Get inspired!

17,725 architecture projects

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

Banana Fiber Roofing in Sustainable Community Housing

Authors:
Beatriz Coelho, Mariana Paoliello, José Ricardo Paoliello
Banana Fiber Roofing in Sustainable Community Housing
Explore the full project presentation!
Subscribers only
Utilizing banana fiber roofing and a gray water biofilter system, the design integrates sustainable practices into community-oriented housing that addresses urban homelessness in São Paulo.
5 key facts about this project
01
Utilizes a gray water biofilter system integrated with community vegetable gardens.
02
Incorporates banana fiber roofing to enhance sustainability.
03
Constructed with cross-laminated timber for reduced carbon footprint.
04
Includes a wet tower that houses solar heating infrastructure.
05
Designed to address homelessness in urban São Paulo through communal spaces.

Bananeira's House is located in São Paulo, Brazil, and focuses on addressing the pressing issue of homelessness in the area. The design consists of three blocks that serve different functions: social interaction, private living, and infrastructure. This thoughtful arrangement promotes sustainable living and community involvement, aiming to provide practical housing while being mindful of environmental impacts.

Design Concept

The social block includes spaces for cooking and gathering, encouraging connections among residents. The design emphasizes openness, with high ceilings that allow natural light to fill the spaces. In contrast, the private block is dedicated to sleeping and working areas, ensuring that residents have a peaceful and private environment. The careful angles and layout enhance both comfort and efficiency.

Infrastructure and Sustainability

The wet tower incorporates essential facilities, such as a bathroom and solar heating systems. This integration of necessary utilities supports the overall design, making daily living more convenient. A key feature is the "Bananeira Circle," a biofilter system that treats gray water and directs it to an area with banana trees. This design element not only manages waste but also promotes food production, linking practical solutions to environmental stewardship.

Materiality and Innovation

Material choices are a crucial part of the design. Cross-laminated timber (CLT) is used for its durability and carbon-negative properties. Wooden panels, coated with projected cork, serve to waterproof the structure. Translucent tiles made from recycled PET bottles contribute to natural lighting and energy efficiency. Braided banana tree leaves are also included in the roofing, enhancing air circulation and the overall ecological footprint.

Design Detail

Another important aspect of Bananeira's House is the inclusion of community vegetable gardens. These gardens address food security and provide fresh produce for residents. They also create opportunities for collaboration among inhabitants, fostering a sense of community as they work together in cultivating their food.

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 Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #3
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #5
MICROHOME 2026
MICROHOME 2026
100,000 € Prize Fund / Kingpsan Edition #11
The Next House: USA
The Next House: USA
20,000 USD Prize
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
Advance registration deadline 18 February 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
Rome 
Rain Rooms

Design a rain room for Rome

ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 14 January 2026
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
Iceland 
Slow Sauna

Design slow sauna in Iceland

project COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 28 January 2026
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
Advance registration deadline 18 February 2026

Recurring architecture competitions

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 Home of 
Shadows

Design a home with no artificial lighting

The light studies. Edition #4 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 14 January 2026
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
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
Advance registration deadline 22 January 2026
new
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
Early bird registration deadline 11 February 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