Converting a mixed use property

[Donald M.]

I have a property that is part residential and part rental. For tax purposes it is treated as 2 independent properties based on square footage. I have taken depreciation, etc on the rental portion. I am thinking of converting the residential portion to a rental as well. Do I continue with the old rental portion on its depreciation schedule and create a new schedule with a new basis starting at 0 years for the new rental? I only realized this issue as I was deciding on repurposing it. Thanks!