OSM coverage gaps over time

How many City of Guelph buildings still have no OpenStreetMap building on them — missing, small (sheds and garages) and drawn from a site plan — one point per weekly comparison, so a mapper can see the worklist shrink.

1 comparisons since 2026-10-09 · last 2026-10-09 · current gaps · data (JSONL)

Counts follow the City's Buildings layer, so they move when the City adds or removes buildings, not only when someone maps one.

Every comparison

Built by guelph-maps/guelph-buildings-layer. OSM data © OpenStreetMap contributors. Contains information licensed under the Open Government Licence – City of Guelph.