The contemporary home

This competition is part of a strategic partnership between Buildner and ArchDaily that aims to explore "The Contemporary Home".

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As cities expand, vertical and horizontal spaces are continually redefined, adapting to the pressing demands of urban living. Yet, beneath the expanse of our infrastructure lies a matrix of underutilized spaces, often overshadowed by their towering counterparts - the bridges that stitch our cities together. These underbridge spaces, ranging from small niches to vast expanses, remain dormant, echoing the hum of the traffic above, waiting for visionaries to tap into their latent potential.

In our relentless pursuit to address urban housing needs, Buildner is proud to unveil its 17th competition in the Affordable Housing Series. This time, we venture into the overlooked and underexplored – diving deep into the spaces beneath bridges around the world. "The Underbridge Housing Challenge" beckons architects and visionaries globally to reimagine these spaces, to transform them into dynamic, thriving communities that resonate with the city's.


Beneath city bridges worldwide lies untapped potential, vast spaces brimming with opportunity. Buildner is searching for designs that can cater to a wide array of residents, ensuring a perfect blend of scalability, affordability and eco-consciousness. It's an invitation to revolutionize these overlooked spaces with a fresh, practical perspective.

Participants have the liberty to pinpoint any underbridge site across the globe for their visionary designs. Essential considerations include the site's accessibility, available amenities, and how the proposed solution harmonizes with the existing community. The designs should showcase adaptability, ensuring they cater to various needs while remaining both cost-effective and sustainable.

With this challenge, the boundaries are set by your own creativity. Buildner urges entrants to think big, think different, and present housing solutions that challenge the norm. The underbridge spaces await your transformative touch. Let your imaginations run wild, and let's craft a vision where these spaces become the heartbeat of urban communities.

Download the full competition brief for more information! 

Competition is open to all. No professional qualification is required. Design proposals can be developed individually or by teams (4 team members maximum). Correspondence with organizers must be conducted in English; All information submitted by participants must be in English.

The full competition brief

The full competition brief can be downloaded as often as required; no additional information will be provided after registration.

(!) Full Competition Brief



7,000 €


3,000 €


1,500 €


1,000 €


1,000 €

(more details)


500 €

(more details)

6 honourable mentions & certificates

Buildner will acknowledge the outstanding performance of all winners and honourable mentions with Certificates of Achievement.

Publicity campaign

The Buildner’s extensive global publicity campaign for the competition winners:

Buildner's two million

The results are published on, a leading website in the architecture industry, attracting over one million unique visitors annually. Additionally, the campaign extends to Buildner's social networks, which boast over 800,000 followers combined, and through newsletter campaigns reaching over 200,000 subscribers.

Interview and movie

Winners will have the opportunity to submit a movie and an interview, boosting their recognizability and helping to build their name in the industry.

Extensive media network

Buildner leverages an extensive network of media industry leaders to publish the competition results. This broadens the audience further, ensuring that participants' work is showcased across multiple platforms known for their influence and reach in the architecture and design sectors.

Key dates

Send reminders


Jury members shall under no circumstances be contacted by competition participants or their representatives. Participants who attempt to contact jury members, shall be disqualified.

All jury members are involved in the evaluation based on their availability at that time. All communication regarding the competition should only be carried out with Buildner staff. For any questions please contact us on [email protected]  

Cas Esbach



Philippe Fouche

Director and Architect, SAOTA

South Africa

Avi Friedman

Professor at McGill University


Luise Marter

KWY studio


Nicolas Sterling

Co Founder and Director, Sterling Presser Architects and Engineers


Elke Sterling-Presser

Co Founder and Director, Sterling Presser Architects and Engineers


Blake T. Smith

BIG – Bjarke Ingels Group

United States

Renyi Zhang



Andreas Tjeldflaat

Founder, Framlab


Samista Jugwanth

Associate and shareholder


To register, simply click on "Register Now," fill out all necessary fields, select your preferred payment method, and submit your details. You will be redirected to PayPal or a card payment gateway to settle the competition fee. Upon confirmation of your payment, we will send you an email containing your Unique Identification Code (UIC). You must then log in to your Buildner account using your credentials and validate your UIC to complete the process. Learn more here -
You can add/remove/edit team member information as often as you want in the upload panel, up until the submission deadline. Learn more here -
Yes. If the jury panel selects a Student award's submission for the top 3, it will automatically be awarded both prizes.
Yes. If the jury panel selects a Sustainability award's submission for the top 3, it will automatically be awarded both prizes.
No. Competition entries are evaluated anonymously. The participant registration type is only revealed upon the announcement of the results.
Please contact us – [email protected] and we will address the problem directly.
The short answer is yes, you may submit a previously published design concept as long as you are the author. Before re-submitting your project, please carefully read the following clarification points listed here -
As AI-generated images may be based on pre-existing work or generated using proprietary algorithms, it is best to check the specific terms and conditions of the AI tool used to generate the image to determine its ownership status. It may also be necessary to seek legal advice to fully understand the ownership rights and any restrictions that may apply. In general, it is not recommended to consider AI-generated images as your sole work or intellectual property unless you have obtained explicit permission to do so.