County's right to buy back property

For the term of the restrictions beginning from the purchase of a dwelling unit, or from the date of occupancy of a dwelling unit built on a vacant lot purchased as a vacant lot, whether ownership of the dwelling unit or vacant lot is from an original or subsequent purchase, and whether by lease, assignment of lease, deed, or agreement of sale, if the owner wishes to sell or to transfer title to the real property or the lease, the County shall have the first option to purchase the real property or lease at a price which shall not exceed the sum of:The original cost to the owner;The cost of any capital improvements added by the owner, provided that for a vacant lot owner, the cost of a dwelling unit constructed by an owner builder, including a participant in a County sponsored self-help housing project, shall be the initial building assessment value determined by the County's Real Property Tax Division, Department of Finance, or the total documented cost of construction, whichever is greater; andSimple interest on the original cost to the owner and the cost of capital improvements added to the property by the owner at the rate of 1% a year.