In real estate investment, understanding of demand is a key to success in property business. Also, Modeling is a better and safe way to study how things going on around us. This book represents a method of modeling housing demand which started from root of causes (bottom-up approach). Demographic, social and economic factors are linked respectively to be a prototype of housing demand model. System Dynamics is a selected methodology for experiment housing demand scenarios cased from Bangkok, Thailand. This book was written thematically, so any reader can jump or start your reading from anywhere of the book. Beside, this book still keeps the pattern of research method. The written style of this book also benefits readers who need to enhance their knowledge for academic dissertation.