From the Transition Network ingredients
Localising the production of food, fibre, fuel and so on will mean obtaining access to land. Our towns and cities could be a network of intensive market gardens, productive fruit and nut-bearing trees, fish- and vegetable-producing hydroponics systems set up on areas of hard standing, productive ponds and new allotments...
Access to land can be secured in a range of imaginative ways. Work with landowners. Seek land that is currently unused and can be used for free. Raise funds to buy land into community ownership. Invite landowners to see opening up access as being both in their and the community’s interest.