Central London has seen a 50% drop in commerical property transactions, it was revealed today. The City of London and West End markets have seen the volum of investment fall from £10.3bn in first half of last year to £4.9bn in the same period this year, according to property agency Cushman & Wakefield. C&W partner Bill Tyser told The Daily Telegraph: “The outlook remains one of further correction, with rental levels beginning to come under pressure and the availability of finance continuing to be restricted and expensive, so yields will continue to rise and turnover will remain subdued.”