Answer
(Fatwa: 560/526/N=1433)
At the time of your grandmother’s death, if no grandson and granddaughter were alive except of you then in the question mentioned above the house left by your grandmother shall be divided into two shares. Out of which 1 share shall go to your phuphi and 1 share to you. The detail of the division is as follows:
Details:
Daughter: 1×1 =1
Grandson: 1×1 = 1
Total: 2 shares
And if instead of you other granddaughter or grandson of the deceased lady were alive then write their detail and submit the question again.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband