At territory zoom, you see all 18 Official HK Districts. Tap any district pill to zoom into its 8 benchmark housing estates (144 total), then tap any estate pill to open the decision card.
Every green/red pill deducts management fees, 5% Government Rates, and a 70% mortgage capped by the 75-minus-age rule. Flats up to HK$4.0M qualify for the 2026 HK$100 Stamp Duty tier.
Switch to 🏢 2. Lower My Rent in the menu to see RVD benchmark rent and how much a 1.5-month vacancy + agency fee costs your landlord, then copy a ready-to-send bilingual WhatsApp script.
Expand 🛡️ 2. Statutory Risks on any selected estate to check whether the lot intersects a LandsD private slope maintenance polygon or faces a shortened bank mortgage tenure.
Type any street or building name in the search bar to resolve exact coordinates via als.gov.hk, query CSDI WFS within ±35m for Occupation Permit age, and benchmark it against its official 18-District RVD index.
bd_rcd_1631167534872_19764), EDB POA School Nets (edb_rcd_1633320960920_77011), LandsD Slope Maintenance (landsd_rcd_1637220975523_8411), and Land Registry Owners' Corporations (landreg_rcd_1668151937201_80478).
als.gov.hk/lookup resolves exact WGS84 coordinates, queries CSDI WFS within ±35m for real building OP age, and pairs pricing with its true 18-District RVD benchmark.