[2.5] How old is the house? ____

2.5 How old is the house?
The age of the house where the family is living in should be determined/identified and written in years. If the house is constructed is less than a year ago, 00 should be written in the specified place. If the house was constructed earlier, and some floors were added later, then the first construction date should be identified in case of such a house and accordingly the total number years should be written. The family living in rental may not know the age of the house. In such case, the age should be written as per the response from the owner of the house.