The servitude of party walls and fences is presumed, unless there is a title or exterior sign or proof to the contrary:\n(1) In dividing walls of adjoining buildings, up to the point of common elevation.\n(2) In dividing walls of gardens or yards, situated in a town or in rural districts.\n(3) In fences, enclosures, and live hedges dividing rural tenements.\nHistory —Civil Code, 1930, § 508.
Puerto Rico Legal Code