Quantification is very important for construction and demolition waste management. Estimation of C&D can be reached by establishing waste quantification model for C&D waste that is applicable in urban areas. In this paper, it is presented model for quantification of C&D waste considering Aveiro. The analysis is done for single-family urban sector. In this paper, it is combined empirical data given from Portuguese Statistical Bureau (INE) considering construction activities and C&D waste. Estimations provide data and yearly estimation for C&D waste generation for a period 2015 until 2020 in Aveiro. LCA tool is applied in order to calculate environmental impact of certain C&D waste materials.