Data & Methodology
Last updated July 2, 2026
Zeltez aggregates housing-market data from official statistics and published market indices. This page documents where every number comes from and how much to trust it.
Sources by country
| Region | Source | Cadence |
|---|---|---|
| United States | Zillow Research — ZHVI home values & ZORI rents | Monthly |
| United Kingdom | ONS House Price Index & HM Land Registry (contains public sector information licensed under the Open Government Licence v3.0) | Monthly |
| South Korea | 국토교통부 (Ministry of Land, Infrastructure and Transport) 실거래가 공개 API — actual transaction prices | Monthly |
| World cities | Multi-source cross-checked research estimates (national statistics offices, notary indices, major listing portals) | Periodic |
| Future events / catalysts | News-sourced and link-verified; each item carries its source link | Periodic |
Confidence labels
- Cross-checked — confirmed by two or more independent sources or an official index.
- Estimate — single reputable source or modeled from a closely related index.
- Rough estimate — limited data available; treat as indicative only.
We never fabricate values. Where no reliable data exists, we show nothing rather than a guess.
Update cadence
US and UK figures refresh monthly with the source indices. World-city estimates and future events are reviewed and updated periodically.
Credits
- Map tiles: © CARTO © OpenStreetMap contributors; satellite imagery: Esri World Imagery.
- Charts: TradingView Lightweight Charts™.
Disclaimer
All figures are informational estimates provided "as is". Nothing on Zeltez constitutes financial, investment, or legal advice.
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