An authority may make land in a conservation or redevelopment area available for purchase or use by nongovernmental persons or entities or public agencies in accordance with the conservation or redevelopment plan. Such land may be made available at its fair value, which represents the value at which the authority determines such land should be made available in order that it may be developed, conserved or redeveloped for the purposes specified in such plan.

To assure that land acquired in a conservation or redevelopment area is used in accordance with the conservation or redevelopment plan, an authority, upon the sale or lease of such land, shall obligate purchasers or lessees: (1) to use the land for the purpose designated in the conservation or redevelopment plan; (2) to begin the building of their improvements within a period of time which the authority fixes as reasonable; and (3) to comply with such other conditions as are necessary to carry out the purposes of this chapter. Any such obligations by the purchaser shall be covenants and conditions running with the land where the authority so stipulates.