The purpose of the present invention is to provide an information processing device, information processing method, and program, with which it is possible to appropriately provide three-dimensional property information. Provided is an information processing device, comprising a floor plan identification unit which generates floor plan information on the basis of a floor plan image, and a model generating unit which generates a three-dimensional model using the floor plan information. The floor plan identification unit further comprises a line segment detection unit which detects a line segment upon the floor plan which corresponds to a wall, a segmentation processing unit which identifies a room region which corresponds to a room upon the floor plan, a character recognition unit which recognizes a character string which is included in the floor plan image, a positioned object detection unit which detects a positioned object symbol which is included in the floor plan image, and an integration unit which identifies the type of the room of the room region and supplements a room structure. The model generating unit further comprises an estimation unit which estimates the scale of the floor plan, and a generating unit which generates a three-dimensional model of a real estate property on the basis of the floor plan which is identified by the floor plan information, the scale, and an estimated ceiling height.