Two persons in the house and a one and a half month old infant have been rescued while efforts are underway to rescue a couple trapped under rubble.
Police said the building had caved in and collapsed onto a house next door.
Police initially rescued two women who were trapped under the debris.
The Kandy Police said rescuing the couple inside the house seems to be a complex task.
Area residents have joined in rescue efforts led by Police and Disaster Management teams.