Get inspired!

17,725 architecture projects

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

Vertical Farming and Corrugated Metal in a Compact Urban Habitat

Authors:
Danielle Lee, Nicholas Ho, Alithea Chang, Shannon Wong
Vertical Farming and Corrugated Metal in a Compact Urban Habitat
Explore the full project presentation!
Subscribers only
Constructed with a unique hexagonal shape and clad in recycled corrugated metal, this micro-apartment incorporates vertical farming and rainwater harvesting, providing an efficient living solution in the heart of Singapore's urban landscape.
5 key facts about this project
01
The design employs a skewed hexagonal form to enhance interior spatial dynamics.
02
Rainwater harvesting systems are integrated to promote sustainable water usage.
03
Vertical farming walls are incorporated for residents to grow their own food.
04
The exterior features corrugated metal sourced from recycled shipping containers.
05
Rockwool insulation is used to improve thermal efficiency and reduce energy consumption.

The Hachi Home is a micro-apartment designed for urban living in Singapore, addressing the demands of contemporary residential spaces. Located in a busy city known for its tropical weather, the project aims to create a living environment that is both adaptable and sustainable. The design focuses on providing flexible spaces suitable for young professionals, particularly in light of the challenges that arose during the Covid-19 pandemic.

Architectural Form and Layout

The architecture features an extruded hexagonal shape with slant walls that expand the interior space. This unique design allows multiple units to fit together efficiently, both vertically and horizontally, depending on site conditions. The layout fosters a sense of community while responding to the challenges of compact living.

Sustainable Features

Sustainability is a key focus of the Hachi Home. The project includes solar-powered energy systems and mechanisms for harvesting rainwater. These elements reduce the reliance on traditional energy sources and promote efficient use of resources. Such features are increasingly important in urban areas that experience heavy rainfall and high energy demands.

Materiality and Construction

Material selection plays a vital role in the Hachi Home’s design. The exterior uses corrugated metal that comes from recycled shipping containers, offering durability and protection from weather conditions. A zinc coating is applied to this metal, which helps prevent rust. Framed corrugated polycarbonate windows contribute to natural light within the space and require less maintenance than traditional windows.

Integration of Nature

Incorporating elements of nature is another distinctive aspect of the Hachi Home. It features vertical farming walls that allow residents to grow their own produce. This not only enhances the living experience but also improves air quality and helps with cooling, addressing urban heat challenges effectively.

The interior design uses recycled pallet wood for cabinetry and furnishings, demonstrating a commitment to sustainability. Rockwool insulation is also included in the construction, enhancing the thermal performance of each unit. These design choices reflect a comprehensive approach to creating an energy-efficient and environmentally responsible living space.

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