Data sources
Last updated 18 Sep 2026
“Retrieved” means the date we downloaded it — not the date the government changed it. Those are different, and the difference matters: the modified field on data.gov.hk records when the metadata was edited, not the data. We measure freshness from the file’s own HTTP Last-Modified instead. Current copies span 31 Aug 2026 to 18 Sep 2026.
Statutory orders and notices on buildings
Drives the red flags on every building page. Each of these is published as two separate lists — orders issued and orders cleared — with different start dates.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Buildings Department屋宇署 | Statutory Orders issued on unauthorised building works of the buildings | monthly | 16 Sep 2026 |
| Buildings Department屋宇署 | Statutory Notices issued on prescribed inspection/repair for buildings | monthly | 16 Sep 2026 |
| Buildings Department屋宇署 | Statutory Notices issued on prescribed inspection/repair for windows | monthly | 16 Sep 2026 |
| Buildings Department屋宇署 | Statutory Orders issued on dangerous buildings | monthly | 16 Sep 2026 |
Building age, storeys and height
Occupation permit dates give the year built; storeys and height above ground come from the Lands Department 3D model, measured rather than taken from the label.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Buildings Department屋宇署 | Completed new buildings for which occupation permits have been issued | monthly | 31 Aug 2026 |
School nets
Real Education Bureau boundaries, not an estate list. Primary One Admission and Secondary School Places Allocation work differently — see the school net pages.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Education Bureau教育局 | Primary One Admission (POA) School Net Boundaries | yearly | 17 Sep 2026 |
| Education Bureau教育局 | Secondary School Places Allocation (SSPA) System School Net Information | yearly | 17 Sep 2026 |
Records at an address
Matched to the building footprint by location (government coordinates falling inside the footprint, ±6 m), not by file number.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Land Registry土地註冊處 | Index of Owners' Corporations (OC) | monthly | 16 Sep 2026 |
| Electrical and Mechanical Services Department機電工程署 | Statutory Orders and Notices under the Lifts and Escalators Ordinance | daily | 16 Sep 2026 |
| Food and Environmental Hygiene Department食物環境衞生署 | Restaurant licences · Food licences | daily | 16 Sep 2026 |
| Town Planning Board城市規劃委員會 | Planning Applications Considered by the Town Planning Board | quarterly | 16 Sep 2026 |
Neighbourhood and market context
District-level reference only. Neither of these says anything about an individual flat.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Census and Statistics Department政府統計處 | 2021 Population Census — Small Tertiary Planning Unit statistics | every 10 years | 16 Sep 2026 |
| Rating and Valuation Department差餉物業估價署 | Property Market Statistics — Private Domestic | monthly | 16 Sep 2026 |
The daily archive
The government publishes the current state of these datasets and overwrites it. There is no history, no changelog, and a record that disappears from a list cannot be retrieved from any official source.
Since 31 Aug 2026 KongInsight has archived 9 of them every day — 4 Buildings Department order lists and 5 Food and Environmental Hygiene Department licence lists. Comparing two days is the only way to see when a record entered a list or left it, and leaving a list is the closest public evidence that an order was complied with.
Licence and reuse
The underlying datasets are published under the DATA.GOV.HK terms of use and the CSDI terms, which permit copying, adaptation and commercial use with attribution. KongInsight’s own derived layers — measured building heights, facade orientation, distance to a school net boundary, sun and shadow — are not government data and are not covered by those terms.
Building a dataset on top of this? Tell us what you need. We would rather the joined data existed publicly than be the only ones with it.
Scale
342,249 building footprints · 11,953 land-use zones · 375,154 land lots · 57 CSDI datasets in 9 packs on the map, plus the 14 datasets in the table above that drive the building and school net pages.