Church occupied an important place in life of the manor owners. It became a place of christening, wedding and repose. Having lost their historical significance, manors and churches have become a ""monument of history and culture"" and are often in disrepair. The article examines the main characteristics of the churches of the ""estates of the highest nobility"" of the St. Petersburg province, the essence of their identity. The recommendations for the preservation of churches in the estates ""Maryino"", ""Ropsha"", ""Pyataya Gora"", based on the analysis of spatial, urban planning and value characteristics, are described.The purpose of the work is to offer reasonable recommendations for the preservation of the most valuable manor churches of the St. Petersburg province. The tasks of the research were: 1. Consideration of the main characteristics of manor churches. 2. Identification of the three most valuable churches for specific estates and for the Leningrad region as a whole. 3. Giving recommendations for the preservation of chosen churches based on the analysis of individual characteristics. The researched material allows us to conclude that the importance of churches in estates is great. Today it is important to preserve the small proportion of manor churches, which remained as evidence of the lost culture. At the same time, do it comprehensively, in conjunction with the park structure and other manor buildings. The preservation of the estate heritage is justified from the point of view of preserving national identity and creating developed cultural spaces. The proposed recommendations for the preservation of the ruined churches in the estates ""Maryino"", ""Ropsha"" and ""Pyataya Gora"" will form the basis of a comprehensive project proposal during the master's thesis and will attract attention to the estate heritage from the society, security agencies and investors.

Keywords: manor churches, ruined churches, estates of the highest nobility, St. Petersburg province, Marino, Ropsha, Fifth Mountain, preservation

Co-branding contributes to the creation of more successful products. Purposeful formation of the image of an architectural object, that is, its brand, consists of three parts. Its creation involves the brand of the organization or organizations located in the building, the brand of the author or authors of the project, and the brand of the place. These three components can manifest themselves in different ways in an architectural object. Studying the issues of joint branding of architectural objects and understanding this process is important not only for architects and developers, but also for other professionals. The realization of the possibilities hidden in this area contributes to the creation of a holistic image of an architectural object.

Keywords: building image, place brand, building brand, architecture, co-branding, logo, trademark

The algorithm of the project development for the preservation of the cultural heritage object is considered. Recommendations are given for carrying out work on the preservation of the ruined temple for the possibility of its further restoration. A real example of a survey of an object of regional significance "Church of Archangel Michael" (Belgorod region, Valuysky district, village of Podgornoye) is given.

Keywords: conservation, object of cultural significance, survey, building structures, ruined temple

The procedure for performing pre-design work on cultural heritage objects of regional heritage is given (for example, the object "Former real school" in the city of Serdobsk, Penza region). An example of a survey of building structures, the compilation of a historical reference on the object, the collection of initial permits is given. The article is written on the basis of the completed research contract 22-146.

Keywords: the object of cultural heritage, pre-design work, technical expertise, building structures, historical information