Civil Code, Art. 1621

The owners of adjoining lands shall also have the right of redemption when a piece of rural land, the area of which does not exceed one hectare, is alienated, unless the grantee does not own any rural land. This right is not applicable to adjacent lands which are separated by brooks, drains, ravines, roads and other apparent servitudes for the benefit of other estates. If two or more adjoining owners desire to exercise the right of redemption at the same time, the owner of the adjoining land of smaller area shall be preferred; and should both lands have the same area, the one who first requested the redemption. (1523a) ARTICLE 1622. Whenever a piece of urban land which is so small and so situated that a major portion thereof cannot be used for any practical purpose within a reasonable time, having been bought merely for speculation, is about to be re-sold, the owner of any adjoining land has a right of pre-emption at a reasonable price. If the re-sale has been perfected, the owner of the adjoining land shall have a right of redemption, also at a reasonable price. When two or more owners of adjoining lands wish to exercise the right of pre-emption or redemption, the owner whose intended use of the land in question appears best justified shall be preferred. (n)