There were only four transactions in the secondary residential market at the weekend even though the market for new homes was active.
About 100 new flats in two residential projects were sold.
"Sales in the secondary residential market continue to be in single digits this month," said Sammy Po, the chief executive of Midland Realty's residential market section.
Kowloon Development said 80 units at its Upper East project in Hung Hom were sold by 6pm on Sunday.
More than 860 units, or 85 per cent of the 1,008-unit development, have been sold, helping the company pull in HK$4 billion in revenue.
Home seekers have been drawn to the development, with flats sized 123 to 375 sq ft, as it requires an initial deposit of just 5 per cent of the unit's value.