Is zakat due on an amount of five hundred thousand from the sale of a plot of land, which was offered for sale four years after its acquisition, and one hundred thousand was spent on it, knowing that it was one of two plots applied for with the intention of habitation, and the other was allocated for housing?

Zakat (definition) is obligatory on the price of the land if a hawl (lunar year) has passed over it, and it reaches the nisab (definition) (minimum threshold) either by itself or by joining other zakat-eligible assets owned by the proprietor. Its amount is one-quarter of one-tenth (2.5%). As for land that was not originally a trade commodity and then the intention to trade it arose, Zakat is not obligatory on it due to this intention, according to the majority of scholars.