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 Buildings Department list of statutory orders issued under section 24 of the Buildings Ordinance (Cap. 123) requiring the removal of unauthorised building works, with the address of each building. Orders issued and orders complied with are published as separate lists. | monthly | 16 Sep 2026 |
| Buildings Department屋宇署 | Statutory Notices issued on prescribed inspection/repair for buildings Buildings Department list of statutory notices issued under section 30B of the Buildings Ordinance (Cap. 123) under the Mandatory Building Inspection Scheme, requiring owners to inspect and repair the common parts of their building. | monthly | 16 Sep 2026 |
| Buildings Department屋宇署 | Statutory Notices issued on prescribed inspection/repair for windows Buildings Department list of statutory notices issued under section 30C of the Buildings Ordinance (Cap. 123) under the Mandatory Window Inspection Scheme, requiring owners to inspect and repair the windows of their building. | monthly | 16 Sep 2026 |
| Buildings Department屋宇署 | Statutory Orders issued on dangerous buildings Buildings Department list of statutory orders issued under section 26 of the Buildings Ordinance (Cap. 123) on buildings found to be dangerous or liable to become dangerous, with the address of each building. | 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 Buildings Department record of completed new buildings for which an occupation permit has been issued, with the permit date and location, published on the Common Spatial Data Infrastructure (CSDI) portal. KongInsight uses the permit date as the year a building was completed. | 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 Education Bureau Primary One Admission (POA) school nets: the boundaries that decide, by home address, which school net a child belongs to for Central Allocation of Primary One places. | yearly | 17 Sep 2026 |
| Education Bureau教育局 | Secondary School Places Allocation (SSPA) System School Net Information Education Bureau Secondary School Places Allocation (SSPA) school nets and the secondary schools serving each net, used when Primary Six students are allocated secondary school places. | 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) Land Registry index of owners' corporations registered under the Building Management Ordinance (Cap. 344), listing each corporation and the building it manages. | monthly | 16 Sep 2026 |
| Electrical and Mechanical Services Department機電工程署 | Statutory Orders and Notices under the Lifts and Escalators Ordinance Electrical and Mechanical Services Department list of statutory orders and notices issued under the Lifts and Escalators Ordinance (Cap. 618), with the address of the lift or escalator concerned. | daily | 16 Sep 2026 |
| Food and Environmental Hygiene Department食物環境衞生署 | Restaurant licences · Food licences Food and Environmental Hygiene Department lists of licensed restaurants and other licensed food premises in Hong Kong, with the licence type and the address of the premises. | daily | 16 Sep 2026 |
| Town Planning Board城市規劃委員會 | Planning Applications Considered by the Town Planning Board Town Planning Board record of planning applications considered under the Town Planning Ordinance (Cap. 131), with the application site, the proposed use and the outcome. | 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 2021 Population Census statistics from the Census and Statistics Department at Small Tertiary Planning Unit level: population, households, age and housing characteristics for small areas of Hong Kong. | every 10 years | 16 Sep 2026 |
| Rating and Valuation Department差餉物業估價署 | Property Market Statistics — Private Domestic Rating and Valuation Department statistics on the Hong Kong private domestic property market: price and rental indices, average prices and rents by size class and district, completions and take-up. | monthly | 16 Sep 2026 |
Addresses and estates
The official address record behind the address search in the sunlight tools, and the estate names that group blocks on the estate pages.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Lands Department地政總署 | Address Lookup Service (ALS) Lands Department Address Lookup Service: official Hong Kong addresses in English and Chinese with building names and grid coordinates, used by KongInsight to match an address to a building footprint. | daily | 18 Sep 2026 |
Subsidised sale prices
Behind the HOS and GSH transaction prices tool. The Housing Authority publishes one dataset per sale exercise; the latest is listed here, and the tool lists every exercise it uses.
| Department | Dataset | Gov updates | We retrieved |
|---|---|---|---|
| Hong Kong Housing Authority香港房屋委員會 | Transactions in the Sale of Home Ownership Scheme Flats 2024 Hong Kong Housing Authority record of flat selection transactions in the Home Ownership Scheme 2024 sale exercise: estate, block, floor, flat and selling price. Each sale exercise is published as its own dataset. | one dataset per sale exercise | 3 Sep 2026 |
| Hong Kong Housing Authority香港房屋委員會 | Transactions in the Sale of Green Form Subsidised Home Ownership Scheme (GSH) Flats 2024 Hong Kong Housing Authority record of flat selection transactions in the Green Form Subsidised Home Ownership Scheme (GSH) 2024 sale exercise: estate, block, floor, flat and selling price. | one dataset per sale exercise | 3 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 16 datasets in the table above that drive the building and school net pages.