Agglomeration processes are objective in nature, which determines their development in Ukraine throughout the period of its independence. However, these processes in our country mostly occur spontaneously. Because of that they primarily rely on non-formal institutions, such as verbal agreements, administrative stereotypes or social needs. At the same time, agglomerations forming and their development prove a very important trend in the modern world economy: increasing of social and economic role of big cities in the era of globalization and digitalization. At one time, this problem was partially solved at the first stage of the administrative-territorial reform in Ukraine before the large-scale invasion. However, after the start of the active phase of hostilities, the situation has deteriorated significantly. On the one hand, a large number of internally displaced persons and relocated businesses have appeared. They are concentrated mainly in large cities and surrounding rural communities. On the other hand, due to the loss of a significant part of human capital, tensions in the local governments that are the centers of agglomerations have increased, especially in the process of implementing administrative and management functions of territorial management. This has significantly realized the problem of developing high-quality institutional support for increasing the socio-economic potential of the development of agglomerations. At the same time, it should be noted a need to improve the regulatory and legal regulation of agglomerations in view of determining their place in the post-war economic recovery of Ukraine. First of all, this concerns the regulation of the activity of the institute of urban agglomerations at the legislative level. It is also necessary to create an appropriate institutional basis for the training of qualified management personnel capable of ensuring the development of Ukrainian agglomerations at the stage of post-war economic recovery using modern management technologies. In particular, in this context, it is worth emphasising the wide implementation of project management, IT technologies and network marketing, as well as modern tools of territorial branding for agglomerations and strategizing their comprehensive development.