The biggest scheme is the £100m White Collar Factory office scheme in Old Street which is set to start on site early in 2014.
Derwent currently has £72m of schemes under construction and medium term plans to start on another 620,000 sq ft of new space in 2015/16
Derwent said: “The depth of occupier requirements gives us the confidence to start construction of a further 345,500 sq ft (32,050m2) over the next 12 months.”
The schemes set to start are: