selling property with ADU- Do I need to pay depreciation on rental?

We built an ADU in 2020. We rented it in 2021-2022. We then sold our property in 2023. We never claimed the money that it cost to build it, because that was in 2020 before we rented it. We have claimed improvments and maintenance for the 2 years we rented it through Turbo Tax. Was the ADU amortized in TUrbo Tax? Do I have to do sometnig special in filing taxes because I rented it? Or do I just file the capital gains for the sale of my house?

I only rented it for 2 years and owned the property for 5 years.

 

THanks for your help!

Denyse