Short answer. Sometimes. Under Article 1539, on a sale of realty at a rate per unit of measure, an inferior-quality portion is treated like a shortage: you may choose a proportional price reduction, and you may rescind only when the inferior value of the thing sold exceeds one-tenth of the price agreed upon.
What the law says
The rescission, in this case, shall only take place at the will of the vendee, when the inferior value of the thing sold exceeds one-tenth of the price agreed upon.
Civil Code, Article 1539 — Sale of Realty by Unit of Measure. Read the full provision →
Poorer quality is treated like a shortfall in area
Article 1539 governs a sale of real estate at the rate of a certain price for a unit of measure or number. Its central duty is that the seller must deliver everything stated in the contract. The article then extends its shortage rules to quality: The same shall be done, even when the area is the same, if any part of the immovable is not of the quality specified in the contract. So an inferior portion is handled the way a missing portion is. Rather than treating any defect as a ground to cancel, the law channels you first toward an adjustment that matches what you actually received to what you paid for.
Your ordinary remedy: a proportional price reduction
When part of the land falls short of the promised quality, the primary remedy is a proportional reduction of the price. Because you bought at a rate per unit, the price can be scaled down to reflect the lower value of the deficient portion. This keeps the sale alive while compensating you for the gap between the quality bargained for and the quality delivered. It is the balanced default: you are not stuck paying full price for inferior land, but neither does a modest deficiency automatically hand you the more drastic power to undo the entire purchase.
When you may actually rescind
Rescission is the stronger remedy, and the article confines it. It provides that The rescission, in this case, shall only take place at the will of the vendee, when the inferior value of the thing sold exceeds one-tenth of the price agreed upon. In other words, you may cancel the sale only if the drop in value caused by the inferior quality is more than one-tenth of the agreed price. Below that threshold, the law expects you to take the price reduction instead. The one-tenth line is the dividing point between a defect the Code treats as adjustable and one serious enough to justify walking away.
A further safeguard, and the limits
The article adds a protection for a buyer whose real purpose is defeated: if the vendee would not have bought the immovable had he known of its smaller area of inferior quality, he may rescind the sale. That recognizes cases where even a small deficiency destroys the point of the purchase. Still, this framework applies to a sale by unit of measure, not every land sale, and it measures your rights against the one-tenth benchmark and your genuine reliance. Whether your situation crosses those lines is a factual question turning on the contract's stated quality and the actual value of the deficient part.
Cases citing this provision
These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.
- Cebu Windland Development Corporation vs. Ong Siao Hua, G.R. No. 173215, May 21, 2009 — read the decision on LawPhil →
- Rudolf Lietz, Inc., vs. The Court of Appeals, et al, G.R. No. 122463, December 19, 2005 — read the decision on LawPhil →
- Spouses Lucia A. Orozco and Cresente R. Orozco (deceased), substituted by his heirs, namely:, G.R. No. 222616, April 3, 2019 — read the decision on LawPhil →