Buyer's Failure to Renovate Triggers Valid Sale Rescission

A defendant, having sold a building under the condition that the buyer would complete specific renovations within a set timeframe, appealed a lower court's decision that rescinded the sale due to the buyer's failure to execute the required work, arguing the clause was potestative (dependent solely on the seller's will) and thus void. The court dismissed the appeal, reasoning that the obligation to perform the work was not purely potestative because the timeframe for execution was fixed, making the condition's realization dependent on the buyer's action within that period, and therefore the sale's rescission for non-performance was validly ordered.