Having worked on a number of projects in various Architectural firms in Europe and Africa, Tosin incorporated her own Architectural Design Consultancy firm, CmDesign Atelier in 2012.[3][2] Tosin Oshinowo is also the Founder and Chief Executive of Lifestyle furniture line, Ile ila (House of Lines).[4][5] Tosin is a member of Nigerian Institute of Architects (NIA) and also a registered architect with Architects Registration Council of Nigeria (ARCON)[3] In 2019, Oshinowo was featured in the Polaris catalogue produced by Visual Collaborative, she was interviewed alongside other practitioners from around the world.[6]