LDA Design's proposals were chosen for south London's Burgess Park following a major consultation into the future of the park.
The include improvements to the lake, landforms and better entrances designed to give the park a clearer identity.
Burgess Park was awarded £2m by the Mayor of London after winning his Premier Park Regeneration Award in March.
The Mayor's grant was matched with a further £4m of funding, which was secured through partnership between Southwark Council and the Aylesbury New Deal for Communities.
The £6m project is in addition to over £1.2m currently being invested in the Chumleigh Gardens open space, play area and cafe in the heart of the park that is due to open in early 2010.
For more on the winning design, see Horticulture Week on 20 November.
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