Supply has edged up over the past six months, rising to 5.3m sq ft, due primarily an increase in second hand space being released onto the market. A major factor behind the increase in supply has been the release of several larger units onto the market. Grade A supply remained relatively stable at 1.9m sq ft, with the majority of space (1.3m sq ft) in five Big Box units, with the largest being the 505,955 sq ft Ultrabox in Purfleet. The availability rate is 7.6%, one of the highest across the Eastern M25.