P.R. Laws tit. 21, § 5174
Those lots affected by the official plans or maps and programs adopted by the Planning Board as indicated above, that are vacant, or unused, and are not producing income, shall be exempt from all property taxes as long as they remain in such a condition and for the duration of the legal building restriction that causes the exemption.
Likewise, those built-up lots which are vacant or unused and are not producing income shall be exempt from all property taxes as long as they remain in such a condition and for the duration of the legal building restriction that causes the exemption.
In all cases of lots and real estate properties with a greater surface area that are only partially affected by government projects, and those where the remainder of the land may continue to be used or is destined for the uses allowed by the Puerto Rico Planning Board, the tax exemption provided by §§ 5172–5179 of this title shall be limited exclusively to the appraisal of the portion of the property thus affected as long as it remains in the condition that caused the exemption.
History —Aug. 30, 1991, No. 83, § 5.24.