The duo will deliver 350 new homes at the 1.8-acre site opposite Blackhorse Road London overground station with half the homes due to be affordable.
Currently used as a car park, the site is adjacent to several industrial spaces which are being redeveloped to provide around 1,700 new homes, plus new retail, commercial and leisure facilities.
Work is due to begin in 2019 for completion in 2022.
Matt Calladine, Regional Land & Development Director, Barratt London, said: “The TfL car park at Blackhorse Road Station is an important development site in the context of the wider regeneration of this area.
“We are looking forward to working closely with TfL, the London Borough of Waltham Forest and local stakeholders to ensure the delivery of high quality homes and new commercial facilities that will benefit the entire community.”
Andy Rowland, Regional Managing Director – East Region at L&Q, said: “We are delighted to be working with TfL to deliver hundreds of new homes on the Blackhorse Road site, with half of the homes being genuinely affordable to Londoners on average and lower incomes.
“The project forms part of an exciting wider redevelopment of the area and will sit proudly in a thriving new neighbourhood a short journey from central London.”