Cultural-historical and, inter alia, archaeological objects provide opportunities to meet different interests, such as aesthetic, symbolic, educational, research and others. No less important are the economic opportunities offered by the development of the potential of cultural heritage sites. Socio-economic interests and thus the opportunities provided by heritage sites, depending on the quality and significance thereof, affect many stakeholders - their owners (both private and public), local community, researchers, tourists, businesses, mass media, heritage institutions, etc., as well as society as a whole. However, it is widely acknowledged that investment in cultural heritage sites (including conservation, restoration, maintenance, marketing, etc.) tends to outweigh their direct economic benefits (direct revenue). The aspect of state aid is important, as ownership of an object with the status of a cultural monument not only increases socio-economic opportunities, but also imposes certain obligations and business activity restrictions. Thus, questions arise: 1) does the immovable cultural object represent opportunities or burden to its owner? 2) What does the effective use of the cultural object owner's opportunities depend on? The presentation, analyzing the situation in Latvia, uses the integration of socio-economic and legal approaches to the researched issue. Archaeological monuments are taken as an example - one of the most numerous and endangered monuments in Latvia. The presentation provides both theoretical and practical insight into the problems of archaeological heritage objects development potential and possible solutions thereto. It is based on the authors' (A.Kairiss, PhD oec. cand and I.Olevska, PhD iur. cand.) research made in 2020 -2021.