IWT is a boutique architectural design office based in Rotterdam. We explore our changing surroundings, design spatial narratives and build architectural solutions for private, public and commercial clients. We were a.o. finalists of the ARC17 Young Architect Award and of the Next Step Award - Young Top Talents of the Netherlands.

We believe our surroundings are a constantly evolving, interacting network of highly diverse players, therefor we design dynamic narratives and environments - from small scale interiors to large scale architectural urban projects - and spatial brand identities open for interpretation and adaptation over time.

With rapid urbanisation, increasing density, digitalisation and artificial intelligence comes an increased need for a cognitive sensitivity in our human surroundings – the environment that surrounds us. We enter the human age.

With projects ranging from inner-city development, strategic narrative design for large scale urban developments and governments, architecture, branding strategies, interior and design, we know how these scales interact on our spatial perception of a place.

IWT is founded in 2013 by Bastiaan Kalmeyer and Chantal Schoenmakers and is embedded in a flexible, collaborative network of strategic advisors, urbanists, architects, interior architects, designers, artists, engineers and scientists.

Since 2020, Bastiaan Kalmeyer continues as head of the design agency, where Chantal Schoenmakers is now director of The Huidenclub in Rotterdam, a new experimental platform dedicated to contemporary culture.

Since 2023, House of fundamental is founded together with Chef Merel Charlotte Beelenkamp, exploring the fundamentals of gastronomy. Resulting ao. in a Chef’s Atelier (fundamental.restaurant), collectible design objects to support, enhance and elevate the gastronomic experience (fundamental.objects) and scents (fundamental.fragrances). (read more)