Get inspired!

17,725 architecture projects

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

Hexagonal Living Units on Reinforced Concrete Pontoon with Photovoltaic Energy System

Authors:
Veronika Luisa Dandl, Flavia Thalisa Gütermann
Hexagonal Living Units on Reinforced Concrete Pontoon with Photovoltaic Energy System
Explore the full project presentation!
Subscribers only
Hexagonal housing units arranged on a reinforced concrete pontoon utilize photovoltaic panels for energy production and feature a multifunctional fireplace, all designed to foster community living on water.
5 key facts about this project
01
Hexagonal arrangement maximizes communal interaction while ensuring individual privacy.
02
Flexible three-anchor system allows the pontoon to adapt to varying water levels.
03
Multifunctional fireplace combines heating and cooking functions in one element.
04
Closed water circuit system utilizes reverse osmosis for efficient resource management.
05
Photovoltaic panels provide renewable energy, enhancing the self-sufficiency of units.

The "Honeycomb" project serves as a contemporary solution for communal living on water, designed for the specific challenges faced by the Netherlands. With large portions of the country below sea level, the project addresses key issues related to climate change and rising sea levels. The design is organized around small, modular housing units that are arranged in a hexagonal pattern on a reinforced concrete pontoon. This layout promotes a sense of community while providing individual living space.

Architecture Concept

The overall design focuses on modularity and flexibility. The hexagonal arrangement creates a sense of unity among the residents while allowing for private areas. The pontoon is anchored by a flexible three-anchor system, which helps it adapt to the changing water levels. This structure not only provides stability but also reflects the need for living arrangements that can respond to an ever-changing environment.

Living Space and Functionality

Each housing unit features an open-plan layout that emphasizes space and practicality. The only enclosed area is the bathroom, which is centrally located. This design choice maximizes the utility of the space available. A multifunctional fireplace occupies a central position in the living area. This fireplace serves both to provide heat and to facilitate cooking. Combined with a hybrid gas cooker, it supports daily living activities while encouraging social interaction among residents.

Sustainability and Resource Management

Sustainability is a key focus of the Honeycomb project. The roofs of the housing units are fitted with photovoltaic panels that collect renewable energy. This energy is stored in Lithium-Ion batteries located beneath the floor. Additionally, a closed water circuit system utilizing reverse osmosis helps manage water supply and disposal. This efficient approach to resources demonstrates a commitment to sustainability and responsible living.

Community Engagement and Connectivity

The design encourages community interaction by positioning the units in a way that promotes movement among residents. A footbridge surrounds the pontoon, enhancing accessibility and serving as a space for gathering. This layout is particularly relevant in today's world, where many people live alone or in smaller families. By creating opportunities for social connection, the design addresses the potential for isolation.

Incorporating features like hexagonal housing units and multifunctional fireplaces, the project aligns with contemporary needs for sustainability and community engagement. It offers a practical way to live in a changing environment while fostering connections among its residents.

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

Enter an open architecture
competition now

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 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
MICROHOME 2026
MICROHOME 2026
100,000 € Prize Fund / Kingpsan Edition #11
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

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 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
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