[2] The railway closed in 1981 and in 1984 John Burns used the former operating company, Derwent Valley Holdings, as the vehicle with which to develop his London-based property business.

It joined the FTSE EPRA/NAREIT Developed Europe index on 31 December 1999 when it was launched, trading under the name Derwent Valley Holdings.

[1] From the merger with London Merchant Securities the company acquired 800,000 square feet (74,000 m2) of property to add to its existing Fitzrovia portfolio.

In November 2009 the company announced plans to transform part of Fitzrovia in central London into a new retail destination with cafes and restaurants.

[10] In 2009 the company's plans to demolish Farringdon's famous Turnmills were turned down by London Borough of Islington after a campaign to save the building by local people.