Dear friends, colleagues and clients. After 10 years of very fruitful collaboration, F451arquitectura moves forward and gets reorganized.


Esther Segura, Santi Ibarra, Xavier Osarte and Lluís Ortega continue their collaborative practice under the name of Sio2Arch.

You can reach them and their work here:



Toni Montes launches his company Miba Architects.

You can reach him and his work here: