Answer
(Fatwa: 197/H=55/th=1432)
In the question mentioned above, if, at the time of buying the land, your intention was not completely for sale, rather you intended to sell it as well as to build house over it for yourself, , then zakah is not wajib on such land or its price.
ولو نوى التجارة بعد العقد او اشترى شيئا للقنيه ناويا انه ان وجد ربحا باعه لا زكوة عليه كما لو نوى التجارة فى ما خرج من ارضه (قوله و لو نوى الخ ) محترز قوله و شرط مقارنتها لعقد التجارة ح اه درمختار مع الفتاوى رد المحتار ج:2/ص:14) قبيل باب السائمة من كتاب الزكة ، مطبوعه نعمانيه)
(2) When zakah was not wajib, you had full right about the amount of zakah, whether to keep it with you for your needs or spend it in any religious matter.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband