External Reference is a design studio in Barcelona and Dubai. We craft immersive spaces by merging craftsmanship, technology, and experiential design.

A senior architect specializing in residential design, with international experience leading projects at External Reference. Currently pursuing a PhD in Architecture at the Polytechnic University …

Carmelo Zappulla, founder of External Reference, is currently Faculty member at IAAC (Institute of Advance Architecture of Catalonia) and the director of the Master in Experiential Design at …

BARCELONA Carrer de Valencia 287, Ppal, 1ero.08009 Barcelona, Spain.+34 [email protected]@externalreference.com

Project Management: Francesco Sacconi Construction and Furniture: External Reference Designed by External Reference for CREP Protect, this Pop Up Store is […]

The Hive, Louis 1856, Moritz Factory, Barcelona 2014 Yota Devices Pavilon II, Barcelona | 2014

Undercover Brothers Offices Index Tower, Dubai, United arab Emirates 2025 Project: Undercover Brothers Client: Undercover Brothers Location: Dubai, United Arab Emirates. Author: External …

External Reference developed last year the first tree in the world with 3D technology that absorbs CO2. It was a Christmas tree made by an intelligent biomaterial capable of absorbing more …

AIR PURIFIER PLANTS family of 3D printed decorative plants is the result of the research carried out by External Reference architecture firm, led by Carmelo Zappulla, in the field of …

Pure Plants is a family of 3D-printed plants using PURE.TECH is the result of research carried out by our External Reference, in the field of experimental design and new materials.