The number of homes sold in the first five months of the year has increased by 11% on an annual basis, showing signs of recovery in the housing market.
The average cost of a house in Scotland stood at £146,073 in May, down almost £200 on the previous month's figure.
Experts said the housing market was faring well under a "stuttering" economy, with an increase in sales hinting towards a more sustained recovery.
However, they issued a note of caution over the future availability of mortgages, saying lending to buyers with small deposits has been suppressed.
Regional variations in house prices across Scotland's 32 local authorities were also recorded in the report.
Excluding the three island groups of Shetland, Orkney and the Western Isles, some of the biggest house price rises since May last year were found in Dumfries and Galloway and Midlothian.
Edinburgh and Dundee also saw prices rise, with the average cost of a home in the capital now £217,803 and £128,375 in Dundee.
East Renfrewshire, Perth and Kinross and East Dunbartonshire experienced some of the largest declines in house prices compared to last year.
However, analysts said the figure for Perth and Kinross was an "anomaly" due to a one-off sale of a multi-million pound home the previous year and prices are expected to return to normal next month.
The findings in the latest LSL/Acad Scotland house price index revealed that despite prices being flat, they are higher than at the beginning of 2012.
Figures show the price of a house in Scotland was down 0.1% in May from April's figure of £146,268, and down 0.6% from the same time last year.
The study revealed the number of transactions carried out in January to May this year was up 11% on the same five months last year.
The increase in house sales from April to May was 7%, with the main rise seen in semi-detached and terraced homes.
Gordon Fowlis, of estate agency Your Move, said: "Homeowners and prospective buyers have every reason to be cautiously optimistic now that we're now beginning to see some green shoots of recovery."