To provide a house model providing server device, a method therefor, and a program thereof capable of easily providing a house model based on CAD data.

This house model providing server device connected with a design maker terminal unit, a client terminal unit, and a reader terminal unit to provide a client with the house model based on the CAD data in accordance with client's demand is provided with a CAD data providing means for providing the CAD data related to client's house to the reader terminal unit by access from the reader terminal unit, a point management means for returning predetermined point to the client to manage the point by providing the CAD data, and a model preparation device for confirming the point returned to the client by accepting the application from the client terminal unit and preparing the house model automatically or semi-automatically in accordance with the CAD data if the point reaches the predetermined point.