Damyan Stoyanov graduated as an architect from the University of Architecture, Civil Engineering and Geodesy in 1983. He worked at Sofproekt until 1990. He has been manager of the architectural firm Stoa since 1991, the company later specialized in construction and real estate development.
In its portfolio the company has a number of reconstructions and restorations (design-build) of monuments of architecture such as: the Academy of Theology, the residence of the Ambassador of the UK, Boyana Church, Central Market Hall, the National Assembly.