The AKSL Arhitekti was established in 2005 by Špela Leskovic and Aleš Košak, who work together as AKSL team since 2000. The studio is involved in architecture, interior, and stage design, as well as experimental work. Along with their co-workers more than 50 projects have been produced and shown at various exhibitions (Oris ideja in Ljubljana, Zagreb, Beograd and Vienna in 2005; Arhitektura inventura in Ljubljana in 2005, 2006 and 2007).
The studio's major projects include the Mali hair stylist shop in Ljubljana (2001); the Cubo Restaurant in Ljubljana (2003), the Sailing Point nautical shop in Portorož (2004); the Rožmarin restaurant, wine bar and cafeteria in Maribor (2006); the Design Boutique Hotel Sončna hiša in Banovci (2007), Restaurant Valvas'or in Ljubljana (2008), and the Bookstore Modrijan in Ljubljana (2009). Interior design of residential buildings includes many renovations of single family houses, apartments, and lofts.
In 2010 the AKSL Arhitekti studio has been shortlisted for the Contractworld Award with the project Restaurant Valvas'or at the Europe's biggest competition for interior design.
The Rožmarin Restaurant, Wine Bar and Cafeteria in Maribor was nominated for the Plečnik Medal 2008. Selected restaurant interiors were nominated for the Interior of the year award at the Month of Design – Cubo in 2004, Rožmarin in 2007, and Valvas'or in 2008.