The roof on an old house in the town of Hoi An's historic quarter collapsed Wednesday, local news website VietNamNet reported.
Authorities have warned about the degradation of houses in the area for years.
The house in question had been deteriorating for years and had had been left vacant since it's owner moved out three months ago.
No casualties or damage to valuable assets were reported.
The Hoi An government has sent official contractors to fix the damage and set up plans for restoring the house.
Nguyen Su, head of the Hoi An Communist Party Unit, said the lack of money and systematic methods have kept houses in the area from being restored in time.
Su said it was very important that the town and concerned agencies spend money on the houses now as the monsoons are coming.
Old houses in the historic town, a UNESCO World Heritage Site and major international trading port in the 14-17th centuries, are a major tourist attraction for both foreign and local travelers.