Joint development agreement service tax and vat

Any expert please answer this

Mr.A(Land owner) Entered into JD with MR.B(Builder).

As per agreement Land owner share-45%

                           Builder share-55%

The Developed property is leased to a hospital (not sold)

What will be the Service tax and VAT implications?

How we will arrive at Sale consideration in this situation(where there is no sale of flats)?