Property investor and developer Development Securities said that capital values in the property investment market have started to recover slightly though wider economic concerns remain.'There is a significant weight of equity chasing minimal available stock so perhaps it should not surprise us that capital values are rising,' said chairman David Jenkins.However, he added: 'On the other hand, concerns over the wider economy and downward pressures on consumer demand must temper expectations of a reduction in vacancy rates and a rapid return to sustainable rental growth.'Development Securities also announced the acquisition of a leasehold in Hammersmith Grove, an office development in London and said that its CityPark office and hotel development in Manchester had achieved 'practical completion.'