1. Urban policy versus urban law -- 2. Institutional frameworks -- 3. Rights and incidents of land use : from a private interest focus -- 4. Rights and incidents of land use : in the public domain -- 5. Land use incidents outside a planning framework : petrol lead emissions case study -- 6. Land use balance through planning -- 7. Planning incidents -- 8. Existing non-conforming uses -- 9. Heeding the call of urban character