Spatial Valuation of Open Space Externalities in Baltimore County, Maryland

Different open space types are assumed to be valued in different ways by the public. This thesis analyzes four spatially explicit hedonic models of Baltimore County, Maryland to examine the effect of six different open spaces types on house value using 2007 sales data. The first model analyzes open space value using proximity measures of open spaces, while the other three models use percent area measures of open space at different neighborhood distance. Marginal monetary values of the open spaces are estimated. Additional eight hedonic models, four urban and four rural, are used to analyze the differences and similarities between the value placed on open space by urban dwellers and rural dwellers.

Among the open space types under study, storm water retention area is found to have the most prevalent influence on house value and in most instants this influence is found to be negative. Differences and similarities in urban and rural perspective on open space value are also discussed. Proximity to lakes without improvements has positive effect on house prices for both rural and urban area. Golf course area in urban neighborhood has negative influence on house prices, whereas in rural area its influence is seen to be positive.