For the purposes of Sections 37-57-111 through 37-57-119, the following words shall have the meanings ascribed to them in this section:
“Family unit” means a new family dwelling, mobile home, apartment, condominium, duplex, townhouse or structure, used for family residency.
“Compacted area” means any countywide school system with inadequate building facilities to meet the educational needs of school children, causing crowded conditions, which will continue in the public school facilities.