Abstract: In the selection of property investment for various purposes it is very important for prospective homeowners to know the nature and characteristics of the property. This research has made an application as a tool for decision support systems that can assist in decision making with the analytical ability to assess property compatibility with prospective investor using the Analytic Hierarchy Process (AHP) Model, each of which is based on the attributes of the property. The completion process using AHP modeling is make a pairwise comparison matrix, calculate the priority value for each criterion, make a paired matrix sub-criteria of each criterion and d) calculate the priority value of the subcriteria of each criterion and form of calculation using AHP. With the combination of criterion, sub-criterion intensity and weights values entered with official property data in the city of Makassar, the application will be able to produce a sequence of global compatibility values for each alternative property to prospective investor. The result of this process is a compatibility ranking. This ranking is the basis of recommendations for decision makers to choose suitable property. This web-based software is created with the open source tools and software.