Look up a single building by its EGID (federal building identifier).

Uses the live geo.admin.ch API — always current, no dump download needed. The EGID is the join key used across Swiss administrative data.

Geocode a Swiss address to EGID/EDID and LV95 coordinates.

This is the bridge that makes other data sources EGID-capable: address in → federal building identifier out.

List all dwellings (EWID) of a building from the daily cantonal dump.

Includes rooms, floor area, floor and status per dwelling.

New residential construction per year for a municipality (existing buildings).

Returns buildings, dwellings and 4+ room dwellings per year — the 4+ room share is a proxy for family housing and thus for future pupil numbers. Municipality is identified by its BFS number (e.g. 261 = City of Zurich).

Buildings and dwellings in the planning/construction pipeline of a municipality.

Breaks down by status: projected (GSTAT 1001), approved (1002), under construction (1003). Dwellings under construction today are households in 1-3 years — the early indicator for school-space planning.

Aggregate buildings/dwellings inside an LV95 bounding box.

Enables sub-municipal analysis, e.g. school districts: pass the bounding box of a Schulkreis to count new construction within it. LV95 (EPSG:2056): east ~2'480'000-2'840'000, north ~1'070'000-1'300'000.

Housing stock overview of a municipality: buildings, dwellings, room-size mix.

Decode a GWR code value (e.g. GSTAT=1004, GKAT=1020) into human-readable labels.

Uses the official code table shipped with the dump (DE/FR/IT).

Cache status of the cantonal GWR dumps (graceful-degradation entry point).

Always returns an evaluable status — never silently empty records. If a source is unreachable, this tool tells you when data was last refreshed.