Another requirement of the original sponsors was that they would not provide formal sporting grounds and play equipment, so no pitches or playground apparatus were to be built with their funds.
The Countryside Agency (CA) administered the creation of the greens, with regional officers studying grant applications and plans, then surveying land and discussing details with local would-be trustees.
The CA's successor, Natural England, has evaluated both schemes and identified some weaknesses[3] in the plans for both Pocket Parks and Millennium Greens that have made them difficult to create and maintain in perpetuity.
The greens were intended to last in perpetuity and, as such, each was set up with a trust deed including requirements to keep the land and have it available for access by the general public.
A number have been changed by Natural England and the Charity Commission, with the local authority usually becoming the green's sole trustee.
Whilst the greens were intended to last in perpetuity, with most of them given a 999-year lease, they are vulnerable to compulsory purchase if the local authority wants to change the use of the land.