Protection, improvement and rational utilization of the environment becomes more and more primary task in modern society's struggle for more ecological healthy and humane living and working conditions. In order to living conditions satisfy man's social, economic, health and other needs protection, improvement and utilization of the environment must be in accordance with principles of sustainable development. Fact that planned solutions have great influence on quality of some environmental elements imposes importance of spatial planning for providing healthy environment as one of basic human needs. As in many planning documents environmental aspect was not considering in the way that it was needed to be, there arose a need for Strategic Environmental Impact Assessment in aim to verify are the planning documents in coherence with environmental protection and sustainable development.