Mark Bradbury, LTGDC deputy director of development, confirmed that VolkerFitzpatrick, a civil engineering contractor, would carry out £5million of infrastructure work in the northern half of the park.
This includes site clearance, building estate roads, footpaths and cycleways, landscaping and installing utilities such as drainage and heating systems.
Peter Andrews, LTGDC chief executive, told Planning the work would be complete by the second half of the year.
LTGDC intends to sell plots in the park to developers of business and industrial units once the roads are finished.
Andrews said: "We want to plant trees and create a wooded environment with the industrial units in naturally-shaped clearings.
"It will then hopefully look like a business park rather than an industrial estate.
"The park will create new job opportunities, improve the environment of the area and embrace research and development."
LTGDC said it is currently procuring a contract for the southern site where it wants similar road-building work to be done.
The first business on the park, Closed Loop London, opened a plastics recycling facility in June 2008. According to LTGDC, planning permission is in place for two other waste disposal facilities on the park.
LTGDC, which will be absorbed into the Greater London Authority from April 1, hopes the 25-hectare park will create about 1,400 jobs and generate £82million of investment.
LTGDC has been working with the London Borough of Barking & Dagenham to regenerate the whole Dagenham Dock area.