"Mortgage sales growth in the Home Counties and South Coast, and the significant increase in overall mortgage sales for the year are promising signs for an upturn in the market"
Northern Ireland and Scotland saw the biggest slump in mortgage sales in October, at -8.7% and -5.2% respectively, according to Equifax Touchstone analysis.
The Home Counties and South Coast were the only regions to report mortgage sales growth, at 2.5% and 1.0%.
Buy-to-let mortgage sales for the month fell by 5.3% (-£153.7m) on September to £2.8bn, while residential figures for October remained the same as the previous month, at £12.2bn.
The average value of a residential mortgage in October was £191,926 (2015: £186,505) and £161,021 for buy-to-let (2015: £158,000).
When comparing January to October 2016 to January to October 2015, there has been an overall increase in total mortgage sales of £6.2bn (+4.4%).
Iain Hill, Relationship Manager, at Equifax Touchstone, said: “The drop in buy-to-let figures this month is disappointing following strong market growth in August and September. It is likely that factors including political uncertainty stemming from Brexit and caution around the Bank of England interest rate plans are contributing to a highly unpredictable market environment.
“However, mortgage sales growth in the Home Counties and South Coast, and the significant increase in overall mortgage sales for the year are promising signs for an upturn in the market for the remainder of 2016. With six weeks left to year-end, it will be interesting to see where sales figures go from here."