Official facts that control the topic
The first substantive rule for “Change Impact Assessment — Condominium ownership status” is this: Kat mülkiyeti is condominium ownership of an independent unit in a completed building; the independent-unit number, related arsa payı and registry entry are central.
Applied specifically through the “Change Impact Assessment” lens to Condominium ownership status, the official position is more precise: TKGM explains that a building with kat irtifakı and a Yapı Kullanma İzin Belgesi can transition to kat mülkiyeti under the statutory mechanism, including ex officio conversion in specified cases. A kat mülkiyeti entry describes the legal form of ownership but does not by itself prove that the unit is free of mortgages, annotations, debts or technical defects.
What this review changes
Change-impact assessment starts by asking what changed in Condominium ownership status since the prior version and what that change actually affects. Not every update has equal weight: some are clerical, others alter rights, cost or eligibility to proceed.
Establish the before/after position using these items: registry status, independent-unit number, floor/type, arsa payı, block/parcel, occupancy permit where relevant to conversion and latest registration date. Then trace the change through the property, party, amount, deadline and any dependent document.
Documents and data that must reconcile
For “Change Impact Assessment”, the key evidence is: registry status, independent-unit number, floor/type, arsa payı, block/parcel, occupancy permit where relevant to conversion and latest registration date
Scope boundary
Because this record is limited to “Change Impact Assessment”, its boundary matters: Kat mülkiyeti does not automatically mean every alteration is permitted or that the building is free of technical risk.
Record-specific applied review
A change-impact assessment for condominium ownership begins by identifying exactly what changed: the independent-section description, its number, the associated arsa payı, a conversion from kat irtifakı to kat mülkiyeti, or merely a secondary document. These events do not have the same consequence, so a file should not record only that the status was “updated”; it should preserve a before-and-after comparison of the registry facts that matter.
Where the change touches the independent unit or its land share, the reviewer should re-check that the transaction subject still matches the title entry, architectural project and any valuation or finance data that relied on the former description. A legal conversion from construction servitude to condominium ownership should be documented with its date and official basis while retaining the earlier status as historical evidence. The July 2026 TKGM amendment to Circular 2021/4 also means that a procedural conclusion should be tested against current instructions rather than an older workflow copy.
The purpose is not to label every change as positive or negative. It is to determine whether the change affects the identity, scope or evidential reliability of the right. If the same independent unit, share and material description remain stable, the impact may be limited. If any of those core facts changes, every dependent verification step—title match, valuation assumptions, finance conditions and closing documents—should be rerun before the file is treated as ready.
Official source
TKGM — Kat İrtifakı ve Kat Mülkiyeti 2021/4
Impact of a change in condominium-ownership status
When the registry moves between Kat İrtifakı and Kat Mülkiyeti, assess the transaction consequence rather than simply changing the label in the file. Identify the date of change, the document evidencing it and whether the unit identity and share remained consistent. Conversion may be an expected step in a project lifecycle, but it is still a legal-status change that should be reflected throughout the transaction documents.
Review contracts, valuations, powers of attorney and payment conditions prepared before the change. If they describe the former right, determine whether they need amendment or whether evidence of conversion is sufficient. Revisit any promise based on future status: if conversion has occurred, replace the promise with proof; if it has not, do not describe the future status as an existing fact.
Also trace any effect on closing timing, required documents or transferability. A status change is not automatically adverse, but a mismatch between the current registry and commercial paperwork must be reconciled. The final assessment should state what legally changed, what remained constant and which documents became stale because of the transition.