The article presents the issues of tariff regulation of connections (technological connection) of capital construction objects to the city communal infrastructure. Legislative streamlining of the connection of real estate objects under construction to engineering and technical support systems mainly took place according to the sectoral principle, which led to significant differences in the tariffication of connection to different types of engineering systems. This creates problems both for developers and for the development of the engineering infrastructure of the Russian cities. This study aims at analyzing the current situation in the tariff regulation of connections and finding solutions to the identified problems. As part of the work, a questionnaire survey of the administrations of 102 cities was carried out, in which the values ​​of the established tariffs were clarified, different approaches and bottlenecks of the connection practice were determined. As a result, significant differences are revealed in the adopted methodology of tariff regulation of connections for various types of communal infrastructure, a list of problematic issues have been identified which reduce the predictability of developers' costs for connecting to communal infrastructure and have a negative impact on the spatial development of the Russian cities. Further steps are suggested to improve the existing practice of tariff regulation.