how can we apply for loans for the land and the funds needed to build the house altogether?

Question

will they grant the loan amount's more than what the land property 's worth?

Answer 1

Construction loans, have nothing to do with the land cost, but are like all home loans, based on your income / debt and ability to repay.

Answer 2

I would do it separately. After acquiring the land, you could use it as collateral to borrow the money to build the house. You would need to ask for a construction loan instead of a home loan.