Annual Rental Value (ARV)
In relation to a valuation unit, means its annual rental value as assessed under this Act, based on the rent at which the valuation unit might, on or about the valuation date on the open market, reasonably be expected to let from year to year if the tenant undertook to bear the cost of internal repairs, and the landlord to bear all other reasonable expenses necessary to maintain the valuation unit in a state to command that rent, but excluding any element attributable to any tax payable under this Act.