Greenbrier Estates is a HUD Apartment. HUD residents usually pay 30% of their gross income for rent. The rent amount, less approved HUD deductions such as medical and child care expenses, and other allowances, includes a utility allowance. HUD Residents also may choose to pay what is known as flat rent. Office Hours: M-F 8 am - 5 pm Greenbrier Estates offers low income one, two and three bedroom units. This is a Low Income Housing Tax Credit community and will have rent and income restrictions based on the Area Median Income.