Ownership & law
KF formula (30-year extension)
Формула КФ (продление на 30 лет) · Coefficient formula for the 30-year extension
KF is the coefficient used in DOMA-represented projects to price the 30-year extension. Instead of "we'll agree when the time comes", the contract carries a formula: the base is the average market rent for land in the district, fixed from three independent sources and recalculated every two years. The owner is obliged to offer the extension at that price.
Why it matters: in 39 years the market and the landowner will be different, your contract will not. The formula removes the owner's mood and his heirs' bargaining position from the equation. Terms are identical for every investor in the project and protected by documents escrowed with the notary.
It is not a price guarantee — it is a mechanism guarantee. The price will be market-level at the time, but computed transparently.
Related terms
Updated: 2026-09-20. Not a public offer. Regulations change — we cite enacted acts only and update the entry when they do.
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