Here are detailed examples of four local authorities have produced supplementary planning guidance for sport and open space.  Each description includes a link through to the full text of the spg.

Fareham
Open Space calculator for new housing development

Swindon
Providing open space through new development in a growth area

Mid Devon
Providing and improving openspace in a rual area. one dwelling threshold.

Stockport
Recreational Open Space Provision and Commuted Payments