Development of the civilization should be supported by adequate line infrastructure. This infrastructure connects urban areas, however it also affects their future growth. The collision of both of them needs substantial attention and study. Power network presents one of the line infrastructures, which is necessary for operation and development of settlements, although it limits the construction of buildings in its vicinity. In Slovenia, it was allowed to construct overhead lines over residential areas, and building houses under conductors was acceptable. But recently, changes in the legislation took place and new regulations limit the construction of residences within overhead line corridors, and, in addition, new lines should avoid crossing existing housing areas. The public would like to see the problem of overhead lines in the vicinity of residences to be solved by either cabling or moving the lines to a different location. Recently, the public called out for the corridors to be expanded, but this would cause a number of issues for many houses and thus generate additional costs. The results of our study speak in favour of the assumption that corridors are less populated than outside space. Due to limitations in possible increases of transmission fees, it is impossible to cater to all wishes. Therefore, it is necessary to establish criteria that would ensure that the outcomes for people in the vicinity of overhead power lines are indeed fair and consistent. The following paper presents a contemporary method of defining and establishing housing density in corridors as a basis for cabling criteria. We present a proposal focused on how it might be possible to determine criteria for cabling that would apply to the entire state. The proposal of criteria for cabling defines sections of overhead transmission lines which might be replaced with underground cables according to the population density of settlements. However, before applying the newly established criteria, technical restrictions should be taken into account.