Building Information (BD)

Source

Buildings Department (BD)

URL: https://www.bd.gov.hk/en/
CKAN: https://data.gov.hk/en-data/api/3/action/package_search?q=building+information
GeoInfo Map: https://www.map.gov.hk/gm/map/s/building

Format

~42,000

Buildings

Quarterly

Update Frequency

CSV / SHP

Format

Schema / Fields

Field	Type	Example	Description
`BUILDING_NAME`	string	`"Tower 1, Lippo Centre"`	Building name
`ADDRESS`	string	`"89 Queensway, Admiralty"`	Street address
`DISTRICT`	string	`"Central & Western"`	District
`YEAR_COMPLETED`	int	`1988`	Year of completion
`FLOORS_ABOVE`	int	`46`	Floors above ground
`FLOORS_BELOW`	int	`3`	Basement levels
`USAGE`	string	`"Commercial"`	Primary usage (Residential/Commercial/Industrial/Mixed)
`LATITUDE`	float	`22.2790`	WGS84 latitude
`LONGITUDE`	float	`114.1650`	WGS84 longitude

Example API Call

curl -s "https://data.gov.hk/en-data/api/3/action/package_search?q=building+information+department" \
  | jq '.result.results[0].resources[] | {name, url, format}'

Used By

Model	How It’s Used
Site Rating Scorecard	Building age and floor count as physical constraint indicators; commercial density scoring
Catchment Area	Building footprints define walkable population (residential floors × avg household size)
Regression Model	Building usage mix as independent variable (commercial ratio predicts lunch crowd)

Notes / Gotchas

Not all buildings have coordinates; older records may only have addresses (geocode with Google or HK GeoInfo)
USAGE field may say “Composite” for mixed residential-commercial; you’ll need to estimate the commercial portion
Building age is a strong proxy for rental pricing tier; pre-1980 buildings in Central typically have cheaper rents
Village houses and NT small houses are often missing from BD data