Is Zakat obligatory on an apartment that was purchased for a daughter with the intention of selling it in the future to cover her marriage expenses, knowing that it is currently rented out to cover living expenses?

Zakat (definition) is obligatory on an apartment purchased with the intention of selling it in the future, because it is considered a trade commodity. The apartment is to be appraised when a full year has passed since the original capital with which it was purchased, and its zakat is to be paid at one-quarter of one-tenth (2.5%) of its value. Similarly, zakat on the rent becomes obligatory when a full year has passed on it, and it can be paid along with the zakat on the value of the apartment.