A data aggregation and evaluation tool for property evaluation is described. In an example implementation, the system may receive a first user input indicating a preference for a set of attributes via graphical user interface, generate a set of queries associated with the set of attributes, and provide the set of queries to the user via the graphical user interface. The system may receive a second user input to the set of queries and may determine a weight associated with an attribute based on the second input. The system may receive data describing an attribute value of the attribute for a property, score the property using the weight and the attribute value, and alter the graphical user interface based on the score.