Ian Xuesen's former residence is located at No. 2 Square Valley Garden, Ma Shi Street. Originally it's square valley garden, it is said that the Ming Dynasty Zhejiang governor should be the back garden of jade.Later, it was owned by the Zhang family of a wealthy merchant in Hangzhou and belonged to Qian Junfu as the dowry of Miss Zhang Lanjuan. The son of Qian Xuesen, a famous Chinese aerospace scientist, is still the owner of the property. The former residence faces south, covering an area of 1.3 mu, the plane is rectangular. The former residence consists of two buildings and a back garden, each of which consists of a patio and a three-storey wooden building.One into the building for the horse-riding style, the front for the east-west wing, with the east-west wing. Second, into the building with east-west wing.