Why Valuation Methodology Matters More in Türkiye Than at Home
UK buyers acquiring property in Türkiye often carry over an assumption from the domestic market: that a valuation report is a routine formality attached to a mortgage application. In Türkiye, the valuation report, known locally as the "değerleme raporu," performs a far more active role. It underpins the title deed transfer price declared to the Land Registry, it is a mandatory precondition for any foreign national completing a purchase, and it is the reference point tax authorities use when assessing whether the declared sale price matches market reality. Understanding how these reports are produced, and where their limitations lie, is essential before relying on one to justify a purchase price or a resale expectation.
Who Is Licensed to Value Property : Valuation in Türkiye is performed by licensed appraisal firms accredited by the Capital Markets Board (SPK), not by estate agents or developers. A report must be commissioned from an SPK-licensed appraiser for any transaction involving a foreign buyer, and the appraiser has no commercial relationship with the seller or the agent involved in the deal. This structural separation is a safeguard, but it does not eliminate variance between appraisers, and UK buyers should treat a single report as a data point rather than a definitive figure, particularly in secondary and emerging districts where transaction data is thinner.
The Three Approaches and Where Each Falls Short
Turkish appraisers typically apply a combination of the sales comparison approach, the cost approach, and, for income-producing assets, the income capitalisation approach. The sales comparison method is the most commonly cited, but its reliability depends heavily on the depth of comparable transaction data available in a given district. In established markets such as central Istanbul, Ankara, or coastal towns like Bodrum and Fethiye where British buyers are concentrated, comparable data is reasonably robust. In newer development corridors, particularly off-plan projects in expanding suburbs, comparables may be limited to a handful of recent sales within the same development, which introduces circularity: the appraiser is partly validating the developer's own pricing.
The cost approach, based on land value plus construction cost less depreciation, is useful for newer builds but tends to understate value in locations where land scarcity or view premiums drive price rather than construction cost. For rental-focused UK investors, the income approach is often the most relevant, but it requires reliable rental comparables, and short-term holiday letting yields in tourist zones can distort the picture if the appraiser does not distinguish between long-term and short-term rental markets.
Currency and Inflation Distortion : A factor specific to the Turkish market that UK buyers should weigh carefully is the interaction between lira-denominated valuations and sustained domestic inflation. Appraisal reports are issued in Turkish lira, and headline lira price appreciation figures can look dramatic while sterling-denominated value tells a different story once exchange rate movement is stripped out. A serious appraisal review, or a second opinion commissioned independently of the seller's side, should always convert reported values into sterling terms across a multi-year window before any investment conclusion is drawn.
Practical Steps for UK Buyers
Before relying on a valuation report to justify a purchase price, UK buyers should confirm the appraiser's SPK license number, request the underlying comparable sales data rather than accepting the summary conclusion alone, and, where the transaction value is material, commission a second independent report from a different licensed firm. It is also worth requesting that the report separate land value from structure value explicitly, since this distinction matters both for future capital gains tax calculations and for any dispute over declared transaction value with the Land Registry.
Declared Price Versus Market Price : Turkish tax authorities have tightened scrutiny of the gap between declared sale prices and appraised market values in recent years, partly to address historic under-declaration used to reduce transfer taxes. Buyers should expect the declared price on the title deed to closely track the appraisal figure, and should not treat the appraisal as a negotiable formality that can be set arbitrarily low. For UK investors planning eventual resale or seeking mortgage financing from a Turkish lender, a well-documented, independently verified valuation is not just a compliance step. It is the foundation for every subsequent financial decision tied to the asset, from financing terms to tax exposure to eventual exit pricing.
Engaging an advisory team that can commission, review, and where necessary challenge a valuation report before contracts are signed remains the most effective way for UK buyers to avoid relying on a single, potentially optimistic figure.