The final fundraising push is on by a group wanting to establish a food forest and social enterprise cafe in the heart of Christchurch.
The Ōtākaro Orchard on the banks of the Avon/Ōtākaro River is one of the projects announced by the government to attract people back to the centre of the city since the 2010 and 2011 earthquakes.
It has already raised $1 million and another $200,000 of in-kind support.
But the project co-ordinator, Peter Wells, said another $500,000 is needed by the end of November so the project can be completed within the time set down in its building consent.
"This whole project has been three years in the making, backed by over 500 Cantabrians with about 288 people putting their time into building the project with their own hands, so we're really confident that we're going to be able to bring this home and we're really excited to make it happen."
Mr Wells is confident the project will get there with the help of local businesses and a crowdfunding campaign.