en Evaluation of Urban Green Space on Economic Price in Neighborhoods, Region 1, Tehran تخصصي Special پژوهشي Research Urban green space is one of the important solicitude for urban planners and designers due to their effects on quality of life. This research used HPM model to estimate economic value of urban green space, in a case study of trees in Velenjak residential place, Tehran Metropolitan Area in Iran. View determined the spread tree on the public spaces and neighbourhoods improve residential land use value about 1.5 MRials rsulting a positive neighbourhood externality of studied green spaces and trees. Developed model in this study is capable to popularization on the same region, in order to qualitative value estimation of open spaces. Urban green space is one of the important solicitude for urban planners and designers due to their effects on quality of life. This research used HPM model to estimate economic value of urban green space, in a case study of trees in Velenjak residential place, Tehran Metropolitan Area in Iran. View determined the spread tree on the public spaces and neighbourhoods improve residential land use value about 1.5 MRials rsulting a positive neighbourhood externality of studied green spaces and trees. Developed model in this study is capable to popularization on the same region, in order to qualitative value estimation of open spaces. urban spaces, HPM model, tree, economic value, Tehran. urban spaces, HPM model, tree, economic value, Tehran. 85 94 http://ijurm.imo.org.ir/browse.php?a_code=A-10-585-2&slc_lang=en&sid=1 Reza Keshavarz Nourooz Poor رضا کشاورز نوروز پور rezakeshavaez6@gmail.com 10031947532846001948 10031947532846001948 Yes دانشگاه آزاد اسلامی واحد تهران جنوب