Regarding the prediction of two development patterns for Plieningen in 2020, the density maps of outward development do not show significant changes compared to the ones in 2009,especially for three attributes: the total number of buildings,location areas and floor areas, firstly due to the small number of 50 new residential buildings against the 1125 of total buildings in Plieningen and secondly their scattered distribution along the boundary which also weakens the density growth of attribute values at the points location. However the density map of building volumes in 2020 has an obvious expansion in the outward developing areas which means that the newly increased residential buildings of about 15 thousand m2 floor areas in 2020 will have greater effects on the entire building volume distribution than the other three attributes in Plieningen in the trend of outward development.