If the buildings and plots of land mentioned are made for sale, Zakah will be due on them after the passage of a Hawl. Therefore, they should be estimated and 2.5% of the calculated value should be paid as Zakah. However, if the land and the buildings are not intended for sale, Zakah will be due only on the rent after the passage of a Hawl from the time of contract. As for parts allocated for charity, they are exempted from Zakah, so no Zakah is required on them or on their rent. You should care for and reform the property of the living people under your charge and the bequest of the dead.May Allah grant us success. May Allah's Peace and Blessings be upon Prophet Muhammad and upon his family and Companions!