Work at Lloyd & Aveling Park in Waltham Forest will include a renewed terrace, a play area, ornamental plants and trees. It used to be private grounds to Morris's childhood home and became public space in the early 1900s.
A mix of restorative works and contemporary spaces will trace the gardens' historical development. Helen Sayers, a landscape architect at Plincke Landscape, said: "We are renovating the park, restoring historic landscape features and adding play facilities. An interpretive garden will be linked to the house and a Morris museum."
Work is due to start in January and last for 15 months. Other elements include a new cafe, restoring a 1900s terrace and moat and improving the water quality. A section of bridge in the park includes a balustrade designed by Morris.
Sayers, who is working on the design with colleague Matthew Wigan, said money was coming from the Heritage and Big Lottery Funds and a local college. Plincke Landscape wants a contractor to handle all aspects of the landscape building. Tenders must be in by 14 October. Call 020 7739 3330.