Is there Zakah due on the grant given to one by the state

Q: My father took a piece of residential land as a grant from the state in one of the cities of the Kingdom of Saudi Arabia in 1407 A.H. He left this land untouched and did not pay the Zakah (obligatory charity) on it until he died in 1409 A.H. The land remained without being divided among the heirs. In 1414 A.H., all the heirs decided on selling it and the sale actually took place for 135,000 riyals. Since some heirs are still minors, the permit of the legal court was required to conclude the sale. We took a sum of 10,000 riyals from the purchaser to be kept in the notary office until the permit was given. The request for this permit took a full year (Part No. 8; Page No. 111

A: There is no Zakah on you concerning the land mentioned during the past period, because your father did not intend to sell it before his death. You also did not intend to sell it except in 1414 A.H., and because you did not hold the price but after a year from the date of sale.As for the Zakah due after receiving the price, it is due on each of you according to his share; if the share reaches the Nisab (the minimum amount on which Zakah is due) after the passing of a full Hawl (one lunar year calculated from the time a property reaches the minimum amount upon which Zakah is due) from the possession of this money.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.