Aljoša Dekleva graduated in Ljubljana and received Master degree in Architecture with Distinction from Architectural Association School of Architecture in London.
With Tina Gregorič, he directs Dekleva Gregorič architects, an architectural practice based in Ljubljana, who pursue the concept of research by design and design by research. Their aim is to challenge the obvious.
He runs an experimental teaching and research programme AA Visiting School Nanotourism as part of Visiting School at the Architectural Association, London. As a guest professor he was teaching at Université de Montréal and ENSA PVS in Paris.