The article examines the history of the formation and architectural features of residential buildings on Soborna Square 2 and 2a in Lviv - tenement houses of the early ХХ th century, which constitute an important part of the historical environment of the central part of the city. Despite their high architectural and artistic value, the buildings have long suffered from the loss of authentic elements due to outdated repairs, improper operation and insufficient understanding of their cultural significance. The research is based on the analysis of archival documents, cartographic materials, bibliographical sources and field survey.
The work clarifies important facts, in particular, corrects the erroneous attribution of buildings in the list of architectural monuments of local importance. Instead of the indicated residential buildings of Jakub Piepers-Poratynski, the real owner and customer of the structures was Dr. Juliusz Sponnadeł. The buildings were erected in 1901–1902 according to the design of the famous Lviv architect Karel Boublik, The sculptor Bronisław Soltys and the blacksmith Jan Daszek were probably involved. The architectural appearance of the facades is made in the neo-Baroque style with early Art Nouveau elements, which reflects the characteristic style of Karel Boublik. Of significant artistic value are the original wrought-iron gates, balconies, stucco decoration, interior elements and authentic ceramic tiles, probably from the firm of Ivan Lewinsky.
Based on cartographic analysis, the stages of the formation of the territory's development from the 18th century to the construction of modern houses have been traced. The evolution of the functioning of the tenement houses from the location of shops and pharmacies in the interwar period to the modern use of the first floors for commercial premises has been outlined.
The analysis confirms the high authenticity of the objects and their significance in the context of Lviv's architectural heritage. The conclusions emphasize the need for professional repair and restoration work to preserve the historical appearance of the facades, interiors and unique artistic elements that determine the value of these monuments.