How to I treat Rental Condo Captial Reserve association fees - add to Depreciated Cost Basis or as an Expense

I own and rent a condo that is part of an association.  The association manages all capital improvements as needed and charges me a monthly Capital Reserve fee that usually totals less than $1,000/year to fund these planned improvement projects.  Do I add the annual amount to the Depreciation schedule as an increase in cost basis and depreciation over 27.5 years, or because it is below a $ threshold, just expense the total in the current tax year?