Abstract
the question of quality of modified landscape is critical for the client and the users and depends on the quality of projects. After theoretical and empirical research, the paper proposes the framework for quality assessment criteria and corresponding indicators for assessing landscape architecture projects. By thorough analysis of the recent international research and design and implementation practices in Lithuania, the paper gives the flexible and universal set of environmental, socio-economic, and aesthetic quality criteria and relevant indicators in the context of sustainable performance.