This article examines the preservation of Kirovsk's historic character in the context of its contemporary development. The factors that influenced the development of cities on the Kola Peninsula in the first half of the 20th century are considered. It provides a brief chronicle of the emergence and development of Kirovsk as one of the key industrial centers of the Murmansk Region. The historical path of formation of urban development in the 1930s - 1950s is analyzed, and its specific features are identified. The current state and protection of Kirovsk's architectural heritage are highlighted, identifying threats to the loss of historic buildings caused by natural physical deterioration and processes leading to the loss of their original appearance. Proposals are presented for the preservation of significant elements of the planning, development and individual buildings that have historical and artistic value.

Keywords: architectural and urban development, architectural and planning structure, constructivism, stalinist neoclassicism, object of cultural heritage, adaptation, conservation, historical appearance of the building

The article examines the process of development of the architectural and planning structure of Monchegorsk in the period of the 1930s – 1950s and defines its specific features. The issue of the current state of the architectural heritage of the city and the problems of its preservation is investigated. The proposals aimed at preserving valuable elements of the planning and architectural landscape, as well as historical architectural objects in the context of modern urban development are given.

Keywords: architectural and planning structure, visual connections, accent, dominant, cultural heritage object