The WhiteIndex methodology is built on multi-layer data aggregation from sources of fundamentally different nature and temporal profiles, with cross-layer verification.

Five nalytical Layers
Layer I. Transactional and Registry Data
The baseline layer comprises data from the Thai Land Department (กรมที่ดิน) on actual land purchase and sale transactions across all 27 EEC districts. We work with documented transaction prices rather than official appraisal values (ราคาประเมิน), which in certain sub-markets trail actual market levels by 30–60%.

This layer establishes the historical price baseline and directional price movement for each sub-market over the past four years.

Layer II. Market Monitoring and Price Intelligence
Parallel monitoring of active listings across Thai and international platforms — DDproperty, Hipflat, FazWaz, Livinginsider — as well as direct offers from Thai brokers and developers. Listing prices are benchmarked against transaction prices to calculate the closing discount for each sub-market.

The output is a current map of where the market is transacting versus where it is asking.

Layer III. Predictive Analysis of the Infrastructure Calendar
The most critical and labour-intensive layer. EEC infrastructure projects — high-speed rail, U-Tapao expansion, industrial parks, interchanges — are fully announced in official communications. The challenge is that a significant portion are running behind schedule, while others remain at the level of political declarations without confirmed funding.

We conduct independent verification of each infrastructure asset across three parameters: funding status (confirmed budget vs. political commitment), the track record of similar projects by the same contractor or agency, and the degree of physical progress to date. Each asset is assigned one of three status classifications:
High probability of delivery within the stated timeline
Moderate probability with horizon adjustment
Low probability with material risk of deferral or cancellation

This fundamentally changes the infrastructure impulse map: the investor sees not what has been promised, but what will realistically happen — and when.

Layer IV. Developer Activity and Insider Monitoring
The movement of large-scale developer capital leads price changes by 12–24 months. We track several early-activity indicators: applications for rezoning and change of land use at local authorities; activity in consolidating adjacent plots (a sign of preparation for a major project); the emergence of brokers from large developer groups in sub-markets outside their previous perimeter; and intelligence from our professional network — Thai lawyers, land agents, and developers operating in the region.

This layer resists formalisation, but it is precisely what enables the identification of sub-markets at the stage that precedes visible price movement.

Layer V. Regulatory and Legal Monitoring
The investment attractiveness of a sub-market cannot be assessed in isolation from its legal environment. We analyse current changes in zoning (Phang Muang), provincial and regional land use plans, the status of BOI zones and their practical impact on land accessibility for foreign capital, and enforcement practice over the past 12–18 months with respect to foreign ownership structures.

This layer shifts the investment recommendation from 'where is it profitable' to 'where is it profitable and legally executable'.