Investors & landlords

I am in similar situation. I convert my garage into an ADU. I started construction from Jan -June 2022. I started renting from Aug 2022. When i tried to enter construction cost, it is asking date purchased or acquired. will it be Jan 2022 when i started construction or will it be when I started renting or will it be since when I bought the house?

Once i entered construction cost, it is taking me to special depreciation allowance section rather than 27.5yrs regular depreciation, what should I do?

 

Thank you for your help