Surveyors expect sales of homes in England and Wales to rise in the final weeks of a stamp duty holiday.
Sales expectations for the next three months, recorded in the Royal Institution of Chartered Surveyors' (Rics) January survey, were at their highest level since May 2010.
Fewer surveyors expect prices to fall over the same period, although a greater proportion still expect prices to go down than increase.
A mild winter has also aided activity.'Improved tone'
The 1% stamp duty rate for first-time buyers, on properties worth between £125,000 and £250,000, is being reintroduced on 24 March.
Chancellor George Osborne took the decision in last November's Autumn Statement, pointing out that the policy - introduced in March 2010 by the previous Labour government - had not helped many more people buy a home.
On Monday, the Council of Mortgage Lenders (CML) said that a pick-up in first-time buyer numbers at the end of 2011 could be the result of people trying to get on the property ladder before the concession expired.
And now the Rics survey has suggested that the "improved tone" among surveyors about activity in the market and price expectations could be at least partially due to the same reason.
It also corresponded with the sharp increase in sales expectations.
"With first-time buyers no longer exempt from stamp duty as of the end of March, it seems that some are looking to purchase homes before the deadline and, as a result, surveyors are relatively optimistic for the coming months," said Michael Newey, Rics' housing spokesman.
He pointed out that first-time buyers still faced difficulties securing a mortgage.
Following the end of March, the end of the stamp duty concession could partially unwind this extra activity of the coming weeks, the Rics report suggested.Climate change
The weather was the other significant factor in the pick-up in activity noted, primarily, by surveyors in the North of England.
Before the cold snap in February, the winter had been mild, and that had encouraged more people than a year earlier to go house-hunting, some said.
"It has been a reasonably busy start to the year. The kind weather has meant that viewers can travel some distance," said surveyor Francis Brown, of Richmond, North Yorkshire.
Edward Waterson, a surveyor in York, said: "There has been a surprisingly brisk start to the year, despite the economy.
"Buyers have appeared to get the bit between their teeth and a shortage of stock is forcing them to make decisions and stick to them."