo

Authors:
Chris Jarrett, Peter Wong, Jesse Lohman
Mushroom-Inspired Sanctuary for Mindful Meditation in Corporate Tokyo
Explore the full project presentation!
Subscribers only
Crafted from sustainably grown mushrooms and displaying vibrant artwork, this meditation space in Tokyo's corporate plaza offers a serene retreat for workers seeking relief from daily pressures.
5 key facts about this project
01
Meditation space integrates sustainably grown mushrooms as a core material.
02
Exterior features vibrant mushroom motifs by artist Yayoi Kusama.
03
Interior surfaces are designed for various resting postures, promoting comfort.
04
Sound-dampening properties are enhanced by the use of mycelium.
05
Strategically located in Tokyo's busy corporate plazas for easy accessibility.

REST ROOM is a meditation space designed to improve mental wellness among workers in Tokyo's busy corporate environment. Located in corporate plazas such as Marunouchi, Meguro, Shinagawa, and Shibuya, it serves as an important refuge for individuals facing the daily pressures of their jobs. The overall design aims to blend functionality with an artistic touch, encouraging a healthy balance between work and relaxation in the urban landscape.

Material and Aesthetic Considerations

Metallic screens on the exterior feature vibrant mushroom patterns created by artist Yayoi Kusama. These screens not only add visual interest but also signal the purpose of REST ROOM to passersby. The contrast between the lively exterior and calm interior is a key point of the design, creating an inviting space that fosters both art and rest.

Interior Experience and Comfort

Inside, REST ROOM focuses on comfort through sculptural surfaces that accommodate various resting positions. Spaces for sitting, lying, and leaning are thoughtfully arranged, inviting users to interact and unwind. The transition from the active plaza to the tranquil interior is deliberate, ensuring that visitors feel a significant change in atmosphere, which promotes relaxation.

Sustainability and Functionality

Sustainably grown mushrooms form an integral part of the design, highlighting the project's environmentally friendly approach. Mycelium is used not only for its ecological benefits but also for its ability to absorb sound, enhancing the comfort within the space. This focus on sustainability reflects a growing awareness within architecture about the relationship between buildings and their environments.

Illumination and Atmosphere

At night, LED lights enhance the sculptural elements, creating a warm and welcoming environment. This careful lighting design contributes to a sense of safety and calm, making it an appealing place for people to pause and recharge. The attention to atmospheric detail helps make the space a true haven in the midst of the city’s fast pace.

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 #3
Kinderspace
Kinderspace
Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
The Home of 
Shadows
The Home of Shadows
The light studies. Edition #4
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #5

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
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