The paper suggests a novel mobile of real estate service utilizing AR(augmented reality) and location based service for smart-phone environment. The real estate service provides useful information of real estate with users and increases user\'s satisfaction of real estate mediation which is combined with AR and location based features. We propose a design scheme of the real estate service for a smart-phone and implement an application program for iphone that consists of five sub-components, AR-based screen, list-based screen, environment setup screen, and calculator screen.