delivered the opinion of the Court.

On July 3, 1956 appellee Rosendo Hernández filed a petition in the District Court of San Juan, requesting that judg:ment be rendered ordering appellant Lino Pereira, Jr., to vacate a lot having an area of 331.52 square meters located ■on Tapia Street, Santurce, in which no dwellings were located, and which said appellant occupied by a lease contract. The leased premises were used by Pereira for his business of *157repairing automobiles. The above-mentioned unlawful de-tainer action was grounded on two causes of action: (1) default of payment of past-due rents corresponding to the months of .May 7 and June 7, 1956, and (2) on the proprietor’s desire of recovering possession of the leased premises in order to withdraw the same from the rental market and devote it exclusively to his personal use. The parties were summoned for a first hearing, appearing only the petitioner, who requested that judgment be rendered on the cause of action for default of payment. A hearing was set in relation to the other cause of action and during the same it was proved “that plaintiff is the owner of the lot referred to in the complaint, that no dwellings or buildings of any kind whatsoever are located therein, and that he wishes in good faith to withdraw said lot from the rental business.” Consequently, the court rendered judgment granting the complaint in all its parts and ordering the ejectment of defendant therein within a 20-day term.

After being notified of the judgment to which we have referred, Pereira requested that it be set aside because the court had no jurisdiction in view of the fact that it was not alleged in the complaint that the plaintiff had complied with the requirement of serving authentic written notice to lessee, of his purpose to withdraw the leased premises six months in advance of the date when the action was brought (17 L.P. P.A. § 193(7) (e)), and also, because the term to ouster had been set erroneously for 20 days.1 Defendant’s motion *158here was obviously grounded on the proposition that the relations between the parties were governed by the Reasonable Rents Act. The district court denied this motion because it understood that the object of the lease contract was a lot wherein no construction devoted to dwellings were located nor buildings for public or commercial or industrial purposes, the Reasonable Rents Act, therefore, being inapplicable.2

Pereira once more went before the court and requested that he be excused from the effects of the judgment rendered on the ground that in entering said judgment the court had been “led to error by plaintiff, either by surprise or inadvertence, as well as by excusable negligence on the part of defendant who so far. . .had been unable to find evidence showing plaintiff’s own acts, which if they had been known by this court, would not have rendered judgment in accordance with plaintiff’s claims.”3 A hearing having been held in relation *159to this motion, the parties appeared and by means of a written stipulation they agreed that the term for ejectment from plaintiff’s “lot” be extended until November 15, 1956, and that defendant would pay the rentals up to said date.4

On July 31, 1957 Pereira brought an action for damages against Hernández substantially alleging that he had vacated the leased “lot” by virtue of the judgment rendered by the District Court, San Juan Part; that this judgment was obtained through fraud and deceit since shortly after defendant recovered the property, he leased it to a taxicab company, despite the fact that he had predicated the unlawful detainer action on the necessity of recovering the property for his personal use; that this act of defendant precluded Pereira from being able to continue to operate his business of repairing motor vehicles, all of which caused him damages during the 5 months in which he was unable to acquire a new clientele and for unearned profits which he calculated in the sum of $3,000 and also, the “disappearance of the commercial premises” which he had established there, for which he claims an additional $3,000.

Defendant Hernández requested that a summary judgment be rendered, and to that effect he attached the original record of the unlawful detainer suit and his own sworn statement. Plaintiff presented a counter declaration. After examining the record and the documents presented by the parties, the Superior Court, San Juan Part, rendered a summary judgment dismissing the complaint and ordering plaintiff to pay the costs and $100 for attorney’s fees. Plaintiff appealed.

In general terms, Puerto Rican law does not acknowledge the existence of a civil action for damages as a *160Consequence of a civil suit.5 The judicial penalty for the improper use of legal proceedings is found in the imposition of costs and attorney’s fees within the same suit.6 That is. why by express statutory provision a cause of action has been allowed for the unjustified or improper filing of certain actions, as for example, § 169 of the Regulations for the Mortgage Law (30 L.P.R.A. § 1090). Ríos v. Banco Popular, 81 P.R.R. 368 (1959).

Undoubtedly, the only statutory provision under which the filing of the present action for damages could be justified is subdivision 7 (f) of § 12-A of the Reasonable Rents Act (17 L.P.R.A. § 193(7) (f), which reads as follows:

“. . . . If at any time during the twelve months following the date on which the tenant vacated the premises [commercial or business] the lessor assigns or leases same to another person, he shall indemnify the tenant for the damages caused him, which shall be fixed at a sum which shall in no case be less than two hundred (200) dollars, or six months’ rent, whichever is greater, plus costs and plaintiff attorney’s fees as fixed by the. court.”

As it may be easily determined the responsibility assessed by virtue of this provision necessarily presupposes that the object of the lease contract has been a property • devoted to rental, as said term is defined in the above-mentioned Act. And for this reason, the action brought by appellant can not prevail since there is among the parties an express adjudication to the effect that the leased property was not subject to rental control, because it was one of the lots which is not expressly covered because it did not have constructions or buildings belonging to a different owner. Plaintiff is estop-*161ped from relitigating this fact which was explicitly raised and adjudicated in the unlawful detainer suit.7 Even when it is considered as a question of law, the same situation would always exist since the cause of action arose out of the same subject matter or transaction. Restatement, Judgment, § 70. As to this matter it is convenient to remember that appellant Pereira raised this question in the motion filed by him to set aside judgment, and precisely, the court determined that his opposition grounded on the application of the Reasonable Rents Act was baseless. This decision prevailed although he sought to revive the matter again in the motion to exonerate him from the effects of the judgment, since the stipulation presented to dispose of this incident merely covered a certain aspect related to the term for the eviction of the leased premises.

Finally, even when the doctrine of collateral estoppel to which we have referred was not applicable, we would always have to hold that the action does not lie because it affirmatively appears from the documents which the trial court had before it, that the object of the lease contract between the parties was not subject to the rental control. Riera v. Super. Ct.; Adm’r Econ. Stab., Int., 79 P.R.R. 598 (1956) decided hardly one month after the decision of the district court was rendered dismissing the motion to set aside the judgment, specifically holds that: (a) the Reasonable *162Rents Act does not refer to lease contracts of vacant lots where no building or premises is located, even when the lots are in an urban zone and are used for commercial or industrial purposes or for business; (6) the premises or buildings used for business contemplated by the above-mentioned Act are structures or buildings which fundamentally are used for commercial or industrial purposes. Assuming the position most favorable to plaintiff, that is, that the “garages” formed part of the leased object, we would always have to conclude, as in the Riera case, that this construction is obviously accessory to the business being operated in the lot.

The only error assigned was not committed. The judgment rendered by the Superior Court, San Juan Part, on November 13, 1957, is affirmed.