Ownership Share Ratio — Risk Review
The risk in an ownership share ratio is rarely the mathematical fraction alone. The risk lies in what the fraction is attached to, how it was created and whether the documents describing it refer to the same independent unit. In Turkey, arsa payı is a registered part of the condominium structure. TKGM guidance describes it as the common ownership share in the main parcel allocated to an independent unit. A risk review therefore asks whether the registered share can be relied on in the specific purchase and what consequences follow if the record is inconsistent.
Identity risk
The first risk is attaching the right fraction to the wrong apartment. Similar unit numbers, blocks with repeated numbering and developer marketing codes can produce this mistake. If the title record is for Block B Unit 12 but the physical apartment shown is Block A Unit 12, a correct-looking share ratio does not solve the problem. The entire identity chain must be reconciled.
Allocation and history risk
TKGM notes that land shares are established in relation to the values of independent units and that all shares must be allocated to the units. A buyer may encounter a ratio that appears unusually small or large compared with similar apartments. That observation is a reason to investigate, not a legal conclusion. The file should distinguish the fact of what is currently registered from any allegation that the original allocation was inequitable. If a judicial or administrative correction has occurred, its effect should be visible in the registration history.
False inference risk
Many transaction mistakes come from treating arsa payı as proof of another right. The fraction does not by itself establish net usable area, an exclusive garden, a parking space, a storage room or a right to build an extra floor. Nor should it automatically be equated with the amount of monthly aidat. Those matters can depend on the project, management plan, appurtenance registration and statutory cost-sharing rules. The risk review should prevent the buyer from paying for benefits that the share does not legally prove.
Redevelopment and major-decision sensitivity
Land share can become economically important in decisions affecting the main property, redevelopment and the distribution of rights. This is one reason an unexplained discrepancy should not be dismissed as a clerical detail. Where a building is old, undergoing transformation or subject to major common-property decisions, the buyer should understand the registered share before taking on the ownership position. The review should not speculate about a future redevelopment outcome, but it should ensure the starting share is correctly identified.
Document risk
An old deed or a photocopied project list can be authentic yet obsolete. Compare dates and issuers. If the current title record and the approved project agree, an older private schedule normally has less evidential weight. If official documents disagree, the matter is more serious and should be resolved before closing. A seller’s statement that “the municipality knows about it” is not a substitute for a registered correction.
Risk rating
A low-risk file has a clear unit identity, a current registry fraction, consistent project information and no unexplained historical change. Medium risk arises where the current registry is clear but old records differ and the chronology needs to be documented. High risk arises when the independent unit itself is uncertain, the ratio differs across current official records, or the sale depends on a correction that has not yet been completed.
The practical aim is not to label a ratio “good” or “bad.” It is to determine whether the buyer knows exactly what registered share accompanies the unit and whether any inconsistency could affect ownership, common-property rights, future decisions or resale.
Official sources
- TKGM, Kat İrtifakı ve Kat Mülkiyeti guidance.
- Law No. 634, Kat Mülkiyeti Kanunu.