Abstract: Urban mapping with a great level of details becomes possible using the decimeter-level resolution synthetic aperture radar (SAR) data. With available interferometric synthetic aperture radar (InSAR) techniques, it is possible to retrieve the 3D information of individual buildings. In China, the high-rise buildings are numerous in urban areas. It is of the great importance to obtain the 3D information of these high-rise buildings in the city planning. In this study, we show the possibility of the high-rise building 3D reconstruction using only one wrapped InSAR phase imagery with high-resolution. The effectiveness of the approach including the building detection, facade extraction, and 3D information estimation has been demonstrated with the acquired airborne N-SAR data.