For depreciation, you need the basis of the house (assuming that is what you are asking).
According to the IRS,
The basis of property used in a rental activity is generally its
adjusted basis when you place it in service in that activity.
This is its cost or other basis when you
acquired it, adjusted for certain items occurring before you place it in
service
in the rental activity.
Your basis would be the price you paid for the house plus the cost of improvements that extended its life. Improvements include painting the exterior, replacing the roof and windows, replacing appliances, etc. In addition, any repairs you made prior to making the house available to rent, such as replacing carpets or painting the interior, would add to the basis of the house. Because you rented out the house so soon after its purchase, you could count all of your repairs as part of the basis.
In addition, there are certain costs from the purchase of the house that get included in the basis. For a complete discussion of what counts, see Depreciation
of Rental Property in IRS Publication 527.
