(1) "Affordable housing" means residential housing for rental or private individual ownership which, as long as the same is occupied by low-income households, requires payment of monthly housing costs, including utilities other than telephone, of no more than thirty percent of the family's income.

(2) "Low-income" means a family or household earning eighty percent or lower of county median income.

(3) "Very low income" means a family or household earning fifty percent or lower of county median income.

(4) "Department" means the department of community development.

(5) "Director" means the director of the department of community development.