Hi - that answer is not correct. The "condo fee" is $524. The unit also has a supplemental assessment of $165 per month for approximately 9 years for work done to the buildings. This could have been paid in a lump sum at the time of the assessment and can be paid off at any time. The monthly total including the special assessment is $689. There are no separate charges for building mortgage interest or taxes. This is not a co-op, it is a condominium.