Floor-area-sharing and urban transformation contracts: 6 critical points for property owners from a technical investor's perspective

In urban transformation talks, the first number on the property owner's agenda is usually the sharing ratio: 50 percent, 45 percent, a flat plus cash, and so on. This ratio matters; but on its own it does not tell you whether the investment is good or bad. The same ratio produces completely different outcomes under different development rights, different construction quality, different delivery times and different sale values. A high ratio can translate into a low return in a low-quality project, while a lower ratio can produce a stronger outcome in a project with a strong location and high quality.

A correct comparison requires reading the ratio together with the total value the project produces. A ratio quoted before the parcel's floor-area ratio, number of floors, unit typology, common-area layout and target sale price are determined is a promise with no content. The question the owner should ask is not 'what percentage do I get?' but 'at the end of the contract, what quality of asset, at what value, and by when, passes into my hands?'

For this reason, in evaluating an offer the ratio, the product and the timeline must be handled together. A ratio negotiation conducted without knowing the development rights, the saleable area and a realistic sale value can drag the owner into an agreement that looks strong but is weak in substance.

The technical issue most often overlooked in floor-area-sharing (kat karşılığı) contracts is the failure to define clearly which units fall to the owner: on which floor, with which façade and at what size. The phrase '50 percent', if it is not fixed with a drawing showing which apartments belong to whom, leaves an area open to dispute at the implementation stage. Even if two apartments have the same square meterage, they carry a value difference depending on floor, view, façade and parking situation.

In a sound contract, the units allocated to the owner are marked on a list and on the approved project; the distribution of the land share (arsa payı) is also structured to be consistent with this allocation. Registering the land share early and in a balanced way at the title deed directly affects the owner's legal security. Collateral given before this arrangement is made often remains only on paper.

On this point, the technical perspective takes the owner out of the abstract percentage debate and into a concrete definition of the asset. Which block, which floor, how many square meters, which annexes and which common rights — these must be clear in the contract's annexes. An ambiguous definition produces loss of value and disputes later on.

In urban transformation projects, the most tangible risk is time. After evacuation, every delay between obtaining the permit, starting construction and completing delivery is a direct cost for the owner, because during this period they wait while paying rent or being left without a home. The contract should therefore not be content with merely saying 'it will be finished in so many months'; it should include separate dates for obtaining the permit, starting construction and delivery, and the delay penalty to be applied if these dates are exceeded.

A realistic timeline takes the project's permit process, zoning status and site conditions into account. A short delivery promise given for a project whose permit is still uncertain is a promise that does not hold in practice. Before signing the timeline, the owner should learn at what stage the permit process stands and which municipal/agency approvals are required.

A timeline without penalties is not a timeline. Mechanisms such as who will cover the rent assistance in case of delay and for how long, and termination of the contract together with calling the collateral if a certain threshold is exceeded, must be in writing. These clauses are the elements that also discipline the contractor and keep the project realistic.

For the owner, floor-area-sharing is not an upfront sale; it is a receivable relationship whose delivery is spread into the future. The collateral structure is therefore critical. Instruments such as a mortgage, a bank letter of guarantee, the timing of the construction servitude (kat irtifakı) arrangement and, where needed, income security in revenue-sharing models protect the owner if the contractor fails to meet its obligations.

A balanced sharing of risk also increases the sustainability of the contract. Contracts that dump all the risk onto one side usually break down at the first difficulty. In a period when financing conditions, material costs and sales velocity can change, defining in advance how unexpected situations will be managed is in the interest of both parties. This reflects not bad faith, but realistic engineering and financial planning.

The collateral and risk clauses are often the least-read but most decisive part of the contract. Here the owner needs to obtain technical and legal support together; to clarify whether the collateral can truly be turned into cash, when the construction servitude (kat irtifakı) will be established, and what happens in the event of termination.

When urban transformation is carried out within the framework of Law No. 6306 (Afet Riski Altındaki Alanların Dönüştürülmesi Hakkında Kanun), steps such as the risky-building (riskli yapı) determination, the owners' decision, evacuation and demolition must proceed in line with the regulations. Which party will carry out this process, who will bear its costs, and how the state supports (such as rent assistance, loan/interest support and fee exemptions) will be used must be clear in the contract. Because current amounts and rates change periodically, these items should be confirmed from official sources.

The owner's correct understanding of the process increases their negotiating power. An owner who knows how the risky-building (riskli yapı) determination is made, how the owner majority is achieved and the basic concepts of the process stands more firmly at the table. All of this foundational information is explained step by step in our comprehensive Urban Transformation & Zoning Law Guide (/en/urban-transformation-guide/).

Technical advisory at this point clarifies the owner's rights and obligations by reading the regulations and the site together. The aim is not to turn the process in favor of one side, but to make the decision with knowledge, a realistic timeline and measurable safeguards.

For the owner, the strongest protection is to have an independent technical and valuation review done before signing. When the project's development rights, saleable area, realistic sale value and the share due to the owner within that value are calculated in advance, the ratio negotiation rests on a concrete footing. CMB-licensed valuation and independent feasibility turn promises into measurable numbers.

This review also enables comparison of alternatives: different contractors' offers become comparable not only by ratio, but also in terms of product quality, timeline realism, collateral strength and delivery quality. In this way the owner can choose not the highest ratio, but the most defensible total outcome.

In the Lizaz Emlak approach, urban transformation positions the owner as an investor too. When engineering discipline, field experience and financial reading are used together, the owner manages the process not with momentary pressure but with technical clarity. A well-structured contract protects both the owner and the project.