Free market economy in post-communist countries has triggered enormous increase in real estate development (both private and commercial) which has resulted in high grade agricultural land being built up on extensively and urban green spaces being lost. This process has had a negative impact on the quality of the environment in big cities and industrial agglomerations. Urban green spaces expansion could improve the quality of city environments but will bring about problematic land acquisitions and further seizure of agricultural land. The vegetative roofs are able to address this drawback, and furthermore improve the technical parameters of the building therefore substituting the traditional urban green spaces. The establishment of a new subsidy program to guarantee the financing of vegetative roofs implementation on the block of flats in order to stimulate the expansion of vegetative roofs applications remains a challenge though.