Tax and and expense question

[Steve Schwartz]

New member, I own a vacation property that we use every month. Just finished building an apartment above the garage to rent out to a long term tenant. I realize I will need to find a good CPA but can anyone explain if this can get expensed in any way (construction costs). Or does it just get depreciated? I guess my confusion has to do with it being part of the existing vacation home. Any thought would be greatly appreciated. Property is in Oregon if that matters. Thank you!