The seasonally adjusted figure for September saw a slight rise from the previous month’s transaction number of 105,160.
The number of transactions in September 2014 was 100,560, up 5.4% annually.
Brian Murphy, head of lending at Mortgage Advice Bureau, said the figures were “an encouraging sign” that the market is continuing to recover.
He said: “It is certainly promising to see housing activity above the levels seen 12 months ago, but there is increasing pressure on levels of housebuilding as demand continues to outweigh supply.
“The reality is there are still not enough homes to cater for the strong housing demand across the UK, and transactions are likely to suffer if supply doesn’t soon improve.
“New government schemes to improve affordable housing must be in addition to better overall housebuilding levels if they are to make any real impact.”
Peter Rollings, chief executive of Marsh & Parsons, added: “There was a real step-change in the gears of housing market activity over the summer, and since June property sales have been ticking along nicely, with this month-on-month rise the latest cause for optimism.”