Remodeling is not subject to strict laws or regulations for permission procedure and structure safety inspection compared with new construction. Most of building owners do not recognize the importance of structural safety enough and place an order to small unlicensed construction company. As a result, important structural materials are damaged without enough investigation into permitted durability and fixed weight and load weight increase. This study suggests a system that can evaluate the state of the building and enables fast judgment on needs of repairing or strengthening as well as needs structural examination.