P.R. Laws tit. 31, § 1802
No one shall construct near a wall belonging to another, or near a party wall, wells, sewers, aqueducts, kilns, forges, chimneys, stables, deposits of corrosive materials, manufactories operated by steam, or factories which by reason of their character or products are dangerous or noxious, without observing the distances prescribed by the regulations and customs of the locality and without making the necessary protective works, subject, in regard to the manner thereof, to the conditions prescribed by the said regulations.
In default of regulations, the precautions which may be considered as necessary shall be taken, after hearing expert opinion, in order to avoid any damage to the neighboring tenements or buildings.
History —Civil Code, 1930, § 526.