A vote at the EU referendum to leave could have a bigger influence on transactions than prices, Hometrack has claimed.

The technology provider looked back at big economic and political events that have hit the property market such as the dot com bubble and Iraq War, and claimed a Brexit could see housing transactions fall by 5% to 10%, particularly in London where in the past sales volumes have fallen by up to 15% during tough times.

Meanwhile a vote to remain would deliver a boost to confidence and benefit large regional cities such as Manchester, Leeds and Birmingham.

It comes as Hometrack’s latest UK Cities House Price Index found city level house price growth is running at 10.4% compared to 6.6% a year ago when growth slowed in the face of uncertainty over the General Election.

Cambridge experienced the biggest year-on-year growth at 15.8% with average prices now at £411,900, while London saw prices go up 14.4% to £466,000.

Aberdeen was the only city in the index to experience a fall, dropping 6.1% to £183,400.

Richard Donnell, insight director at Hometrack, said: “Our analysis of how the market has responded to external factors over the last 20 years suggests that a vote to leave on June 23 could result in a 5% to 10% fall in housing turnover, with London bearing the brunt.

“After a period of strong house price inflation over the last five years, the London market faces greater headwinds irrespective of the referendum vote.

“Turnover fell 7% last year on the back of affordability constraints and weaker overseas demand. Tax changes for investors will reduce demand and we expect price growth to slow in the near future even if sterling were to weaken and improve the relative value of central London property.”

He said a vote to remain will have the greatest upside for house prices and transactions in regional cities where the recovery has been more short-lived and affordability less stretched than in southern cities, adding: “The boost to confidence from a vote to remain, coupled with low mortgage rates, would most likely benefit cities such as Manchester, Leeds and Birmingham as housing demand and price growth seems set to sustain itself.”