Deniz Avcı Hosanlı graduated from Başkent University, Department of Interior Architecture and Environmental Design (with full scholarship) in 2009 with secondary place in graduate listing. She completed her master's degree in Conservation of Cultural Heritage at METU, Department of Architecture (2012) and completed her PhD in History of Architecture at the same university and department (2018) with her dissertation titled “Housing the Modern Nation: The Transformation of Residential Architecture in Ankara during the 1920s.”

Having worked in various restoration, architectural and interior design projects, from 2018 to 2022, Avcı Hosanlı worked as instructor/lecturer at I.D. Bilkent University and Kadir Has University, respectively, in Interior Architecture and Environmental Design departments. As of 2022, Avcı Hosanlı works as Assistant Professor at Haliç University, Department of Interior Architecture. She teaches undergraduate and graduate courses on history of architecture, history of interior architecture, interior architecture and environmental design studios, environmental analysis techniques, and cinema/architecture/space.

Her research interests include traditional 18th and 19th century residential architecture and their conservation; conservation of cultural heritage with adaptive re-use approach; early Republican era housing production under the influence of the 20th century modernism; consequent effects on urban transformation and immigration/emigration; housing production/transformation shaped by users/actors; spatial transformations of historic buildings; understanding architecture via cinematic representation; and modern interiors. As of 2020, Avcı Hosanlı has been working on the research project titled “Architects Who Left their Marks in Ankara” and operates as a committee member in the non-profit organization “docomomo_tr Interior Design Committee.”