Proof of Concept

Proof of Concept
Cover image missing

Proof of Concept is a dynamic exhibition platform exploring the intricate and captivating processes behind design. Showcasing work from a collective of multidisciplinary studios, it highlights self–initiated projects, products that never reached the market, and designs already in circulation. By shedding light on the extensive development process, the exhibition offers a rare glimpse into the evolution of a product—revealing the ideas, challenges, and creativity that shape its journey.

Proof of Concept — Connect is an exhibition that explores how materials, processes, construction and craftsmanship shape our relationship with everyday objects. Designers are invited to consider the role of tactile experiences, traditional techniques, and innovation in forging deeper connections between makers, users, and the spaces we inhabit. Through this exploration, the exhibition celebrates the tangible bonds that bring design to life.

Related Exhibitions
For the first time, inter.agcy and 3daysofdesign present GROUPED—a new curated showroom concept and exhibition in the latest Design District, Islands Brygge. Working with varying intentions and practices, this selected group of designers are united through their keen attention to detail, rigorous design processes, and a shared interest in materiality. GROUPED takes place in a vibrant courtyard with a rich, industrial history. Hidden in a elegantly renovated space, the juxtaposition between rough exteriors and refined interiors gives way to an  engaging and memorable experience.
GROUPED
April 21, 2026
Furniture
Accessories
Lighting
Materials
Paper Collective is a Copenhagen–based curator and creator of exclusive collections across art, craft and design. Expressed through a collection of art prints and acoustic panels, objects and modular systems designed to display them—each piece is proudly produced in close collaboration with a growing network of creatives, craftspeople and like–minded brands. Closely linked with the design industry from their 2013 foundation, Paper Collective collaborates with some of the industry's biggest talents including Alfredo Häberli, Norm Architects and Raw Color, to create expressions that provide that finishing touch within contemporary interiors.
Paper Collective
November 7, 2024
Wall & Surface
Accessories
Part of 2025
Part of 2026
Hévéa House is a French design house rooted in a cultural dialogue between Europe and Southeast Asia. Inspired by a literary journey to Malaysia and the enduring presence of the Hévéa tree (rubber tree), the brand transforms a shared history into contemporary design. Its biophilic furniture combines sculptural clarity with functional purpose, connecting memory, material and modern living. Each collection reflects a quiet awareness of time, change and nature’s resilience. Hévéa House believes design should make each moment matter—balancing poetry, structure and sustainability in timeless interiors.
Hévéa House
January 22, 2026
Furniture
Part of 2026
Koukos de Lab is a material–driven design studio based in Lesvos, Greece, exploring sustainable design through research, experimentation, and local production. The studio develops innovative materials and objects by transforming agricultural by–products into meaningful design resources. At the core of its practice is Koukoutsi, an eco–material made from the final waste of olive oil production, primarily olive cores and pips. Designed as a sustainable alternative to conventional materials, Koukoutsi combines durability, water resistance, and a distinctive tactile quality. Suitable for objects, furniture, and surface applications, it reflects Koukos de Lab’s commitment to circular design and responsible material transformation today, locally.
Koukos de Lab
January 26, 2026
Accessories
Furniture
Materials
Lighting
Part of 2026
Other Exhibitions
Rooted in craftsmanship and architectural principles, Nordiska Kök continues to push the boundaries of design, always with a focus on sustainable materials, thoughtful details, and design that stands the test of time. With all kitchens and interior designs produced in its own joinery in Sweden, Nordiska Kök creates made–to–order and fully bespoke designs shaped by material awareness and careful detailing, with delivery across Europe.
Nordiska Kök
February 2, 2026
Søuld is an innovative Danish material manufacturer committed to providing carbon-storing and recyclable acoustic materials made from eelgrass to forward-thinking designers, builders and end-users. Søuld produces functional and beautiful alternatives to traditional building materials, while improving human health and well-being. Søuld’s eelgrass products originate from the sea—a place you are never far from in Søuld’s native Denmark. The organic material embodies the same sense of calm provided by the sea and when taken indoors, it imbues living spaces with a restorative connection to nature.
Søuld
January 31, 2024
Galleri Sonja is visiting from Bornholm. Once a saddle maker’s shop from the early 1800s, Galleri Sonja is now a place where craft, culture, and community meet in the gentle rhythm of slow living. The gallery is not only a space for experiencing art, it is also a space where knowledge of craft is shared and passed on. Through exhibitions and conversations, Galleri Sonja helps preserve and expand understanding of traditional and contemporary craft. Inspired by Bornholm’s nature and light, its tactile materials resonate with works by local and international artists. During 3daysofdesign, you can visit Galleri Sonja in Kvindernes Bygning.
Galleri Sonja
February 24, 2026
Atelier Vierkant is a Belgian family–run ceramics studio, founded in 1992 in Ostend and recognised for its handcrafted design pots that combine artisanal tradition with contemporary aesthetics. Every clay piece is made, shaped and fired in Belgium, ensuring full traceability and a unique character that bears the signature of its maker. With an understated, organic design language and natural earthy tones, Atelier Vierkant pots function as both functional planters and architectural sculptures for indoor and outdoor settings. The brand’s creations have achieved international acclaim, gracing luxury residences, prestigious hotels and global design projects, while retaining uncompromising commitment to craftsmanship and quality.
Atelier Vierkant
November 12, 2025
×
Proof of Concept
Check back soon!